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from langchain.callbacks.manager import CallbackManager
from langchain.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
from langchain.prompts import PromptTemplate
from langchain_community.llms import TitanTakeoffPro
llm = | TitanTakeoffPro() | langchain_community.llms.TitanTakeoffPro |
URL = "" # Your Fiddler instance URL, Make sure to include the full URL (including https://). For example: https://demo.fiddler.ai
ORG_NAME = ""
AUTH_TOKEN = "" # Your Fiddler instance auth token
PROJECT_NAME = ""
MODEL_NAME = "" # Model name in Fiddler
from langchain_community.callbacks.fiddler_callback import FiddlerCallbackHandler
fiddler_handler = FiddlerCallbackHandler(
url=URL,
org=ORG_NAME,
project=PROJECT_NAME,
model=MODEL_NAME,
api_key=AUTH_TOKEN,
)
from langchain_core.output_parsers import StrOutputParser
from langchain_openai import OpenAI
llm = OpenAI(temperature=0, streaming=True, callbacks=[fiddler_handler])
output_parser = StrOutputParser()
chain = llm | output_parser
chain.invoke("How far is moon from earth?")
chain.invoke("What is the temperature on Mars?")
chain.invoke("How much is 2 + 200000?")
chain.invoke("Which movie won the oscars this year?")
chain.invoke("Can you write me a poem about insomnia?")
chain.invoke("How are you doing today?")
chain.invoke("What is the meaning of life?")
from langchain.prompts import (
ChatPromptTemplate,
FewShotChatMessagePromptTemplate,
)
examples = [
{"input": "2+2", "output": "4"},
{"input": "2+3", "output": "5"},
]
example_prompt = | ChatPromptTemplate.from_messages(
[
("human", "{input}") | langchain.prompts.ChatPromptTemplate.from_messages |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain_community.chat_models import ChatAnthropic
from langchain_openai import ChatOpenAI
from unittest.mock import patch
import httpx
from openai import RateLimitError
request = httpx.Request("GET", "/")
response = httpx.Response(200, request=request)
error = RateLimitError("rate limit", response=response, body="")
openai_llm = ChatOpenAI(max_retries=0)
anthropic_llm = ChatAnthropic()
llm = openai_llm.with_fallbacks([anthropic_llm])
with patch("openai.resources.chat.completions.Completions.create", side_effect=error):
try:
print(openai_llm.invoke("Why did the chicken cross the road?"))
except RateLimitError:
print("Hit error")
with patch("openai.resources.chat.completions.Completions.create", side_effect=error):
try:
print(llm.invoke("Why did the chicken cross the road?"))
except RateLimitError:
print("Hit error")
from langchain_core.prompts import ChatPromptTemplate
prompt = ChatPromptTemplate.from_messages(
[
(
"system",
"You're a nice assistant who always includes a compliment in your response",
),
("human", "Why did the {animal} cross the road"),
]
)
chain = prompt | llm
with patch("openai.resources.chat.completions.Completions.create", side_effect=error):
try:
print(chain.invoke({"animal": "kangaroo"}))
except RateLimitError:
print("Hit error")
from langchain_core.output_parsers import StrOutputParser
chat_prompt = ChatPromptTemplate.from_messages(
[
(
"system",
"You're a nice assistant who always includes a compliment in your response",
),
("human", "Why did the {animal} cross the road"),
]
)
chat_model = ChatOpenAI(model_name="gpt-fake")
bad_chain = chat_prompt | chat_model | StrOutputParser()
from langchain.prompts import PromptTemplate
from langchain_openai import OpenAI
prompt_template = """Instructions: You should always include a compliment in your response.
Question: Why did the {animal} cross the road?"""
prompt = PromptTemplate.from_template(prompt_template)
llm = OpenAI()
good_chain = prompt | llm
chain = bad_chain.with_fallbacks([good_chain])
chain.invoke({"animal": "turtle"})
short_llm = ChatOpenAI()
long_llm = ChatOpenAI(model="gpt-3.5-turbo-16k")
llm = short_llm.with_fallbacks([long_llm])
inputs = "What is the next number: " + ", ".join(["one", "two"] * 3000)
try:
print(short_llm.invoke(inputs))
except Exception as e:
print(e)
try:
print(llm.invoke(inputs))
except Exception as e:
print(e)
from langchain.output_parsers import DatetimeOutputParser
prompt = ChatPromptTemplate.from_template(
"what time was {event} (in %Y-%m-%dT%H:%M:%S.%fZ format - only return this value)"
)
openai_35 = | ChatOpenAI() | langchain_openai.ChatOpenAI |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langkit langchain-openai langchain')
from langchain.callbacks import WhyLabsCallbackHandler
from langchain_openai import OpenAI
whylabs = WhyLabsCallbackHandler.from_params()
llm = | OpenAI(temperature=0, callbacks=[whylabs]) | langchain_openai.OpenAI |
from langchain.document_loaders.csv_loader import CSVLoader
loader = | CSVLoader("data/corp_sens_data.csv") | langchain.document_loaders.csv_loader.CSVLoader |
from getpass import getpass
KAY_API_KEY = getpass()
OPENAI_API_KEY = getpass()
import os
os.environ["KAY_API_KEY"] = KAY_API_KEY
os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY
from langchain.chains import ConversationalRetrievalChain
from langchain.retrievers import KayAiRetriever
from langchain_openai import ChatOpenAI
model = ChatOpenAI(model_name="gpt-3.5-turbo")
retriever = KayAiRetriever.create(
dataset_id="company", data_types=["PressRelease"], num_contexts=6
)
qa = | ConversationalRetrievalChain.from_llm(model, retriever=retriever) | langchain.chains.ConversationalRetrievalChain.from_llm |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-robocorp')
from langchain.agents import AgentExecutor, OpenAIFunctionsAgent
from langchain_core.messages import SystemMessage
from langchain_openai import ChatOpenAI
from langchain_robocorp import ActionServerToolkit
llm = | ChatOpenAI(model="gpt-4", temperature=0) | langchain_openai.ChatOpenAI |
from langchain_community.graphs import OntotextGraphDBGraph
graph = OntotextGraphDBGraph(
query_endpoint="http://localhost:7200/repositories/langchain",
query_ontology="CONSTRUCT {?s ?p ?o} FROM <https://swapi.co/ontology/> WHERE {?s ?p ?o}",
)
graph = OntotextGraphDBGraph(
query_endpoint="http://localhost:7200/repositories/langchain",
local_file="/path/to/langchain_graphdb_tutorial/starwars-ontology.nt", # change the path here
)
import os
from langchain.chains import OntotextGraphDBQAChain
from langchain_openai import ChatOpenAI
os.environ["OPENAI_API_KEY"] = "sk-***"
chain = OntotextGraphDBQAChain.from_llm(
| ChatOpenAI(temperature=0, model_name="gpt-4-1106-preview") | langchain_openai.ChatOpenAI |
meals = [
"Beef Enchiladas with Feta cheese. Mexican-Greek fusion",
"Chicken Flatbreads with red sauce. Italian-Mexican fusion",
"Veggie sweet potato quesadillas with vegan cheese",
"One-Pan Tortelonni bake with peppers and onions",
]
from langchain_openai import OpenAI
llm = OpenAI(model="gpt-3.5-turbo-instruct")
from langchain.prompts import PromptTemplate
PROMPT_TEMPLATE = """Here is the description of a meal: "{meal}".
Embed the meal into the given text: "{text_to_personalize}".
Prepend a personalized message including the user's name "{user}"
and their preference "{preference}".
Make it sound good.
"""
PROMPT = PromptTemplate(
input_variables=["meal", "text_to_personalize", "user", "preference"],
template=PROMPT_TEMPLATE,
)
import langchain_experimental.rl_chain as rl_chain
chain = rl_chain.PickBest.from_llm(llm=llm, prompt=PROMPT)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference= | rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]) | langchain_experimental.rl_chain.BasedOn |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai context-python')
import os
from langchain.callbacks import ContextCallbackHandler
token = os.environ["CONTEXT_API_TOKEN"]
context_callback = ContextCallbackHandler(token)
import os
from langchain.callbacks import ContextCallbackHandler
from langchain.schema import (
HumanMessage,
SystemMessage,
)
from langchain_openai import ChatOpenAI
token = os.environ["CONTEXT_API_TOKEN"]
chat = ChatOpenAI(
headers={"user_id": "123"}, temperature=0, callbacks=[ContextCallbackHandler(token)]
)
messages = [
SystemMessage(
content="You are a helpful assistant that translates English to French."
),
HumanMessage(content="I love programming."),
]
print(chat(messages))
import os
from langchain.callbacks import ContextCallbackHandler
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain.prompts.chat import (
ChatPromptTemplate,
HumanMessagePromptTemplate,
)
from langchain_openai import ChatOpenAI
token = os.environ["CONTEXT_API_TOKEN"]
human_message_prompt = HumanMessagePromptTemplate(
prompt=PromptTemplate(
template="What is a good name for a company that makes {product}?",
input_variables=["product"],
)
)
chat_prompt_template = ChatPromptTemplate.from_messages([human_message_prompt])
callback = | ContextCallbackHandler(token) | langchain.callbacks.ContextCallbackHandler |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet tiktoken langchain-openai python-dotenv datasets langchain deeplake beautifulsoup4 html2text ragas')
ORG_ID = "..."
import getpass
import os
from langchain.chains import RetrievalQA
from langchain.vectorstores.deeplake import DeepLake
from langchain_openai import OpenAIChat, OpenAIEmbeddings
os.environ["OPENAI_API_KEY"] = getpass.getpass("Enter your OpenAI API token: ")
os.environ["ACTIVELOOP_TOKEN"] = getpass.getpass(
"Enter your ActiveLoop API token: "
) # Get your API token from https://app.activeloop.ai, click on your profile picture in the top right corner, and select "API Tokens"
token = os.getenv("ACTIVELOOP_TOKEN")
openai_embeddings = OpenAIEmbeddings()
db = DeepLake(
dataset_path=f"hub://{ORG_ID}/deeplake-docs-deepmemory", # org_id stands for your username or organization from activeloop
embedding=openai_embeddings,
runtime={"tensor_db": True},
token=token,
read_only=False,
)
from urllib.parse import urljoin
import requests
from bs4 import BeautifulSoup
def get_all_links(url):
response = requests.get(url)
if response.status_code != 200:
print(f"Failed to retrieve the page: {url}")
return []
soup = BeautifulSoup(response.content, "html.parser")
links = [
urljoin(url, a["href"]) for a in soup.find_all("a", href=True) if a["href"]
]
return links
base_url = "https://docs.deeplake.ai/en/latest/"
all_links = get_all_links(base_url)
from langchain.document_loaders import AsyncHtmlLoader
loader = AsyncHtmlLoader(all_links)
docs = loader.load()
from langchain.document_transformers import Html2TextTransformer
html2text = Html2TextTransformer()
docs_transformed = html2text.transform_documents(docs)
from langchain_text_splitters import RecursiveCharacterTextSplitter
chunk_size = 4096
docs_new = []
text_splitter = RecursiveCharacterTextSplitter(
chunk_size=chunk_size,
)
for doc in docs_transformed:
if len(doc.page_content) < chunk_size:
docs_new.append(doc)
else:
docs = text_splitter.create_documents([doc.page_content])
docs_new.extend(docs)
docs = db.add_documents(docs_new)
from typing import List
from langchain.chains.openai_functions import (
create_structured_output_chain,
)
from langchain_core.messages import HumanMessage, SystemMessage
from langchain_core.prompts import ChatPromptTemplate, HumanMessagePromptTemplate
from langchain_openai import ChatOpenAI
from pydantic import BaseModel, Field
docs = db.vectorstore.dataset.text.data(fetch_chunks=True, aslist=True)["value"]
ids = db.vectorstore.dataset.id.data(fetch_chunks=True, aslist=True)["value"]
llm = ChatOpenAI(model="gpt-3.5-turbo", temperature=0)
class Questions(BaseModel):
"""Identifying information about a person."""
question: str = Field(..., description="Questions about text")
prompt_msgs = [
SystemMessage(
content="You are a world class expert for generating questions based on provided context. \
You make sure the question can be answered by the text."
),
HumanMessagePromptTemplate.from_template(
"Use the given text to generate a question from the following input: {input}"
),
HumanMessage(content="Tips: Make sure to answer in the correct format"),
]
prompt = ChatPromptTemplate(messages=prompt_msgs)
chain = create_structured_output_chain(Questions, llm, prompt, verbose=True)
text = "# Understanding Hallucinations and Bias ## **Introduction** In this lesson, we'll cover the concept of **hallucinations** in LLMs, highlighting their influence on AI applications and demonstrating how to mitigate them using techniques like the retriever's architectures. We'll also explore **bias** within LLMs with examples."
questions = chain.run(input=text)
print(questions)
import random
from langchain_openai import OpenAIEmbeddings
from tqdm import tqdm
def generate_queries(docs: List[str], ids: List[str], n: int = 100):
questions = []
relevances = []
pbar = tqdm(total=n)
while len(questions) < n:
r = random.randint(0, len(docs) - 1)
text, label = docs[r], ids[r]
generated_qs = [chain.run(input=text).question]
questions.extend(generated_qs)
relevances.extend([[(label, 1)] for _ in generated_qs])
pbar.update(len(generated_qs))
if len(questions) % 10 == 0:
print(f"q: {len(questions)}")
return questions[:n], relevances[:n]
chain = create_structured_output_chain(Questions, llm, prompt, verbose=False)
questions, relevances = generate_queries(docs, ids, n=200)
train_questions, train_relevances = questions[:100], relevances[:100]
test_questions, test_relevances = questions[100:], relevances[100:]
job_id = db.vectorstore.deep_memory.train(
queries=train_questions,
relevance=train_relevances,
)
db.vectorstore.deep_memory.status("6538939ca0b69a9ca45c528c")
recall = db.vectorstore.deep_memory.evaluate(
queries=test_questions,
relevance=test_relevances,
)
from ragas.langchain import RagasEvaluatorChain
from ragas.metrics import (
context_recall,
)
def convert_relevance_to_ground_truth(docs, relevance):
ground_truths = []
for rel in relevance:
ground_truth = []
for doc_id, _ in rel:
ground_truth.append(docs[doc_id])
ground_truths.append(ground_truth)
return ground_truths
ground_truths = convert_relevance_to_ground_truth(docs, test_relevances)
for deep_memory in [False, True]:
print("\nEvaluating with deep_memory =", deep_memory)
print("===================================")
retriever = db.as_retriever()
retriever.search_kwargs["deep_memory"] = deep_memory
qa_chain = RetrievalQA.from_chain_type(
llm=OpenAIChat(model="gpt-3.5-turbo"),
chain_type="stuff",
retriever=retriever,
return_source_documents=True,
)
metrics = {
"context_recall_score": 0,
}
eval_chains = {m.name: RagasEvaluatorChain(metric=m) for m in [context_recall]}
for question, ground_truth in zip(test_questions, ground_truths):
result = qa_chain({"query": question})
result["ground_truths"] = ground_truth
for name, eval_chain in eval_chains.items():
score_name = f"{name}_score"
metrics[score_name] += eval_chain(result)[score_name]
for metric in metrics:
metrics[metric] /= len(test_questions)
print(f"{metric}: {metrics[metric]}")
print("===================================")
retriever = db.as_retriever()
retriever.search_kwargs["deep_memory"] = True
retriever.search_kwargs["k"] = 10
query = "Deamination of cytidine to uridine on the minus strand of viral DNA results in catastrophic G-to-A mutations in the viral genome."
qa = RetrievalQA.from_chain_type(
llm= | OpenAIChat(model="gpt-4") | langchain_openai.OpenAIChat |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-core langchain-experimental langchain-openai')
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import (
ChatPromptTemplate,
)
from langchain_experimental.utilities import PythonREPL
from langchain_openai import ChatOpenAI
template = """Write some python code to solve the user's problem.
Return only python code in Markdown format, e.g.:
```python
....
```"""
prompt = ChatPromptTemplate.from_messages([("system", template), ("human", "{input}")])
model = ChatOpenAI()
def _sanitize_output(text: str):
_, after = text.split("```python")
return after.split("```")[0]
chain = prompt | model | | StrOutputParser() | langchain_core.output_parsers.StrOutputParser |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet dashvector dashscope')
import getpass
import os
os.environ["DASHVECTOR_API_KEY"] = getpass.getpass("DashVector API Key:")
os.environ["DASHSCOPE_API_KEY"] = getpass.getpass("DashScope API Key:")
from langchain_community.embeddings.dashscope import DashScopeEmbeddings
from langchain_community.vectorstores import DashVector
from langchain_text_splitters import CharacterTextSplitter
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = | DashScopeEmbeddings() | langchain_community.embeddings.dashscope.DashScopeEmbeddings |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet O365')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet beautifulsoup4 # This is optional but is useful for parsing HTML messages')
from langchain_community.agent_toolkits import O365Toolkit
toolkit = | O365Toolkit() | langchain_community.agent_toolkits.O365Toolkit |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet clearml')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pandas')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet textstat')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet spacy')
get_ipython().system('python -m spacy download en_core_web_sm')
import os
os.environ["CLEARML_API_ACCESS_KEY"] = ""
os.environ["CLEARML_API_SECRET_KEY"] = ""
os.environ["OPENAI_API_KEY"] = ""
os.environ["SERPAPI_API_KEY"] = ""
from langchain.callbacks import ClearMLCallbackHandler
from langchain.callbacks import StdOutCallbackHandler
from langchain_openai import OpenAI
clearml_callback = ClearMLCallbackHandler(
task_type="inference",
project_name="langchain_callback_demo",
task_name="llm",
tags=["test"],
visualize=True,
complexity_metrics=True,
stream_logs=True,
)
callbacks = [StdOutCallbackHandler(), clearml_callback]
llm = OpenAI(temperature=0, callbacks=callbacks)
llm_result = llm.generate(["Tell me a joke", "Tell me a poem"] * 3)
clearml_callback.flush_tracker(langchain_asset=llm, name="simple_sequential")
from langchain.agents import AgentType, initialize_agent, load_tools
tools = | load_tools(["serpapi", "llm-math"], llm=llm, callbacks=callbacks) | langchain.agents.load_tools |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet airbyte-source-hubspot')
from langchain_community.document_loaders.airbyte import AirbyteHubspotLoader
config = {
}
loader = AirbyteHubspotLoader(
config=config, stream_name="products"
) # check the documentation linked above for a list of all streams
docs = loader.load()
docs_iterator = loader.lazy_load()
from langchain.docstore.document import Document
def handle_record(record, id):
return | Document(page_content=record.data["title"], metadata=record.data) | langchain.docstore.document.Document |
get_ipython().system(' pip install -U langchain openai chromadb langchain-experimental # (newest versions required for multi-modal)')
get_ipython().system(' pip install "unstructured[all-docs]==0.10.19" pillow pydantic lxml pillow matplotlib tiktoken open_clip_torch torch')
path = "/Users/rlm/Desktop/cpi/"
from langchain_community.document_loaders import PyPDFLoader
loader = PyPDFLoader(path + "cpi.pdf")
pdf_pages = loader.load()
from langchain_text_splitters import RecursiveCharacterTextSplitter
text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=0)
all_splits_pypdf = text_splitter.split_documents(pdf_pages)
all_splits_pypdf_texts = [d.page_content for d in all_splits_pypdf]
from unstructured.partition.pdf import partition_pdf
raw_pdf_elements = partition_pdf(
filename=path + "cpi.pdf",
extract_images_in_pdf=True,
infer_table_structure=True,
chunking_strategy="by_title",
max_characters=4000,
new_after_n_chars=3800,
combine_text_under_n_chars=2000,
image_output_dir_path=path,
)
tables = []
texts = []
for element in raw_pdf_elements:
if "unstructured.documents.elements.Table" in str(type(element)):
tables.append(str(element))
elif "unstructured.documents.elements.CompositeElement" in str(type(element)):
texts.append(str(element))
from langchain_community.vectorstores import Chroma
from langchain_openai import OpenAIEmbeddings
baseline = Chroma.from_texts(
texts=all_splits_pypdf_texts,
collection_name="baseline",
embedding=OpenAIEmbeddings(),
)
retriever_baseline = baseline.as_retriever()
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
prompt_text = """You are an assistant tasked with summarizing tables and text for retrieval. \
These summaries will be embedded and used to retrieve the raw text or table elements. \
Give a concise summary of the table or text that is well optimized for retrieval. Table or text: {element} """
prompt = ChatPromptTemplate.from_template(prompt_text)
model = ChatOpenAI(temperature=0, model="gpt-4")
summarize_chain = {"element": lambda x: x} | prompt | model | StrOutputParser()
text_summaries = summarize_chain.batch(texts, {"max_concurrency": 5})
table_summaries = summarize_chain.batch(tables, {"max_concurrency": 5})
import base64
import io
import os
from io import BytesIO
from langchain_core.messages import HumanMessage
from PIL import Image
def encode_image(image_path):
"""Getting the base64 string"""
with open(image_path, "rb") as image_file:
return base64.b64encode(image_file.read()).decode("utf-8")
def image_summarize(img_base64, prompt):
"""Image summary"""
chat = ChatOpenAI(model="gpt-4-vision-preview", max_tokens=1024)
msg = chat.invoke(
[
HumanMessage(
content=[
{"type": "text", "text": prompt},
{
"type": "image_url",
"image_url": {"url": f"data:image/jpeg;base64,{img_base64}"},
},
]
)
]
)
return msg.content
img_base64_list = []
image_summaries = []
prompt = """You are an assistant tasked with summarizing images for retrieval. \
These summaries will be embedded and used to retrieve the raw image. \
Give a concise summary of the image that is well optimized for retrieval."""
for img_file in sorted(os.listdir(path)):
if img_file.endswith(".jpg"):
img_path = os.path.join(path, img_file)
base64_image = encode_image(img_path)
img_base64_list.append(base64_image)
image_summaries.append(image_summarize(base64_image, prompt))
import uuid
from base64 import b64decode
from langchain.retrievers.multi_vector import MultiVectorRetriever
from langchain.storage import InMemoryStore
from langchain_core.documents import Document
def create_multi_vector_retriever(
vectorstore, text_summaries, texts, table_summaries, tables, image_summaries, images
):
store = InMemoryStore()
id_key = "doc_id"
retriever = MultiVectorRetriever(
vectorstore=vectorstore,
docstore=store,
id_key=id_key,
)
def add_documents(retriever, doc_summaries, doc_contents):
doc_ids = [str(uuid.uuid4()) for _ in doc_contents]
summary_docs = [
Document(page_content=s, metadata={id_key: doc_ids[i]})
for i, s in enumerate(doc_summaries)
]
retriever.vectorstore.add_documents(summary_docs)
retriever.docstore.mset(list(zip(doc_ids, doc_contents)))
if text_summaries:
add_documents(retriever, text_summaries, texts)
if table_summaries:
add_documents(retriever, table_summaries, tables)
if image_summaries:
add_documents(retriever, image_summaries, images)
return retriever
multi_vector_img = Chroma(
collection_name="multi_vector_img", embedding_function=OpenAIEmbeddings()
)
retriever_multi_vector_img = create_multi_vector_retriever(
multi_vector_img,
text_summaries,
texts,
table_summaries,
tables,
image_summaries,
img_base64_list,
)
query = "What percentage of CPI is dedicated to Housing, and how does it compare to the combined percentage of Medical Care, Apparel, and Other Goods and Services?"
suffix_for_images = " Include any pie charts, graphs, or tables."
docs = retriever_multi_vector_img.get_relevant_documents(query + suffix_for_images)
from IPython.display import HTML, display
def plt_img_base64(img_base64):
image_html = f'<img src="data:image/jpeg;base64,{img_base64}" />'
display(HTML(image_html))
plt_img_base64(docs[1])
multi_vector_text = Chroma(
collection_name="multi_vector_text", embedding_function=OpenAIEmbeddings()
)
retriever_multi_vector_img_summary = create_multi_vector_retriever(
multi_vector_text,
text_summaries,
texts,
table_summaries,
tables,
image_summaries,
image_summaries,
)
from langchain_experimental.open_clip import OpenCLIPEmbeddings
multimodal_embd = Chroma(
collection_name="multimodal_embd", embedding_function=OpenCLIPEmbeddings()
)
image_uris = sorted(
[
os.path.join(path, image_name)
for image_name in os.listdir(path)
if image_name.endswith(".jpg")
]
)
if image_uris:
multimodal_embd.add_images(uris=image_uris)
if texts:
multimodal_embd.add_texts(texts=texts)
if tables:
multimodal_embd.add_texts(texts=tables)
retriever_multimodal_embd = multimodal_embd.as_retriever()
from operator import itemgetter
from langchain_core.runnables import RunnablePassthrough
template = """Answer the question based only on the following context, which can include text and tables:
{context}
Question: {question}
"""
rag_prompt_text = | ChatPromptTemplate.from_template(template) | langchain_core.prompts.ChatPromptTemplate.from_template |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-community langchainhub langchain-openai faiss-cpu')
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
texts = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = FAISS.from_documents(texts, embeddings)
retriever = db.as_retriever()
from langchain.tools.retriever import create_retriever_tool
tool = create_retriever_tool(
retriever,
"search_state_of_union",
"Searches and returns excerpts from the 2022 State of the Union.",
)
tools = [tool]
from langchain import hub
prompt = | hub.pull("hwchase17/openai-tools-agent") | langchain.hub.pull |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain.model_laboratory import ModelLaboratory
from langchain.prompts import PromptTemplate
from langchain_community.llms import Cohere, HuggingFaceHub
from langchain_openai import OpenAI
import getpass
import os
os.environ["COHERE_API_KEY"] = getpass.getpass("Cohere API Key:")
os.environ["OPENAI_API_KEY"] = getpass.getpass("Open API Key:")
os.environ["HUGGINGFACEHUB_API_TOKEN"] = getpass.getpass("Hugging Face API Key:")
llms = [
OpenAI(temperature=0),
Cohere(temperature=0),
HuggingFaceHub(repo_id="google/flan-t5-xl", model_kwargs={"temperature": 1}),
]
model_lab = ModelLaboratory.from_llms(llms)
model_lab.compare("What color is a flamingo?")
prompt = PromptTemplate(
template="What is the capital of {state}?", input_variables=["state"]
)
model_lab_with_prompt = ModelLaboratory.from_llms(llms, prompt=prompt)
model_lab_with_prompt.compare("New York")
from langchain.chains import SelfAskWithSearchChain
from langchain_community.utilities import SerpAPIWrapper
open_ai_llm = OpenAI(temperature=0)
search = | SerpAPIWrapper() | langchain_community.utilities.SerpAPIWrapper |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet neo4j')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-openai')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet tiktoken')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
from langchain.docstore.document import Document
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import Neo4jVector
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
url = "bolt://localhost:7687"
username = "neo4j"
password = "pleaseletmein"
db = Neo4jVector.from_documents(
docs, OpenAIEmbeddings(), url=url, username=username, password=password
)
query = "What did the president say about Ketanji Brown Jackson"
docs_with_score = db.similarity_search_with_score(query, k=2)
for doc, score in docs_with_score:
print("-" * 80)
print("Score: ", score)
print(doc.page_content)
print("-" * 80)
index_name = "vector" # default index name
store = Neo4jVector.from_existing_index(
| OpenAIEmbeddings() | langchain_openai.OpenAIEmbeddings |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet scikit-learn')
from langchain_community.retrievers import TFIDFRetriever
retriever = TFIDFRetriever.from_texts(["foo", "bar", "world", "hello", "foo bar"])
from langchain_core.documents import Document
retriever = TFIDFRetriever.from_documents(
[
| Document(page_content="foo") | langchain_core.documents.Document |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet hdbcli')
import os
from hdbcli import dbapi
connection = dbapi.connect(
address=os.environ.get("HANA_DB_ADDRESS"),
port=os.environ.get("HANA_DB_PORT"),
user=os.environ.get("HANA_DB_USER"),
password=os.environ.get("HANA_DB_PASSWORD"),
autocommit=True,
sslValidateCertificate=False,
)
from langchain.docstore.document import Document
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores.hanavector import HanaDB
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
text_documents = | TextLoader("../../modules/state_of_the_union.txt") | langchain_community.document_loaders.TextLoader |
def pretty_print_docs(docs):
print(
f"\n{'-' * 100}\n".join(
[f"Document {i+1}:\n\n" + d.page_content for i, d in enumerate(docs)]
)
)
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
documents = TextLoader("../../state_of_the_union.txt").load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
texts = text_splitter.split_documents(documents)
retriever = FAISS.from_documents(texts, OpenAIEmbeddings()).as_retriever()
docs = retriever.get_relevant_documents(
"What did the president say about Ketanji Brown Jackson"
)
pretty_print_docs(docs)
from langchain.retrievers import ContextualCompressionRetriever
from langchain.retrievers.document_compressors import LLMChainExtractor
from langchain_openai import OpenAI
llm = | OpenAI(temperature=0) | langchain_openai.OpenAI |
meals = [
"Beef Enchiladas with Feta cheese. Mexican-Greek fusion",
"Chicken Flatbreads with red sauce. Italian-Mexican fusion",
"Veggie sweet potato quesadillas with vegan cheese",
"One-Pan Tortelonni bake with peppers and onions",
]
from langchain_openai import OpenAI
llm = OpenAI(model="gpt-3.5-turbo-instruct")
from langchain.prompts import PromptTemplate
PROMPT_TEMPLATE = """Here is the description of a meal: "{meal}".
Embed the meal into the given text: "{text_to_personalize}".
Prepend a personalized message including the user's name "{user}"
and their preference "{preference}".
Make it sound good.
"""
PROMPT = PromptTemplate(
input_variables=["meal", "text_to_personalize", "user", "preference"],
template=PROMPT_TEMPLATE,
)
import langchain_experimental.rl_chain as rl_chain
chain = rl_chain.PickBest.from_llm(llm=llm, prompt=PROMPT)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs \
believe you will love it!",
)
print(response["response"])
for _ in range(5):
try:
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
except Exception as e:
print(e)
print(response["response"])
print()
scoring_criteria_template = (
"Given {preference} rank how good or bad this selection is {meal}"
)
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=rl_chain.AutoSelectionScorer(
llm=llm, scoring_criteria_template_str=scoring_criteria_template
),
)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
print(response["response"])
selection_metadata = response["selection_metadata"]
print(
f"selected index: {selection_metadata.selected.index}, score: {selection_metadata.selected.score}"
)
class CustomSelectionScorer(rl_chain.SelectionScorer):
def score_response(
self, inputs, llm_response: str, event: rl_chain.PickBestEvent
) -> float:
print(event.based_on)
print(event.to_select_from)
selected_meal = event.to_select_from["meal"][event.selected.index]
print(f"selected meal: {selected_meal}")
if "Tom" in event.based_on["user"]:
if "Vegetarian" in event.based_on["preference"]:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 0.0
else:
return 1.0
else:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 1.0
else:
return 0.0
else:
raise NotImplementedError("I don't know how to score this user")
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
class CustomSelectionScorer(rl_chain.SelectionScorer):
def score_preference(self, preference, selected_meal):
if "Vegetarian" in preference:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 0.0
else:
return 1.0
else:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 1.0
else:
return 0.0
def score_response(
self, inputs, llm_response: str, event: rl_chain.PickBestEvent
) -> float:
selected_meal = event.to_select_from["meal"][event.selected.index]
if "Tom" in event.based_on["user"]:
return self.score_preference(event.based_on["preference"], selected_meal)
elif "Anna" in event.based_on["user"]:
return self.score_preference(event.based_on["preference"], selected_meal)
else:
raise NotImplementedError("I don't know how to score this user")
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
metrics_step=5,
metrics_window_size=5, # rolling window average
)
random_chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
metrics_step=5,
metrics_window_size=5, # rolling window average
policy=rl_chain.PickBestRandomPolicy, # set the random policy instead of default
)
for _ in range(20):
try:
chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
random_chain.run(
meal=rl_chain.ToSelectFrom(meals),
user= | rl_chain.BasedOn("Tom") | langchain_experimental.rl_chain.BasedOn |
import os
from langchain.chains import ConversationalRetrievalChain
from langchain_community.vectorstores import Vectara
from langchain_openai import OpenAI
from langchain_community.document_loaders import TextLoader
loader = TextLoader("state_of_the_union.txt")
documents = loader.load()
vectara = | Vectara.from_documents(documents, embedding=None) | langchain_community.vectorstores.Vectara.from_documents |
get_ipython().system('pip install langchain lark openai elasticsearch pandas')
import pandas as pd
details = (
pd.read_csv("~/Downloads/archive/Hotel_details.csv")
.drop_duplicates(subset="hotelid")
.set_index("hotelid")
)
attributes = pd.read_csv(
"~/Downloads/archive/Hotel_Room_attributes.csv", index_col="id"
)
price = pd.read_csv("~/Downloads/archive/hotels_RoomPrice.csv", index_col="id")
latest_price = price.drop_duplicates(subset="refid", keep="last")[
[
"hotelcode",
"roomtype",
"onsiterate",
"roomamenities",
"maxoccupancy",
"mealinclusiontype",
]
]
latest_price["ratedescription"] = attributes.loc[latest_price.index]["ratedescription"]
latest_price = latest_price.join(
details[["hotelname", "city", "country", "starrating"]], on="hotelcode"
)
latest_price = latest_price.rename({"ratedescription": "roomdescription"}, axis=1)
latest_price["mealsincluded"] = ~latest_price["mealinclusiontype"].isnull()
latest_price.pop("hotelcode")
latest_price.pop("mealinclusiontype")
latest_price = latest_price.reset_index(drop=True)
latest_price.head()
from langchain_openai import ChatOpenAI
model = ChatOpenAI(model="gpt-4")
res = model.predict(
"Below is a table with information about hotel rooms. "
"Return a JSON list with an entry for each column. Each entry should have "
'{"name": "column name", "description": "column description", "type": "column data type"}'
f"\n\n{latest_price.head()}\n\nJSON:\n"
)
import json
attribute_info = json.loads(res)
attribute_info
latest_price.nunique()[latest_price.nunique() < 40]
attribute_info[-2][
"description"
] += f". Valid values are {sorted(latest_price['starrating'].value_counts().index.tolist())}"
attribute_info[3][
"description"
] += f". Valid values are {sorted(latest_price['maxoccupancy'].value_counts().index.tolist())}"
attribute_info[-3][
"description"
] += f". Valid values are {sorted(latest_price['country'].value_counts().index.tolist())}"
attribute_info
from langchain.chains.query_constructor.base import (
get_query_constructor_prompt,
load_query_constructor_runnable,
)
doc_contents = "Detailed description of a hotel room"
prompt = get_query_constructor_prompt(doc_contents, attribute_info)
print(prompt.format(query="{query}"))
chain = load_query_constructor_runnable(
ChatOpenAI(model="gpt-3.5-turbo", temperature=0), doc_contents, attribute_info
)
chain.invoke({"query": "I want a hotel in Southern Europe and my budget is 200 bucks."})
chain.invoke(
{
"query": "Find a 2-person room in Vienna or London, preferably with meals included and AC"
}
)
attribute_info[-3][
"description"
] += ". NOTE: Only use the 'eq' operator if a specific country is mentioned. If a region is mentioned, include all relevant countries in filter."
chain = load_query_constructor_runnable(
ChatOpenAI(model="gpt-3.5-turbo", temperature=0),
doc_contents,
attribute_info,
)
chain.invoke({"query": "I want a hotel in Southern Europe and my budget is 200 bucks."})
content_attr = ["roomtype", "roomamenities", "roomdescription", "hotelname"]
doc_contents = "A detailed description of a hotel room, including information about the room type and room amenities."
filter_attribute_info = tuple(
ai for ai in attribute_info if ai["name"] not in content_attr
)
chain = load_query_constructor_runnable(
ChatOpenAI(model="gpt-3.5-turbo", temperature=0),
doc_contents,
filter_attribute_info,
)
chain.invoke(
{
"query": "Find a 2-person room in Vienna or London, preferably with meals included and AC"
}
)
examples = [
(
"I want a hotel in the Balkans with a king sized bed and a hot tub. Budget is $300 a night",
{
"query": "king-sized bed, hot tub",
"filter": 'and(in("country", ["Bulgaria", "Greece", "Croatia", "Serbia"]), lte("onsiterate", 300))',
},
),
(
"A room with breakfast included for 3 people, at a Hilton",
{
"query": "Hilton",
"filter": 'and(eq("mealsincluded", true), gte("maxoccupancy", 3))',
},
),
]
prompt = get_query_constructor_prompt(
doc_contents, filter_attribute_info, examples=examples
)
print(prompt.format(query="{query}"))
chain = load_query_constructor_runnable(
ChatOpenAI(model="gpt-3.5-turbo", temperature=0),
doc_contents,
filter_attribute_info,
examples=examples,
)
chain.invoke(
{
"query": "Find a 2-person room in Vienna or London, preferably with meals included and AC"
}
)
chain.invoke(
{
"query": "I want to stay somewhere highly rated along the coast. I want a room with a patio and a fireplace."
}
)
chain = load_query_constructor_runnable(
| ChatOpenAI(model="gpt-3.5-turbo", temperature=0) | langchain_openai.ChatOpenAI |
get_ipython().run_cell_magic('writefile', 'whatsapp_chat.txt', "[8/15/23, 9:12:33 AM] Dr. Feather: \u200eMessages and calls are end-to-end encrypted. No one outside of this chat, not even WhatsApp, can read or listen to them.\n[8/15/23, 9:12:43 AM] Dr. Feather: I spotted a rare Hyacinth Macaw yesterday in the Amazon Rainforest. Such a magnificent creature!\n\u200e[8/15/23, 9:12:48 AM] Dr. Feather: \u200eimage omitted\n[8/15/23, 9:13:15 AM] Jungle Jane: That's stunning! Were you able to observe its behavior?\n\u200e[8/15/23, 9:13:23 AM] Dr. Feather: \u200eimage omitted\n[8/15/23, 9:14:02 AM] Dr. Feather: Yes, it seemed quite social with other macaws. They're known for their playful nature.\n[8/15/23, 9:14:15 AM] Jungle Jane: How's the research going on parrot communication?\n\u200e[8/15/23, 9:14:30 AM] Dr. Feather: \u200eimage omitted\n[8/15/23, 9:14:50 AM] Dr. Feather: It's progressing well. We're learning so much about how they use sound and color to communicate.\n[8/15/23, 9:15:10 AM] Jungle Jane: That's fascinating! Can't wait to read your paper on it.\n[8/15/23, 9:15:20 AM] Dr. Feather: Thank you! I'll send you a draft soon.\n[8/15/23, 9:25:16 PM] Jungle Jane: Looking forward to it! Keep up the great work.\n")
from langchain_community.chat_loaders.whatsapp import WhatsAppChatLoader
loader = WhatsAppChatLoader(
path="./whatsapp_chat.txt",
)
from typing import List
from langchain_community.chat_loaders.base import ChatSession
from langchain_community.chat_loaders.utils import (
map_ai_messages,
merge_chat_runs,
)
raw_messages = loader.lazy_load()
merged_messages = merge_chat_runs(raw_messages)
messages: List[ChatSession] = list(
| map_ai_messages(merged_messages, sender="Dr. Feather") | langchain_community.chat_loaders.utils.map_ai_messages |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet sagemaker')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-openai')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet google-search-results')
import os
os.environ["OPENAI_API_KEY"] = "<ADD-KEY-HERE>"
os.environ["SERPAPI_API_KEY"] = "<ADD-KEY-HERE>"
from langchain.agents import initialize_agent, load_tools
from langchain.callbacks import SageMakerCallbackHandler
from langchain.chains import LLMChain, SimpleSequentialChain
from langchain.prompts import PromptTemplate
from langchain_openai import OpenAI
from sagemaker.analytics import ExperimentAnalytics
from sagemaker.experiments.run import Run
from sagemaker.session import Session
HPARAMS = {
"temperature": 0.1,
"model_name": "gpt-3.5-turbo-instruct",
}
BUCKET_NAME = None
EXPERIMENT_NAME = "langchain-sagemaker-tracker"
session = Session(default_bucket=BUCKET_NAME)
RUN_NAME = "run-scenario-1"
PROMPT_TEMPLATE = "tell me a joke about {topic}"
INPUT_VARIABLES = {"topic": "fish"}
with Run(
experiment_name=EXPERIMENT_NAME, run_name=RUN_NAME, sagemaker_session=session
) as run:
sagemaker_callback = SageMakerCallbackHandler(run)
llm = OpenAI(callbacks=[sagemaker_callback], **HPARAMS)
prompt = PromptTemplate.from_template(template=PROMPT_TEMPLATE)
chain = LLMChain(llm=llm, prompt=prompt, callbacks=[sagemaker_callback])
chain.run(**INPUT_VARIABLES)
sagemaker_callback.flush_tracker()
RUN_NAME = "run-scenario-2"
PROMPT_TEMPLATE_1 = """You are a playwright. Given the title of play, it is your job to write a synopsis for that title.
Title: {title}
Playwright: This is a synopsis for the above play:"""
PROMPT_TEMPLATE_2 = """You are a play critic from the New York Times. Given the synopsis of play, it is your job to write a review for that play.
Play Synopsis: {synopsis}
Review from a New York Times play critic of the above play:"""
INPUT_VARIABLES = {
"input": "documentary about good video games that push the boundary of game design"
}
with Run(
experiment_name=EXPERIMENT_NAME, run_name=RUN_NAME, sagemaker_session=session
) as run:
sagemaker_callback = SageMakerCallbackHandler(run)
prompt_template1 = PromptTemplate.from_template(template=PROMPT_TEMPLATE_1)
prompt_template2 = PromptTemplate.from_template(template=PROMPT_TEMPLATE_2)
llm = OpenAI(callbacks=[sagemaker_callback], **HPARAMS)
chain1 = LLMChain(llm=llm, prompt=prompt_template1, callbacks=[sagemaker_callback])
chain2 = LLMChain(llm=llm, prompt=prompt_template2, callbacks=[sagemaker_callback])
overall_chain = SimpleSequentialChain(
chains=[chain1, chain2], callbacks=[sagemaker_callback]
)
overall_chain.run(**INPUT_VARIABLES)
sagemaker_callback.flush_tracker()
RUN_NAME = "run-scenario-3"
PROMPT_TEMPLATE = "Who is the oldest person alive? And what is their current age raised to the power of 1.51?"
with Run(
experiment_name=EXPERIMENT_NAME, run_name=RUN_NAME, sagemaker_session=session
) as run:
sagemaker_callback = | SageMakerCallbackHandler(run) | langchain.callbacks.SageMakerCallbackHandler |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet weaviate-client')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
WEAVIATE_URL = getpass.getpass("WEAVIATE_URL:")
os.environ["WEAVIATE_API_KEY"] = getpass.getpass("WEAVIATE_API_KEY:")
WEAVIATE_API_KEY = os.environ["WEAVIATE_API_KEY"]
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import Weaviate
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = | Weaviate.from_documents(docs, embeddings, weaviate_url=WEAVIATE_URL, by_text=False) | langchain_community.vectorstores.Weaviate.from_documents |
from langchain.chains import LLMMathChain
from langchain_openai import OpenAI
llm = | OpenAI(temperature=0) | langchain_openai.OpenAI |
get_ipython().system(' nomic login')
get_ipython().system(' nomic login token')
get_ipython().system(' pip install -U langchain-nomic langchain_community tiktoken langchain-openai chromadb langchain')
import os
os.environ["LANGCHAIN_TRACING_V2"] = "true"
os.environ["LANGCHAIN_ENDPOINT"] = "https://api.smith.langchain.com"
os.environ["LANGCHAIN_API_KEY"] = "api_key"
from langchain_community.document_loaders import WebBaseLoader
urls = [
"https://lilianweng.github.io/posts/2023-06-23-agent/",
"https://lilianweng.github.io/posts/2023-03-15-prompt-engineering/",
"https://lilianweng.github.io/posts/2023-10-25-adv-attack-llm/",
]
docs = [WebBaseLoader(url).load() for url in urls]
docs_list = [item for sublist in docs for item in sublist]
from langchain_text_splitters import CharacterTextSplitter
text_splitter = CharacterTextSplitter.from_tiktoken_encoder(
chunk_size=7500, chunk_overlap=100
)
doc_splits = text_splitter.split_documents(docs_list)
import tiktoken
encoding = tiktoken.get_encoding("cl100k_base")
encoding = tiktoken.encoding_for_model("gpt-3.5-turbo")
for d in doc_splits:
print("The document is %s tokens" % len(encoding.encode(d.page_content)))
import os
from langchain_community.vectorstores import Chroma
from langchain_core.output_parsers import StrOutputParser
from langchain_core.runnables import RunnableLambda, RunnablePassthrough
from langchain_nomic import NomicEmbeddings
from langchain_nomic.embeddings import NomicEmbeddings
vectorstore = Chroma.from_documents(
documents=doc_splits,
collection_name="rag-chroma",
embedding= | NomicEmbeddings(model="nomic-embed-text-v1") | langchain_nomic.embeddings.NomicEmbeddings |
from langchain_community.document_loaders import IFixitLoader
loader = | IFixitLoader("https://www.ifixit.com/Teardown/Banana+Teardown/811") | langchain_community.document_loaders.IFixitLoader |
SOURCE = "test" # @param {type:"Query"|"CollectionGroup"|"DocumentReference"|"string"}
get_ipython().run_line_magic('pip', 'install -upgrade --quiet langchain-google-datastore')
PROJECT_ID = "my-project-id" # @param {type:"string"}
get_ipython().system('gcloud config set project {PROJECT_ID}')
from google.colab import auth
auth.authenticate_user()
get_ipython().system('gcloud services enable datastore.googleapis.com')
from langchain_core.documents import Document
from langchain_google_datastore import DatastoreSaver
data = [Document(page_content="Hello, World!")]
saver = DatastoreSaver()
saver.upsert_documents(data)
saver = DatastoreSaver("Collection")
saver.upsert_documents(data)
doc_ids = ["AnotherCollection/doc_id", "foo/bar"]
saver = DatastoreSaver()
saver.upsert_documents(documents=data, document_ids=doc_ids)
from langchain_google_datastore import DatastoreLoader
loader_collection = DatastoreLoader("Collection")
loader_subcollection = | DatastoreLoader("Collection/doc/SubCollection") | langchain_google_datastore.DatastoreLoader |
import asyncio
import os
import nest_asyncio
import pandas as pd
from langchain.docstore.document import Document
from langchain_community.agent_toolkits.pandas.base import create_pandas_dataframe_agent
from langchain_experimental.autonomous_agents import AutoGPT
from langchain_openai import ChatOpenAI
nest_asyncio.apply()
llm = ChatOpenAI(model_name="gpt-4", temperature=1.0)
import os
from contextlib import contextmanager
from typing import Optional
from langchain.agents import tool
from langchain_community.tools.file_management.read import ReadFileTool
from langchain_community.tools.file_management.write import WriteFileTool
ROOT_DIR = "./data/"
@contextmanager
def pushd(new_dir):
"""Context manager for changing the current working directory."""
prev_dir = os.getcwd()
os.chdir(new_dir)
try:
yield
finally:
os.chdir(prev_dir)
@tool
def process_csv(
csv_file_path: str, instructions: str, output_path: Optional[str] = None
) -> str:
"""Process a CSV by with pandas in a limited REPL.\
Only use this after writing data to disk as a csv file.\
Any figures must be saved to disk to be viewed by the human.\
Instructions should be written in natural language, not code. Assume the dataframe is already loaded."""
with pushd(ROOT_DIR):
try:
df = pd.read_csv(csv_file_path)
except Exception as e:
return f"Error: {e}"
agent = create_pandas_dataframe_agent(llm, df, max_iterations=30, verbose=True)
if output_path is not None:
instructions += f" Save output to disk at {output_path}"
try:
result = agent.run(instructions)
return result
except Exception as e:
return f"Error: {e}"
async def async_load_playwright(url: str) -> str:
"""Load the specified URLs using Playwright and parse using BeautifulSoup."""
from bs4 import BeautifulSoup
from playwright.async_api import async_playwright
results = ""
async with async_playwright() as p:
browser = await p.chromium.launch(headless=True)
try:
page = await browser.new_page()
await page.goto(url)
page_source = await page.content()
soup = BeautifulSoup(page_source, "html.parser")
for script in soup(["script", "style"]):
script.extract()
text = soup.get_text()
lines = (line.strip() for line in text.splitlines())
chunks = (phrase.strip() for line in lines for phrase in line.split(" "))
results = "\n".join(chunk for chunk in chunks if chunk)
except Exception as e:
results = f"Error: {e}"
await browser.close()
return results
def run_async(coro):
event_loop = asyncio.get_event_loop()
return event_loop.run_until_complete(coro)
@tool
def browse_web_page(url: str) -> str:
"""Verbose way to scrape a whole webpage. Likely to cause issues parsing."""
return run_async(async_load_playwright(url))
from langchain.chains.qa_with_sources.loading import (
BaseCombineDocumentsChain,
load_qa_with_sources_chain,
)
from langchain.tools import BaseTool, DuckDuckGoSearchRun
from langchain_text_splitters import RecursiveCharacterTextSplitter
from pydantic import Field
def _get_text_splitter():
return RecursiveCharacterTextSplitter(
chunk_size=500,
chunk_overlap=20,
length_function=len,
)
class WebpageQATool(BaseTool):
name = "query_webpage"
description = (
"Browse a webpage and retrieve the information relevant to the question."
)
text_splitter: RecursiveCharacterTextSplitter = Field(
default_factory=_get_text_splitter
)
qa_chain: BaseCombineDocumentsChain
def _run(self, url: str, question: str) -> str:
"""Useful for browsing websites and scraping the text information."""
result = browse_web_page.run(url)
docs = [Document(page_content=result, metadata={"source": url})]
web_docs = self.text_splitter.split_documents(docs)
results = []
for i in range(0, len(web_docs), 4):
input_docs = web_docs[i : i + 4]
window_result = self.qa_chain(
{"input_documents": input_docs, "question": question},
return_only_outputs=True,
)
results.append(f"Response from window {i} - {window_result}")
results_docs = [
Document(page_content="\n".join(results), metadata={"source": url})
]
return self.qa_chain(
{"input_documents": results_docs, "question": question},
return_only_outputs=True,
)
async def _arun(self, url: str, question: str) -> str:
raise NotImplementedError
query_website_tool = WebpageQATool(qa_chain=load_qa_with_sources_chain(llm))
import faiss
from langchain.docstore import InMemoryDocstore
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
embeddings_model = | OpenAIEmbeddings() | langchain_openai.OpenAIEmbeddings |
from langchain.prompts.pipeline import PipelinePromptTemplate
from langchain.prompts.prompt import PromptTemplate
full_template = """{introduction}
{example}
{start}"""
full_prompt = PromptTemplate.from_template(full_template)
introduction_template = """You are impersonating {person}."""
introduction_prompt = PromptTemplate.from_template(introduction_template)
example_template = """Here's an example of an interaction:
Q: {example_q}
A: {example_a}"""
example_prompt = | PromptTemplate.from_template(example_template) | langchain.prompts.prompt.PromptTemplate.from_template |
from langchain.prompts.chat import (
ChatPromptTemplate,
HumanMessagePromptTemplate,
SystemMessagePromptTemplate,
)
from langchain_community.chat_models import JinaChat
from langchain_core.messages import HumanMessage, SystemMessage
chat = JinaChat(temperature=0)
messages = [
SystemMessage(
content="You are a helpful assistant that translates English to French."
),
HumanMessage(
content="Translate this sentence from English to French. I love programming."
),
]
chat(messages)
template = (
"You are a helpful assistant that translates {input_language} to {output_language}."
)
system_message_prompt = | SystemMessagePromptTemplate.from_template(template) | langchain.prompts.chat.SystemMessagePromptTemplate.from_template |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet elasticsearch == 7.11.0')
import getpass
import os
os.environ["QIANFAN_AK"] = getpass.getpass("Your Qianfan AK:")
os.environ["QIANFAN_SK"] = getpass.getpass("Your Qianfan SK:")
from langchain_community.document_loaders import TextLoader
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../../state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
from langchain_community.embeddings import QianfanEmbeddingsEndpoint
embeddings = | QianfanEmbeddingsEndpoint() | langchain_community.embeddings.QianfanEmbeddingsEndpoint |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet lark')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet libdeeplake')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
os.environ["ACTIVELOOP_TOKEN"] = getpass.getpass("Activeloop token:")
from langchain_community.vectorstores import DeepLake
from langchain_core.documents import Document
from langchain_openai import OpenAIEmbeddings
embeddings = OpenAIEmbeddings()
docs = [
Document(
page_content="A bunch of scientists bring back dinosaurs and mayhem breaks loose",
metadata={"year": 1993, "rating": 7.7, "genre": "science fiction"},
),
Document(
page_content="Leo DiCaprio gets lost in a dream within a dream within a dream within a ...",
metadata={"year": 2010, "director": "Christopher Nolan", "rating": 8.2},
),
Document(
page_content="A psychologist / detective gets lost in a series of dreams within dreams within dreams and Inception reused the idea",
metadata={"year": 2006, "director": "Satoshi Kon", "rating": 8.6},
),
Document(
page_content="A bunch of normal-sized women are supremely wholesome and some men pine after them",
metadata={"year": 2019, "director": "Greta Gerwig", "rating": 8.3},
),
Document(
page_content="Toys come alive and have a blast doing so",
metadata={"year": 1995, "genre": "animated"},
),
Document(
page_content="Three men walk into the Zone, three men walk out of the Zone",
metadata={
"year": 1979,
"director": "Andrei Tarkovsky",
"genre": "science fiction",
"rating": 9.9,
},
),
]
username_or_org = "<USERNAME_OR_ORG>"
vectorstore = DeepLake.from_documents(
docs,
embeddings,
dataset_path=f"hub://{username_or_org}/self_queery",
overwrite=True,
)
from langchain.chains.query_constructor.base import AttributeInfo
from langchain.retrievers.self_query.base import SelfQueryRetriever
from langchain_openai import OpenAI
metadata_field_info = [
AttributeInfo(
name="genre",
description="The genre of the movie",
type="string or list[string]",
),
AttributeInfo(
name="year",
description="The year the movie was released",
type="integer",
),
AttributeInfo(
name="director",
description="The name of the movie director",
type="string",
),
AttributeInfo(
name="rating", description="A 1-10 rating for the movie", type="float"
),
]
document_content_description = "Brief summary of a movie"
llm = | OpenAI(temperature=0) | langchain_openai.OpenAI |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet tiktoken langchain-openai python-dotenv datasets langchain deeplake beautifulsoup4 html2text ragas')
ORG_ID = "..."
import getpass
import os
from langchain.chains import RetrievalQA
from langchain.vectorstores.deeplake import DeepLake
from langchain_openai import OpenAIChat, OpenAIEmbeddings
os.environ["OPENAI_API_KEY"] = getpass.getpass("Enter your OpenAI API token: ")
os.environ["ACTIVELOOP_TOKEN"] = getpass.getpass(
"Enter your ActiveLoop API token: "
) # Get your API token from https://app.activeloop.ai, click on your profile picture in the top right corner, and select "API Tokens"
token = os.getenv("ACTIVELOOP_TOKEN")
openai_embeddings = OpenAIEmbeddings()
db = DeepLake(
dataset_path=f"hub://{ORG_ID}/deeplake-docs-deepmemory", # org_id stands for your username or organization from activeloop
embedding=openai_embeddings,
runtime={"tensor_db": True},
token=token,
read_only=False,
)
from urllib.parse import urljoin
import requests
from bs4 import BeautifulSoup
def get_all_links(url):
response = requests.get(url)
if response.status_code != 200:
print(f"Failed to retrieve the page: {url}")
return []
soup = BeautifulSoup(response.content, "html.parser")
links = [
urljoin(url, a["href"]) for a in soup.find_all("a", href=True) if a["href"]
]
return links
base_url = "https://docs.deeplake.ai/en/latest/"
all_links = get_all_links(base_url)
from langchain.document_loaders import AsyncHtmlLoader
loader = | AsyncHtmlLoader(all_links) | langchain.document_loaders.AsyncHtmlLoader |
import re
from typing import Union
from langchain.agents import (
AgentExecutor,
AgentOutputParser,
LLMSingleActionAgent,
Tool,
)
from langchain.chains import LLMChain
from langchain.prompts import StringPromptTemplate
from langchain_community.utilities import SerpAPIWrapper
from langchain_core.agents import AgentAction, AgentFinish
from langchain_openai import OpenAI
search = SerpAPIWrapper()
search_tool = Tool(
name="Search",
func=search.run,
description="useful for when you need to answer questions about current events",
)
def fake_func(inp: str) -> str:
return "foo"
fake_tools = [
Tool(
name=f"foo-{i}",
func=fake_func,
description=f"a silly function that you can use to get more information about the number {i}",
)
for i in range(99)
]
ALL_TOOLS = [search_tool] + fake_tools
from langchain_community.vectorstores import FAISS
from langchain_core.documents import Document
from langchain_openai import OpenAIEmbeddings
docs = [
Document(page_content=t.description, metadata={"index": i})
for i, t in enumerate(ALL_TOOLS)
]
vector_store = FAISS.from_documents(docs, OpenAIEmbeddings())
retriever = vector_store.as_retriever()
def get_tools(query):
docs = retriever.get_relevant_documents(query)
return [ALL_TOOLS[d.metadata["index"]] for d in docs]
get_tools("whats the weather?")
get_tools("whats the number 13?")
template = """Answer the following questions as best you can, but speaking as a pirate might speak. You have access to the following tools:
{tools}
Use the following format:
Question: the input question you must answer
Thought: you should always think about what to do
Action: the action to take, should be one of [{tool_names}]
Action Input: the input to the action
Observation: the result of the action
... (this Thought/Action/Action Input/Observation can repeat N times)
Thought: I now know the final answer
Final Answer: the final answer to the original input question
Begin! Remember to speak as a pirate when giving your final answer. Use lots of "Arg"s
Question: {input}
{agent_scratchpad}"""
from typing import Callable
class CustomPromptTemplate(StringPromptTemplate):
template: str
tools_getter: Callable
def format(self, **kwargs) -> str:
intermediate_steps = kwargs.pop("intermediate_steps")
thoughts = ""
for action, observation in intermediate_steps:
thoughts += action.log
thoughts += f"\nObservation: {observation}\nThought: "
kwargs["agent_scratchpad"] = thoughts
tools = self.tools_getter(kwargs["input"])
kwargs["tools"] = "\n".join(
[f"{tool.name}: {tool.description}" for tool in tools]
)
kwargs["tool_names"] = ", ".join([tool.name for tool in tools])
return self.template.format(**kwargs)
prompt = CustomPromptTemplate(
template=template,
tools_getter=get_tools,
input_variables=["input", "intermediate_steps"],
)
class CustomOutputParser(AgentOutputParser):
def parse(self, llm_output: str) -> Union[AgentAction, AgentFinish]:
if "Final Answer:" in llm_output:
return AgentFinish(
return_values={"output": llm_output.split("Final Answer:")[-1].strip()},
log=llm_output,
)
regex = r"Action\s*\d*\s*:(.*?)\nAction\s*\d*\s*Input\s*\d*\s*:[\s]*(.*)"
match = re.search(regex, llm_output, re.DOTALL)
if not match:
raise ValueError(f"Could not parse LLM output: `{llm_output}`")
action = match.group(1).strip()
action_input = match.group(2)
return AgentAction(
tool=action, tool_input=action_input.strip(" ").strip('"'), log=llm_output
)
output_parser = CustomOutputParser()
llm = | OpenAI(temperature=0) | langchain_openai.OpenAI |
from langchain.agents import AgentType, initialize_agent
from langchain.chains import LLMMathChain
from langchain_core.pydantic_v1 import BaseModel, Field
from langchain_core.tools import Tool
from langchain_openai import ChatOpenAI
get_ipython().run_line_magic('pip', 'install --upgrade --quiet numexpr')
llm = | ChatOpenAI(temperature=0, model="gpt-4") | langchain_openai.ChatOpenAI |
get_ipython().run_line_magic('pip', "install --upgrade --quiet faiss-gpu # For CUDA 7.5+ Supported GPU's.")
get_ipython().run_line_magic('pip', 'install --upgrade --quiet faiss-cpu # For CPU Installation')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../../extras/modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = await FAISS.afrom_documents(docs, embeddings)
query = "What did the president say about Ketanji Brown Jackson"
docs = await db.asimilarity_search(query)
print(docs[0].page_content)
docs_and_scores = await db.asimilarity_search_with_score(query)
docs_and_scores[0]
embedding_vector = await embeddings.aembed_query(query)
docs_and_scores = await db.asimilarity_search_by_vector(embedding_vector)
db.save_local("faiss_index")
new_db = FAISS.load_local("faiss_index", embeddings, asynchronous=True)
docs = await new_db.asimilarity_search(query)
docs[0]
from langchain_community.embeddings.huggingface import HuggingFaceEmbeddings
pkl = db.serialize_to_bytes() # serializes the faiss index
embeddings = HuggingFaceEmbeddings(model_name="all-MiniLM-L6-v2")
db = FAISS.deserialize_from_bytes(
embeddings=embeddings, serialized=pkl, asynchronous=True
) # Load the index
db1 = await FAISS.afrom_texts(["foo"], embeddings)
db2 = await FAISS.afrom_texts(["bar"], embeddings)
db1.docstore._dict
db2.docstore._dict
db1.merge_from(db2)
db1.docstore._dict
from langchain_core.documents import Document
list_of_documents = [
Document(page_content="foo", metadata=dict(page=1)),
Document(page_content="bar", metadata=dict(page=1)),
Document(page_content="foo", metadata=dict(page=2)),
Document(page_content="barbar", metadata=dict(page=2)),
Document(page_content="foo", metadata=dict(page=3)),
Document(page_content="bar burr", metadata=dict(page=3)),
Document(page_content="foo", metadata=dict(page=4)),
Document(page_content="bar bruh", metadata=dict(page=4)),
]
db = | FAISS.from_documents(list_of_documents, embeddings) | langchain_community.vectorstores.FAISS.from_documents |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pymysql')
from langchain.chains import RetrievalQA
from langchain_community.document_loaders import (
DirectoryLoader,
UnstructuredMarkdownLoader,
)
from langchain_community.vectorstores import StarRocks
from langchain_community.vectorstores.starrocks import StarRocksSettings
from langchain_openai import OpenAI, OpenAIEmbeddings
from langchain_text_splitters import TokenTextSplitter
update_vectordb = False
loader = DirectoryLoader(
"./docs", glob="**/*.md", loader_cls=UnstructuredMarkdownLoader
)
documents = loader.load()
text_splitter = TokenTextSplitter(chunk_size=400, chunk_overlap=50)
split_docs = text_splitter.split_documents(documents)
update_vectordb = True
split_docs[-20]
print("# docs = %d, # splits = %d" % (len(documents), len(split_docs)))
def gen_starrocks(update_vectordb, embeddings, settings):
if update_vectordb:
docsearch = StarRocks.from_documents(split_docs, embeddings, config=settings)
else:
docsearch = StarRocks(embeddings, settings)
return docsearch
embeddings = | OpenAIEmbeddings() | langchain_openai.OpenAIEmbeddings |
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass()
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = FAISS.from_documents(docs, embeddings)
query = "What did the president say about Ketanji Brown Jackson"
docs = db.similarity_search(query)
print(docs[0].page_content)
retriever = db.as_retriever()
docs = retriever.invoke(query)
print(docs[0].page_content)
docs_and_scores = db.similarity_search_with_score(query)
docs_and_scores[0]
embedding_vector = embeddings.embed_query(query)
docs_and_scores = db.similarity_search_by_vector(embedding_vector)
db.save_local("faiss_index")
new_db = FAISS.load_local("faiss_index", embeddings)
docs = new_db.similarity_search(query)
docs[0]
from langchain_community.embeddings.huggingface import HuggingFaceEmbeddings
pkl = db.serialize_to_bytes() # serializes the faiss
embeddings = HuggingFaceEmbeddings(model_name="all-MiniLM-L6-v2")
db = FAISS.deserialize_from_bytes(
embeddings=embeddings, serialized=pkl
) # Load the index
db1 = | FAISS.from_texts(["foo"], embeddings) | langchain_community.vectorstores.FAISS.from_texts |
get_ipython().run_line_magic('pip', "install --upgrade --quiet langchain-openai 'deeplake[enterprise]' tiktoken")
from langchain_community.vectorstores import DeepLake
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
activeloop_token = getpass.getpass("activeloop token:")
embeddings = OpenAIEmbeddings()
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
db = DeepLake(dataset_path="./my_deeplake/", embedding=embeddings, overwrite=True)
db.add_documents(docs)
query = "What did the president say about Ketanji Brown Jackson"
docs = db.similarity_search(query)
print(docs[0].page_content)
db = DeepLake(dataset_path="./my_deeplake/", embedding=embeddings, read_only=True)
docs = db.similarity_search(query)
from langchain.chains import RetrievalQA
from langchain_openai import OpenAIChat
qa = RetrievalQA.from_chain_type(
llm=OpenAIChat(model="gpt-3.5-turbo"),
chain_type="stuff",
retriever=db.as_retriever(),
)
query = "What did the president say about Ketanji Brown Jackson"
qa.run(query)
import random
for d in docs:
d.metadata["year"] = random.randint(2012, 2014)
db = DeepLake.from_documents(
docs, embeddings, dataset_path="./my_deeplake/", overwrite=True
)
db.similarity_search(
"What did the president say about Ketanji Brown Jackson",
filter={"metadata": {"year": 2013}},
)
db.similarity_search(
"What did the president say about Ketanji Brown Jackson?", distance_metric="cos"
)
db.max_marginal_relevance_search(
"What did the president say about Ketanji Brown Jackson?"
)
db.delete_dataset()
DeepLake.force_delete_by_path("./my_deeplake")
os.environ["ACTIVELOOP_TOKEN"] = activeloop_token
username = "<USERNAME_OR_ORG>" # your username on app.activeloop.ai
dataset_path = f"hub://{username}/langchain_testing_python" # could be also ./local/path (much faster locally), s3://bucket/path/to/dataset, gcs://path/to/dataset, etc.
docs = text_splitter.split_documents(documents)
embedding = OpenAIEmbeddings()
db = | DeepLake(dataset_path=dataset_path, embedding=embeddings, overwrite=True) | langchain_community.vectorstores.DeepLake |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain.evaluation import load_evaluator
from langchain_openai import ChatOpenAI
evaluator = load_evaluator("labeled_score_string", llm=ChatOpenAI(model="gpt-4"))
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dresser's third drawer.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
accuracy_criteria = {
"accuracy": """
Score 1: The answer is completely unrelated to the reference.
Score 3: The answer has minor relevance but does not align with the reference.
Score 5: The answer has moderate relevance but contains inaccuracies.
Score 7: The answer aligns with the reference but has minor errors or omissions.
Score 10: The answer is completely accurate and aligns perfectly with the reference."""
}
evaluator = load_evaluator(
"labeled_score_string",
criteria=accuracy_criteria,
llm=ChatOpenAI(model="gpt-4"),
)
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dresser's third drawer.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dresser.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
eval_result = evaluator.evaluate_strings(
prediction="You can find them in the dog's bed.",
reference="The socks are in the third drawer in the dresser",
input="Where are my socks?",
)
print(eval_result)
evaluator = load_evaluator(
"labeled_score_string",
criteria=accuracy_criteria,
llm= | ChatOpenAI(model="gpt-4") | langchain_openai.ChatOpenAI |
get_ipython().system('poetry run pip install dgml-utils==0.3.0 --upgrade --quiet')
import os
from langchain_community.document_loaders import DocugamiLoader
DOCUGAMI_API_KEY = os.environ.get("DOCUGAMI_API_KEY")
docset_id = "26xpy3aes7xp"
document_ids = ["d7jqdzcj50sj", "cgd1eacfkchw"]
loader = DocugamiLoader(docset_id=docset_id, document_ids=document_ids)
chunks = loader.load()
len(chunks)
loader.min_text_length = 64
loader.include_xml_tags = True
chunks = loader.load()
for chunk in chunks[:5]:
print(chunk)
get_ipython().system('poetry run pip install --upgrade langchain-openai tiktoken chromadb hnswlib')
loader = DocugamiLoader(docset_id="zo954yqy53wp")
chunks = loader.load()
for chunk in chunks:
stripped_metadata = chunk.metadata.copy()
for key in chunk.metadata:
if key not in ["name", "xpath", "id", "structure"]:
del stripped_metadata[key]
chunk.metadata = stripped_metadata
print(len(chunks))
from langchain.chains import RetrievalQA
from langchain_community.vectorstores.chroma import Chroma
from langchain_openai import OpenAI, OpenAIEmbeddings
embedding = OpenAIEmbeddings()
vectordb = Chroma.from_documents(documents=chunks, embedding=embedding)
retriever = vectordb.as_retriever()
qa_chain = RetrievalQA.from_chain_type(
llm=OpenAI(), chain_type="stuff", retriever=retriever, return_source_documents=True
)
qa_chain("What can tenants do with signage on their properties?")
chain_response = qa_chain("What is rentable area for the property owned by DHA Group?")
chain_response["result"] # correct answer should be 13,500 sq ft
chain_response["source_documents"]
loader = DocugamiLoader(docset_id="zo954yqy53wp")
loader.include_xml_tags = (
True # for additional semantics from the Docugami knowledge graph
)
chunks = loader.load()
print(chunks[0].metadata)
get_ipython().system('poetry run pip install --upgrade lark --quiet')
from langchain.chains.query_constructor.schema import AttributeInfo
from langchain.retrievers.self_query.base import SelfQueryRetriever
from langchain_community.vectorstores.chroma import Chroma
EXCLUDE_KEYS = ["id", "xpath", "structure"]
metadata_field_info = [
AttributeInfo(
name=key,
description=f"The {key} for this chunk",
type="string",
)
for key in chunks[0].metadata
if key.lower() not in EXCLUDE_KEYS
]
document_content_description = "Contents of this chunk"
llm = OpenAI(temperature=0)
vectordb = Chroma.from_documents(documents=chunks, embedding=embedding)
retriever = SelfQueryRetriever.from_llm(
llm, vectordb, document_content_description, metadata_field_info, verbose=True
)
qa_chain = RetrievalQA.from_chain_type(
llm=OpenAI(),
chain_type="stuff",
retriever=retriever,
return_source_documents=True,
verbose=True,
)
qa_chain(
"What is rentable area for the property owned by DHA Group?"
) # correct answer should be 13,500 sq ft
from typing import Dict, List
from langchain_community.document_loaders import DocugamiLoader
from langchain_core.documents import Document
loader = DocugamiLoader(docset_id="zo954yqy53wp")
loader.include_xml_tags = (
True # for additional semantics from the Docugami knowledge graph
)
loader.parent_hierarchy_levels = 3 # for expanded context
loader.max_text_length = (
1024 * 8
) # 8K chars are roughly 2K tokens (ref: https://help.openai.com/en/articles/4936856-what-are-tokens-and-how-to-count-them)
loader.include_project_metadata_in_doc_metadata = (
False # Not filtering on vector metadata, so remove to lighten the vectors
)
chunks: List[Document] = loader.load()
parents_by_id: Dict[str, Document] = {}
children_by_id: Dict[str, Document] = {}
for chunk in chunks:
chunk_id = chunk.metadata.get("id")
parent_chunk_id = chunk.metadata.get(loader.parent_id_key)
if not parent_chunk_id:
parents_by_id[chunk_id] = chunk
else:
children_by_id[chunk_id] = chunk
for id, chunk in list(children_by_id.items())[:5]:
parent_chunk_id = chunk.metadata.get(loader.parent_id_key)
if parent_chunk_id:
print(f"PARENT CHUNK {parent_chunk_id}: {parents_by_id[parent_chunk_id]}")
print(f"CHUNK {id}: {chunk}")
from langchain.retrievers.multi_vector import MultiVectorRetriever, SearchType
from langchain.storage import InMemoryStore
from langchain_community.vectorstores.chroma import Chroma
from langchain_openai import OpenAIEmbeddings
vectorstore = Chroma(collection_name="big2small", embedding_function= | OpenAIEmbeddings() | langchain_openai.OpenAIEmbeddings |
import re
from typing import Union
from langchain.agents import (
AgentExecutor,
AgentOutputParser,
LLMSingleActionAgent,
)
from langchain.chains import LLMChain
from langchain.prompts import StringPromptTemplate
from langchain_community.agent_toolkits import NLAToolkit
from langchain_community.tools.plugin import AIPlugin
from langchain_core.agents import AgentAction, AgentFinish
from langchain_openai import OpenAI
llm = OpenAI(temperature=0)
urls = [
"https://datasette.io/.well-known/ai-plugin.json",
"https://api.speak.com/.well-known/ai-plugin.json",
"https://www.wolframalpha.com/.well-known/ai-plugin.json",
"https://www.zapier.com/.well-known/ai-plugin.json",
"https://www.klarna.com/.well-known/ai-plugin.json",
"https://www.joinmilo.com/.well-known/ai-plugin.json",
"https://slack.com/.well-known/ai-plugin.json",
"https://schooldigger.com/.well-known/ai-plugin.json",
]
AI_PLUGINS = [AIPlugin.from_url(url) for url in urls]
from langchain_community.vectorstores import FAISS
from langchain_core.documents import Document
from langchain_openai import OpenAIEmbeddings
embeddings = OpenAIEmbeddings()
docs = [
Document(
page_content=plugin.description_for_model,
metadata={"plugin_name": plugin.name_for_model},
)
for plugin in AI_PLUGINS
]
vector_store = | FAISS.from_documents(docs, embeddings) | langchain_community.vectorstores.FAISS.from_documents |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet rank_bm25 > /dev/null')
from langchain.retrievers import BM25Retriever, EnsembleRetriever
from langchain_community.vectorstores import FAISS
from langchain_openai import OpenAIEmbeddings
doc_list_1 = [
"I like apples",
"I like oranges",
"Apples and oranges are fruits",
]
bm25_retriever = BM25Retriever.from_texts(
doc_list_1, metadatas=[{"source": 1}] * len(doc_list_1)
)
bm25_retriever.k = 2
doc_list_2 = [
"You like apples",
"You like oranges",
]
embedding = | OpenAIEmbeddings() | langchain_openai.OpenAIEmbeddings |
get_ipython().system(' pip install langchain unstructured[all-docs] pydantic lxml langchainhub')
get_ipython().system(' brew install tesseract')
get_ipython().system(' brew install poppler')
path = "/Users/rlm/Desktop/Papers/LLaMA2/"
from typing import Any
from pydantic import BaseModel
from unstructured.partition.pdf import partition_pdf
raw_pdf_elements = partition_pdf(
filename=path + "LLaMA2.pdf",
extract_images_in_pdf=False,
infer_table_structure=True,
chunking_strategy="by_title",
max_characters=4000,
new_after_n_chars=3800,
combine_text_under_n_chars=2000,
image_output_dir_path=path,
)
category_counts = {}
for element in raw_pdf_elements:
category = str(type(element))
if category in category_counts:
category_counts[category] += 1
else:
category_counts[category] = 1
unique_categories = set(category_counts.keys())
category_counts
class Element(BaseModel):
type: str
text: Any
categorized_elements = []
for element in raw_pdf_elements:
if "unstructured.documents.elements.Table" in str(type(element)):
categorized_elements.append(Element(type="table", text=str(element)))
elif "unstructured.documents.elements.CompositeElement" in str(type(element)):
categorized_elements.append(Element(type="text", text=str(element)))
table_elements = [e for e in categorized_elements if e.type == "table"]
print(len(table_elements))
text_elements = [e for e in categorized_elements if e.type == "text"]
print(len(text_elements))
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
prompt_text = """You are an assistant tasked with summarizing tables and text. \
Give a concise summary of the table or text. Table or text chunk: {element} """
prompt = ChatPromptTemplate.from_template(prompt_text)
model = ChatOpenAI(temperature=0, model="gpt-4")
summarize_chain = {"element": lambda x: x} | prompt | model | StrOutputParser()
tables = [i.text for i in table_elements]
table_summaries = summarize_chain.batch(tables, {"max_concurrency": 5})
texts = [i.text for i in text_elements]
text_summaries = summarize_chain.batch(texts, {"max_concurrency": 5})
import uuid
from langchain.retrievers.multi_vector import MultiVectorRetriever
from langchain.storage import InMemoryStore
from langchain_community.vectorstores import Chroma
from langchain_core.documents import Document
from langchain_openai import OpenAIEmbeddings
vectorstore = Chroma(collection_name="summaries", embedding_function=OpenAIEmbeddings())
store = InMemoryStore()
id_key = "doc_id"
retriever = MultiVectorRetriever(
vectorstore=vectorstore,
docstore=store,
id_key=id_key,
)
doc_ids = [str(uuid.uuid4()) for _ in texts]
summary_texts = [
Document(page_content=s, metadata={id_key: doc_ids[i]})
for i, s in enumerate(text_summaries)
]
retriever.vectorstore.add_documents(summary_texts)
retriever.docstore.mset(list(zip(doc_ids, texts)))
table_ids = [str(uuid.uuid4()) for _ in tables]
summary_tables = [
| Document(page_content=s, metadata={id_key: table_ids[i]}) | langchain_core.documents.Document |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet azureml-mlflow')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pandas')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet textstat')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet spacy')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-openai')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet google-search-results')
get_ipython().system('python -m spacy download en_core_web_sm')
import os
os.environ["MLFLOW_TRACKING_URI"] = ""
os.environ["OPENAI_API_KEY"] = ""
os.environ["SERPAPI_API_KEY"] = ""
from langchain.callbacks import MlflowCallbackHandler
from langchain_openai import OpenAI
"""Main function.
This function is used to try the callback handler.
Scenarios:
1. OpenAI LLM
2. Chain with multiple SubChains on multiple generations
3. Agent with Tools
"""
mlflow_callback = MlflowCallbackHandler()
llm = OpenAI(
model_name="gpt-3.5-turbo", temperature=0, callbacks=[mlflow_callback], verbose=True
)
llm_result = llm.generate(["Tell me a joke"])
mlflow_callback.flush_tracker(llm)
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
template = """You are a playwright. Given the title of play, it is your job to write a synopsis for that title.
Title: {title}
Playwright: This is a synopsis for the above play:"""
prompt_template = | PromptTemplate(input_variables=["title"], template=template) | langchain.prompts.PromptTemplate |
from langchain_community.utilities import DuckDuckGoSearchAPIWrapper
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_core.runnables import RunnablePassthrough
from langchain_openai import ChatOpenAI
template = """Answer the users question based only on the following context:
<context>
{context}
</context>
Question: {question}
"""
prompt = ChatPromptTemplate.from_template(template)
model = ChatOpenAI(temperature=0)
search = DuckDuckGoSearchAPIWrapper()
def retriever(query):
return search.run(query)
chain = (
{"context": retriever, "question": RunnablePassthrough()}
| prompt
| model
| StrOutputParser()
)
simple_query = "what is langchain?"
chain.invoke(simple_query)
distracted_query = "man that sam bankman fried trial was crazy! what is langchain?"
chain.invoke(distracted_query)
retriever(distracted_query)
template = """Provide a better search query for \
web search engine to answer the given question, end \
the queries with ’**’. Question: \
{x} Answer:"""
rewrite_prompt = | ChatPromptTemplate.from_template(template) | langchain_core.prompts.ChatPromptTemplate.from_template |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet predictionguard langchain')
import os
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.llms import PredictionGuard
os.environ["OPENAI_API_KEY"] = "<your OpenAI api key>"
os.environ["PREDICTIONGUARD_TOKEN"] = "<your Prediction Guard access token>"
pgllm = PredictionGuard(model="OpenAI-text-davinci-003")
pgllm("Tell me a joke")
template = """Respond to the following query based on the context.
Context: EVERY comment, DM + email suggestion has led us to this EXCITING announcement! 🎉 We have officially added TWO new candle subscription box options! 📦
Exclusive Candle Box - $80
Monthly Candle Box - $45 (NEW!)
Scent of The Month Box - $28 (NEW!)
Head to stories to get ALLL the deets on each box! 👆 BONUS: Save 50% on your first box with code 50OFF! 🎉
Query: {query}
Result: """
prompt = PromptTemplate.from_template(template)
pgllm(prompt.format(query="What kind of post is this?"))
pgllm = PredictionGuard(
model="OpenAI-text-davinci-003",
output={
"type": "categorical",
"categories": ["product announcement", "apology", "relational"],
},
)
pgllm(prompt.format(query="What kind of post is this?"))
pgllm = PredictionGuard(model="OpenAI-text-davinci-003")
template = """Question: {question}
Answer: Let's think step by step."""
prompt = PromptTemplate.from_template(template)
llm_chain = LLMChain(prompt=prompt, llm=pgllm, verbose=True)
question = "What NFL team won the Super Bowl in the year Justin Beiber was born?"
llm_chain.predict(question=question)
template = """Write a {adjective} poem about {subject}."""
prompt = PromptTemplate.from_template(template)
llm_chain = | LLMChain(prompt=prompt, llm=pgllm, verbose=True) | langchain.chains.LLMChain |
from langchain.indexes import SQLRecordManager, index
from langchain_core.documents import Document
from langchain_elasticsearch import ElasticsearchStore
from langchain_openai import OpenAIEmbeddings
collection_name = "test_index"
embedding = OpenAIEmbeddings()
vectorstore = ElasticsearchStore(
es_url="http://localhost:9200", index_name="test_index", embedding=embedding
)
namespace = f"elasticsearch/{collection_name}"
record_manager = SQLRecordManager(
namespace, db_url="sqlite:///record_manager_cache.sql"
)
record_manager.create_schema()
doc1 = Document(page_content="kitty", metadata={"source": "kitty.txt"})
doc2 = Document(page_content="doggy", metadata={"source": "doggy.txt"})
def _clear():
"""Hacky helper method to clear content. See the `full` mode section to to understand why it works."""
index([], record_manager, vectorstore, cleanup="full", source_id_key="source")
_clear()
index(
[doc1, doc1, doc1, doc1, doc1],
record_manager,
vectorstore,
cleanup=None,
source_id_key="source",
)
_clear()
index([doc1, doc2], record_manager, vectorstore, cleanup=None, source_id_key="source")
index([doc1, doc2], record_manager, vectorstore, cleanup=None, source_id_key="source")
_clear()
index(
[doc1, doc2],
record_manager,
vectorstore,
cleanup="incremental",
source_id_key="source",
)
index(
[doc1, doc2],
record_manager,
vectorstore,
cleanup="incremental",
source_id_key="source",
)
index([], record_manager, vectorstore, cleanup="incremental", source_id_key="source")
changed_doc_2 = Document(page_content="puppy", metadata={"source": "doggy.txt"})
index(
[changed_doc_2],
record_manager,
vectorstore,
cleanup="incremental",
source_id_key="source",
)
_clear()
all_docs = [doc1, doc2]
index(all_docs, record_manager, vectorstore, cleanup="full", source_id_key="source")
del all_docs[0]
all_docs
| index(all_docs, record_manager, vectorstore, cleanup="full", source_id_key="source") | langchain.indexes.index |
get_ipython().system(' pip install langchain unstructured[all-docs] pydantic lxml')
path = "/Users/rlm/Desktop/Papers/LLaVA/"
from typing import Any
from pydantic import BaseModel
from unstructured.partition.pdf import partition_pdf
raw_pdf_elements = partition_pdf(
filename=path + "LLaVA.pdf",
extract_images_in_pdf=True,
infer_table_structure=True,
chunking_strategy="by_title",
max_characters=4000,
new_after_n_chars=3800,
combine_text_under_n_chars=2000,
image_output_dir_path=path,
)
category_counts = {}
for element in raw_pdf_elements:
category = str(type(element))
if category in category_counts:
category_counts[category] += 1
else:
category_counts[category] = 1
unique_categories = set(category_counts.keys())
category_counts
class Element(BaseModel):
type: str
text: Any
categorized_elements = []
for element in raw_pdf_elements:
if "unstructured.documents.elements.Table" in str(type(element)):
categorized_elements.append(Element(type="table", text=str(element)))
elif "unstructured.documents.elements.CompositeElement" in str(type(element)):
categorized_elements.append(Element(type="text", text=str(element)))
table_elements = [e for e in categorized_elements if e.type == "table"]
print(len(table_elements))
text_elements = [e for e in categorized_elements if e.type == "text"]
print(len(text_elements))
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
prompt_text = """You are an assistant tasked with summarizing tables and text. \
Give a concise summary of the table or text. Table or text chunk: {element} """
prompt = ChatPromptTemplate.from_template(prompt_text)
model = ChatOpenAI(temperature=0, model="gpt-4")
summarize_chain = {"element": lambda x: x} | prompt | model | StrOutputParser()
texts = [i.text for i in text_elements]
text_summaries = summarize_chain.batch(texts, {"max_concurrency": 5})
tables = [i.text for i in table_elements]
table_summaries = summarize_chain.batch(tables, {"max_concurrency": 5})
get_ipython().run_cell_magic('bash', '', '\n# Define the directory containing the images\nIMG_DIR=~/Desktop/Papers/LLaVA/\n\n# Loop through each image in the directory\nfor img in "${IMG_DIR}"*.jpg; do\n # Extract the base name of the image without extension\n base_name=$(basename "$img" .jpg)\n\n # Define the output file name based on the image name\n output_file="${IMG_DIR}${base_name}.txt"\n\n # Execute the command and save the output to the defined output file\n /Users/rlm/Desktop/Code/llama.cpp/bin/llava -m ../models/llava-7b/ggml-model-q5_k.gguf --mmproj ../models/llava-7b/mmproj-model-f16.gguf --temp 0.1 -p "Describe the image in detail. Be specific about graphs, such as bar plots." --image "$img" > "$output_file"\n\ndone\n')
import glob
import os
file_paths = glob.glob(os.path.expanduser(os.path.join(path, "*.txt")))
img_summaries = []
for file_path in file_paths:
with open(file_path, "r") as file:
img_summaries.append(file.read())
logging_header = "clip_model_load: total allocated memory: 201.27 MB\n\n"
cleaned_img_summary = [s.split(logging_header, 1)[1].strip() for s in img_summaries]
import uuid
from langchain.retrievers.multi_vector import MultiVectorRetriever
from langchain.storage import InMemoryStore
from langchain_community.vectorstores import Chroma
from langchain_core.documents import Document
from langchain_openai import OpenAIEmbeddings
vectorstore = Chroma(collection_name="summaries", embedding_function=OpenAIEmbeddings())
store = InMemoryStore()
id_key = "doc_id"
retriever = MultiVectorRetriever(
vectorstore=vectorstore,
docstore=store,
id_key=id_key,
)
doc_ids = [str(uuid.uuid4()) for _ in texts]
summary_texts = [
Document(page_content=s, metadata={id_key: doc_ids[i]})
for i, s in enumerate(text_summaries)
]
retriever.vectorstore.add_documents(summary_texts)
retriever.docstore.mset(list(zip(doc_ids, texts)))
table_ids = [str(uuid.uuid4()) for _ in tables]
summary_tables = [
Document(page_content=s, metadata={id_key: table_ids[i]})
for i, s in enumerate(table_summaries)
]
retriever.vectorstore.add_documents(summary_tables)
retriever.docstore.mset(list(zip(table_ids, tables)))
img_ids = [str(uuid.uuid4()) for _ in cleaned_img_summary]
summary_img = [
Document(page_content=s, metadata={id_key: img_ids[i]})
for i, s in enumerate(cleaned_img_summary)
]
retriever.vectorstore.add_documents(summary_img)
retriever.docstore.mset(list(zip(img_ids, cleaned_img_summary)))
img_ids = [str(uuid.uuid4()) for _ in cleaned_img_summary]
summary_img = [
Document(page_content=s, metadata={id_key: img_ids[i]})
for i, s in enumerate(cleaned_img_summary)
]
retriever.vectorstore.add_documents(summary_img)
retriever.docstore.mset(
list(
zip(
img_ids,
)
)
)
tables[2]
table_summaries[2]
retriever.get_relevant_documents(
"What are results for LLaMA across across domains / subjects?"
)[1]
retriever.get_relevant_documents("Images / figures with playful and creative examples")[
1
]
from langchain_core.runnables import RunnablePassthrough
template = """Answer the question based only on the following context, which can include text and tables:
{context}
Question: {question}
"""
prompt = ChatPromptTemplate.from_template(template)
model = ChatOpenAI(temperature=0, model="gpt-4")
chain = (
{"context": retriever, "question": | RunnablePassthrough() | langchain_core.runnables.RunnablePassthrough |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pdfminer')
from langchain_community.document_loaders.image import UnstructuredImageLoader
loader = UnstructuredImageLoader("layout-parser-paper-fast.jpg")
data = loader.load()
data[0]
loader = | UnstructuredImageLoader("layout-parser-paper-fast.jpg", mode="elements") | langchain_community.document_loaders.image.UnstructuredImageLoader |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet playwright > /dev/null')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet lxml')
from langchain_community.agent_toolkits import PlayWrightBrowserToolkit
from langchain_community.tools.playwright.utils import (
create_async_playwright_browser, # A synchronous browser is available, though it isn't compatible with jupyter.\n", },
)
import nest_asyncio
nest_asyncio.apply()
async_browser = create_async_playwright_browser()
toolkit = | PlayWrightBrowserToolkit.from_browser(async_browser=async_browser) | langchain_community.agent_toolkits.PlayWrightBrowserToolkit.from_browser |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain_core.runnables import RunnableParallel, RunnablePassthrough
runnable = RunnableParallel(
passed=RunnablePassthrough(),
extra=RunnablePassthrough.assign(mult=lambda x: x["num"] * 3),
modified=lambda x: x["num"] + 1,
)
runnable.invoke({"num": 1})
from langchain_community.vectorstores import FAISS
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_core.runnables import RunnablePassthrough
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
vectorstore = FAISS.from_texts(
["harrison worked at kensho"], embedding=OpenAIEmbeddings()
)
retriever = vectorstore.as_retriever()
template = """Answer the question based only on the following context:
{context}
Question: {question}
"""
prompt = ChatPromptTemplate.from_template(template)
model = ChatOpenAI()
retrieval_chain = (
{"context": retriever, "question": | RunnablePassthrough() | langchain_core.runnables.RunnablePassthrough |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet scikit-learn')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet bson')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pandas pyarrow')
import os
from getpass import getpass
os.environ["OPENAI_API_KEY"] = getpass("Enter your OpenAI key:")
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import SKLearnVectorStore
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
loader = | TextLoader("../../modules/state_of_the_union.txt") | langchain_community.document_loaders.TextLoader |
get_ipython().system('pip3 install tcvectordb')
from langchain_community.document_loaders import TextLoader
from langchain_community.embeddings.fake import FakeEmbeddings
from langchain_community.vectorstores import TencentVectorDB
from langchain_community.vectorstores.tencentvectordb import ConnectionParams
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = | CharacterTextSplitter(chunk_size=1000, chunk_overlap=0) | langchain_text_splitters.CharacterTextSplitter |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai context-python')
import os
from langchain.callbacks import ContextCallbackHandler
token = os.environ["CONTEXT_API_TOKEN"]
context_callback = | ContextCallbackHandler(token) | langchain.callbacks.ContextCallbackHandler |
get_ipython().run_line_magic('pip', 'install -U --quiet langchain langchain_community openai chromadb langchain-experimental')
get_ipython().run_line_magic('pip', 'install --quiet "unstructured[all-docs]" pypdf pillow pydantic lxml pillow matplotlib chromadb tiktoken')
import logging
import zipfile
import requests
logging.basicConfig(level=logging.INFO)
data_url = "https://storage.googleapis.com/benchmarks-artifacts/langchain-docs-benchmarking/cj.zip"
result = requests.get(data_url)
filename = "cj.zip"
with open(filename, "wb") as file:
file.write(result.content)
with zipfile.ZipFile(filename, "r") as zip_ref:
zip_ref.extractall()
from langchain_community.document_loaders import PyPDFLoader
loader = PyPDFLoader("./cj/cj.pdf")
docs = loader.load()
tables = []
texts = [d.page_content for d in docs]
len(texts)
from langchain.prompts import PromptTemplate
from langchain_community.chat_models import ChatVertexAI
from langchain_community.llms import VertexAI
from langchain_core.messages import AIMessage
from langchain_core.output_parsers import StrOutputParser
from langchain_core.runnables import RunnableLambda
def generate_text_summaries(texts, tables, summarize_texts=False):
"""
Summarize text elements
texts: List of str
tables: List of str
summarize_texts: Bool to summarize texts
"""
prompt_text = """You are an assistant tasked with summarizing tables and text for retrieval. \
These summaries will be embedded and used to retrieve the raw text or table elements. \
Give a concise summary of the table or text that is well optimized for retrieval. Table or text: {element} """
prompt = PromptTemplate.from_template(prompt_text)
empty_response = RunnableLambda(
lambda x: AIMessage(content="Error processing document")
)
model = VertexAI(
temperature=0, model_name="gemini-pro", max_output_tokens=1024
).with_fallbacks([empty_response])
summarize_chain = {"element": lambda x: x} | prompt | model | StrOutputParser()
text_summaries = []
table_summaries = []
if texts and summarize_texts:
text_summaries = summarize_chain.batch(texts, {"max_concurrency": 1})
elif texts:
text_summaries = texts
if tables:
table_summaries = summarize_chain.batch(tables, {"max_concurrency": 1})
return text_summaries, table_summaries
text_summaries, table_summaries = generate_text_summaries(
texts, tables, summarize_texts=True
)
len(text_summaries)
import base64
import os
from langchain_core.messages import HumanMessage
def encode_image(image_path):
"""Getting the base64 string"""
with open(image_path, "rb") as image_file:
return base64.b64encode(image_file.read()).decode("utf-8")
def image_summarize(img_base64, prompt):
"""Make image summary"""
model = ChatVertexAI(model_name="gemini-pro-vision", max_output_tokens=1024)
msg = model(
[
HumanMessage(
content=[
{"type": "text", "text": prompt},
{
"type": "image_url",
"image_url": {"url": f"data:image/jpeg;base64,{img_base64}"},
},
]
)
]
)
return msg.content
def generate_img_summaries(path):
"""
Generate summaries and base64 encoded strings for images
path: Path to list of .jpg files extracted by Unstructured
"""
img_base64_list = []
image_summaries = []
prompt = """You are an assistant tasked with summarizing images for retrieval. \
These summaries will be embedded and used to retrieve the raw image. \
Give a concise summary of the image that is well optimized for retrieval."""
for img_file in sorted(os.listdir(path)):
if img_file.endswith(".jpg"):
img_path = os.path.join(path, img_file)
base64_image = encode_image(img_path)
img_base64_list.append(base64_image)
image_summaries.append(image_summarize(base64_image, prompt))
return img_base64_list, image_summaries
img_base64_list, image_summaries = generate_img_summaries("./cj")
len(image_summaries)
import uuid
from langchain.retrievers.multi_vector import MultiVectorRetriever
from langchain.storage import InMemoryStore
from langchain_community.embeddings import VertexAIEmbeddings
from langchain_community.vectorstores import Chroma
from langchain_core.documents import Document
def create_multi_vector_retriever(
vectorstore, text_summaries, texts, table_summaries, tables, image_summaries, images
):
"""
Create retriever that indexes summaries, but returns raw images or texts
"""
store = InMemoryStore()
id_key = "doc_id"
retriever = MultiVectorRetriever(
vectorstore=vectorstore,
docstore=store,
id_key=id_key,
)
def add_documents(retriever, doc_summaries, doc_contents):
doc_ids = [str(uuid.uuid4()) for _ in doc_contents]
summary_docs = [
Document(page_content=s, metadata={id_key: doc_ids[i]})
for i, s in enumerate(doc_summaries)
]
retriever.vectorstore.add_documents(summary_docs)
retriever.docstore.mset(list(zip(doc_ids, doc_contents)))
if text_summaries:
add_documents(retriever, text_summaries, texts)
if table_summaries:
add_documents(retriever, table_summaries, tables)
if image_summaries:
add_documents(retriever, image_summaries, images)
return retriever
vectorstore = Chroma(
collection_name="mm_rag_cj_blog",
embedding_function=VertexAIEmbeddings(model_name="textembedding-gecko@latest"),
)
retriever_multi_vector_img = create_multi_vector_retriever(
vectorstore,
text_summaries,
texts,
table_summaries,
tables,
image_summaries,
img_base64_list,
)
import io
import re
from IPython.display import HTML, display
from langchain_core.runnables import RunnableLambda, RunnablePassthrough
from PIL import Image
def plt_img_base64(img_base64):
"""Disply base64 encoded string as image"""
image_html = f'<img src="data:image/jpeg;base64,{img_base64}" />'
display(HTML(image_html))
def looks_like_base64(sb):
"""Check if the string looks like base64"""
return re.match("^[A-Za-z0-9+/]+[=]{0,2}$", sb) is not None
def is_image_data(b64data):
"""
Check if the base64 data is an image by looking at the start of the data
"""
image_signatures = {
b"\xFF\xD8\xFF": "jpg",
b"\x89\x50\x4E\x47\x0D\x0A\x1A\x0A": "png",
b"\x47\x49\x46\x38": "gif",
b"\x52\x49\x46\x46": "webp",
}
try:
header = base64.b64decode(b64data)[:8] # Decode and get the first 8 bytes
for sig, format in image_signatures.items():
if header.startswith(sig):
return True
return False
except Exception:
return False
def resize_base64_image(base64_string, size=(128, 128)):
"""
Resize an image encoded as a Base64 string
"""
img_data = base64.b64decode(base64_string)
img = Image.open(io.BytesIO(img_data))
resized_img = img.resize(size, Image.LANCZOS)
buffered = io.BytesIO()
resized_img.save(buffered, format=img.format)
return base64.b64encode(buffered.getvalue()).decode("utf-8")
def split_image_text_types(docs):
"""
Split base64-encoded images and texts
"""
b64_images = []
texts = []
for doc in docs:
if isinstance(doc, Document):
doc = doc.page_content
if looks_like_base64(doc) and is_image_data(doc):
doc = resize_base64_image(doc, size=(1300, 600))
b64_images.append(doc)
else:
texts.append(doc)
if len(b64_images) > 0:
return {"images": b64_images[:1], "texts": []}
return {"images": b64_images, "texts": texts}
def img_prompt_func(data_dict):
"""
Join the context into a single string
"""
formatted_texts = "\n".join(data_dict["context"]["texts"])
messages = []
text_message = {
"type": "text",
"text": (
"You are financial analyst tasking with providing investment advice.\n"
"You will be given a mixed of text, tables, and image(s) usually of charts or graphs.\n"
"Use this information to provide investment advice related to the user question. \n"
f"User-provided question: {data_dict['question']}\n\n"
"Text and / or tables:\n"
f"{formatted_texts}"
),
}
messages.append(text_message)
if data_dict["context"]["images"]:
for image in data_dict["context"]["images"]:
image_message = {
"type": "image_url",
"image_url": {"url": f"data:image/jpeg;base64,{image}"},
}
messages.append(image_message)
return [ | HumanMessage(content=messages) | langchain_core.messages.HumanMessage |
from langchain.indexes import SQLRecordManager, index
from langchain_core.documents import Document
from langchain_elasticsearch import ElasticsearchStore
from langchain_openai import OpenAIEmbeddings
collection_name = "test_index"
embedding = OpenAIEmbeddings()
vectorstore = ElasticsearchStore(
es_url="http://localhost:9200", index_name="test_index", embedding=embedding
)
namespace = f"elasticsearch/{collection_name}"
record_manager = SQLRecordManager(
namespace, db_url="sqlite:///record_manager_cache.sql"
)
record_manager.create_schema()
doc1 = Document(page_content="kitty", metadata={"source": "kitty.txt"})
doc2 = Document(page_content="doggy", metadata={"source": "doggy.txt"})
def _clear():
"""Hacky helper method to clear content. See the `full` mode section to to understand why it works."""
index([], record_manager, vectorstore, cleanup="full", source_id_key="source")
_clear()
index(
[doc1, doc1, doc1, doc1, doc1],
record_manager,
vectorstore,
cleanup=None,
source_id_key="source",
)
_clear()
index([doc1, doc2], record_manager, vectorstore, cleanup=None, source_id_key="source")
index([doc1, doc2], record_manager, vectorstore, cleanup=None, source_id_key="source")
_clear()
index(
[doc1, doc2],
record_manager,
vectorstore,
cleanup="incremental",
source_id_key="source",
)
index(
[doc1, doc2],
record_manager,
vectorstore,
cleanup="incremental",
source_id_key="source",
)
| index([], record_manager, vectorstore, cleanup="incremental", source_id_key="source") | langchain.indexes.index |
from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
from langchain_openai.chat_models import ChatOpenAI
model = ChatOpenAI()
prompt = ChatPromptTemplate.from_messages(
[
(
"system",
"You're an assistant who's good at {ability}. Respond in 20 words or fewer",
),
MessagesPlaceholder(variable_name="history"),
("human", "{input}"),
]
)
runnable = prompt | model
from langchain_community.chat_message_histories import ChatMessageHistory
from langchain_core.chat_history import BaseChatMessageHistory
from langchain_core.runnables.history import RunnableWithMessageHistory
store = {}
def get_session_history(session_id: str) -> BaseChatMessageHistory:
if session_id not in store:
store[session_id] = ChatMessageHistory()
return store[session_id]
with_message_history = RunnableWithMessageHistory(
runnable,
get_session_history,
input_messages_key="input",
history_messages_key="history",
)
with_message_history.invoke(
{"ability": "math", "input": "What does cosine mean?"},
config={"configurable": {"session_id": "abc123"}},
)
with_message_history.invoke(
{"ability": "math", "input": "What?"},
config={"configurable": {"session_id": "abc123"}},
)
with_message_history.invoke(
{"ability": "math", "input": "What?"},
config={"configurable": {"session_id": "def234"}},
)
from langchain_core.runnables import ConfigurableFieldSpec
store = {}
def get_session_history(user_id: str, conversation_id: str) -> BaseChatMessageHistory:
if (user_id, conversation_id) not in store:
store[(user_id, conversation_id)] = ChatMessageHistory()
return store[(user_id, conversation_id)]
with_message_history = RunnableWithMessageHistory(
runnable,
get_session_history,
input_messages_key="input",
history_messages_key="history",
history_factory_config=[
ConfigurableFieldSpec(
id="user_id",
annotation=str,
name="User ID",
description="Unique identifier for the user.",
default="",
is_shared=True,
),
ConfigurableFieldSpec(
id="conversation_id",
annotation=str,
name="Conversation ID",
description="Unique identifier for the conversation.",
default="",
is_shared=True,
),
],
)
with_message_history.invoke(
{"ability": "math", "input": "Hello"},
config={"configurable": {"user_id": "123", "conversation_id": "1"}},
)
from langchain_core.messages import HumanMessage
from langchain_core.runnables import RunnableParallel
chain = RunnableParallel({"output_message": ChatOpenAI()})
def get_session_history(session_id: str) -> BaseChatMessageHistory:
if session_id not in store:
store[session_id] = ChatMessageHistory()
return store[session_id]
with_message_history = RunnableWithMessageHistory(
chain,
get_session_history,
output_messages_key="output_message",
)
with_message_history.invoke(
[HumanMessage(content="What did Simone de Beauvoir believe about free will")],
config={"configurable": {"session_id": "baz"}},
)
with_message_history.invoke(
[HumanMessage(content="How did this compare to Sartre")],
config={"configurable": {"session_id": "baz"}},
)
RunnableWithMessageHistory(
| ChatOpenAI() | langchain_openai.chat_models.ChatOpenAI |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet tiktoken langchain-openai python-dotenv datasets langchain deeplake beautifulsoup4 html2text ragas')
ORG_ID = "..."
import getpass
import os
from langchain.chains import RetrievalQA
from langchain.vectorstores.deeplake import DeepLake
from langchain_openai import OpenAIChat, OpenAIEmbeddings
os.environ["OPENAI_API_KEY"] = getpass.getpass("Enter your OpenAI API token: ")
os.environ["ACTIVELOOP_TOKEN"] = getpass.getpass(
"Enter your ActiveLoop API token: "
) # Get your API token from https://app.activeloop.ai, click on your profile picture in the top right corner, and select "API Tokens"
token = os.getenv("ACTIVELOOP_TOKEN")
openai_embeddings = OpenAIEmbeddings()
db = DeepLake(
dataset_path=f"hub://{ORG_ID}/deeplake-docs-deepmemory", # org_id stands for your username or organization from activeloop
embedding=openai_embeddings,
runtime={"tensor_db": True},
token=token,
read_only=False,
)
from urllib.parse import urljoin
import requests
from bs4 import BeautifulSoup
def get_all_links(url):
response = requests.get(url)
if response.status_code != 200:
print(f"Failed to retrieve the page: {url}")
return []
soup = BeautifulSoup(response.content, "html.parser")
links = [
urljoin(url, a["href"]) for a in soup.find_all("a", href=True) if a["href"]
]
return links
base_url = "https://docs.deeplake.ai/en/latest/"
all_links = get_all_links(base_url)
from langchain.document_loaders import AsyncHtmlLoader
loader = AsyncHtmlLoader(all_links)
docs = loader.load()
from langchain.document_transformers import Html2TextTransformer
html2text = Html2TextTransformer()
docs_transformed = html2text.transform_documents(docs)
from langchain_text_splitters import RecursiveCharacterTextSplitter
chunk_size = 4096
docs_new = []
text_splitter = RecursiveCharacterTextSplitter(
chunk_size=chunk_size,
)
for doc in docs_transformed:
if len(doc.page_content) < chunk_size:
docs_new.append(doc)
else:
docs = text_splitter.create_documents([doc.page_content])
docs_new.extend(docs)
docs = db.add_documents(docs_new)
from typing import List
from langchain.chains.openai_functions import (
create_structured_output_chain,
)
from langchain_core.messages import HumanMessage, SystemMessage
from langchain_core.prompts import ChatPromptTemplate, HumanMessagePromptTemplate
from langchain_openai import ChatOpenAI
from pydantic import BaseModel, Field
docs = db.vectorstore.dataset.text.data(fetch_chunks=True, aslist=True)["value"]
ids = db.vectorstore.dataset.id.data(fetch_chunks=True, aslist=True)["value"]
llm = ChatOpenAI(model="gpt-3.5-turbo", temperature=0)
class Questions(BaseModel):
"""Identifying information about a person."""
question: str = Field(..., description="Questions about text")
prompt_msgs = [
SystemMessage(
content="You are a world class expert for generating questions based on provided context. \
You make sure the question can be answered by the text."
),
HumanMessagePromptTemplate.from_template(
"Use the given text to generate a question from the following input: {input}"
),
HumanMessage(content="Tips: Make sure to answer in the correct format"),
]
prompt = ChatPromptTemplate(messages=prompt_msgs)
chain = create_structured_output_chain(Questions, llm, prompt, verbose=True)
text = "# Understanding Hallucinations and Bias ## **Introduction** In this lesson, we'll cover the concept of **hallucinations** in LLMs, highlighting their influence on AI applications and demonstrating how to mitigate them using techniques like the retriever's architectures. We'll also explore **bias** within LLMs with examples."
questions = chain.run(input=text)
print(questions)
import random
from langchain_openai import OpenAIEmbeddings
from tqdm import tqdm
def generate_queries(docs: List[str], ids: List[str], n: int = 100):
questions = []
relevances = []
pbar = tqdm(total=n)
while len(questions) < n:
r = random.randint(0, len(docs) - 1)
text, label = docs[r], ids[r]
generated_qs = [chain.run(input=text).question]
questions.extend(generated_qs)
relevances.extend([[(label, 1)] for _ in generated_qs])
pbar.update(len(generated_qs))
if len(questions) % 10 == 0:
print(f"q: {len(questions)}")
return questions[:n], relevances[:n]
chain = create_structured_output_chain(Questions, llm, prompt, verbose=False)
questions, relevances = generate_queries(docs, ids, n=200)
train_questions, train_relevances = questions[:100], relevances[:100]
test_questions, test_relevances = questions[100:], relevances[100:]
job_id = db.vectorstore.deep_memory.train(
queries=train_questions,
relevance=train_relevances,
)
db.vectorstore.deep_memory.status("6538939ca0b69a9ca45c528c")
recall = db.vectorstore.deep_memory.evaluate(
queries=test_questions,
relevance=test_relevances,
)
from ragas.langchain import RagasEvaluatorChain
from ragas.metrics import (
context_recall,
)
def convert_relevance_to_ground_truth(docs, relevance):
ground_truths = []
for rel in relevance:
ground_truth = []
for doc_id, _ in rel:
ground_truth.append(docs[doc_id])
ground_truths.append(ground_truth)
return ground_truths
ground_truths = convert_relevance_to_ground_truth(docs, test_relevances)
for deep_memory in [False, True]:
print("\nEvaluating with deep_memory =", deep_memory)
print("===================================")
retriever = db.as_retriever()
retriever.search_kwargs["deep_memory"] = deep_memory
qa_chain = RetrievalQA.from_chain_type(
llm=OpenAIChat(model="gpt-3.5-turbo"),
chain_type="stuff",
retriever=retriever,
return_source_documents=True,
)
metrics = {
"context_recall_score": 0,
}
eval_chains = {m.name: RagasEvaluatorChain(metric=m) for m in [context_recall]}
for question, ground_truth in zip(test_questions, ground_truths):
result = qa_chain({"query": question})
result["ground_truths"] = ground_truth
for name, eval_chain in eval_chains.items():
score_name = f"{name}_score"
metrics[score_name] += eval_chain(result)[score_name]
for metric in metrics:
metrics[metric] /= len(test_questions)
print(f"{metric}: {metrics[metric]}")
print("===================================")
retriever = db.as_retriever()
retriever.search_kwargs["deep_memory"] = True
retriever.search_kwargs["k"] = 10
query = "Deamination of cytidine to uridine on the minus strand of viral DNA results in catastrophic G-to-A mutations in the viral genome."
qa = RetrievalQA.from_chain_type(
llm=OpenAIChat(model="gpt-4"), chain_type="stuff", retriever=retriever
)
print(qa.run(query))
retriever = db.as_retriever()
retriever.search_kwargs["deep_memory"] = False
retriever.search_kwargs["k"] = 10
query = "Deamination of cytidine to uridine on the minus strand of viral DNA results in catastrophic G-to-A mutations in the viral genome."
qa = RetrievalQA.from_chain_type(
llm= | OpenAIChat(model="gpt-4") | langchain_openai.OpenAIChat |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain.model_laboratory import ModelLaboratory
from langchain.prompts import PromptTemplate
from langchain_community.llms import Cohere, HuggingFaceHub
from langchain_openai import OpenAI
import getpass
import os
os.environ["COHERE_API_KEY"] = getpass.getpass("Cohere API Key:")
os.environ["OPENAI_API_KEY"] = getpass.getpass("Open API Key:")
os.environ["HUGGINGFACEHUB_API_TOKEN"] = getpass.getpass("Hugging Face API Key:")
llms = [
OpenAI(temperature=0),
| Cohere(temperature=0) | langchain_community.llms.Cohere |
import os
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.llms import ForefrontAI
from getpass import getpass
FOREFRONTAI_API_KEY = getpass()
os.environ["FOREFRONTAI_API_KEY"] = FOREFRONTAI_API_KEY
llm = | ForefrontAI(endpoint_url="YOUR ENDPOINT URL HERE") | langchain_community.llms.ForefrontAI |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet youtube_search')
from langchain.tools import YouTubeSearchTool
tool = | YouTubeSearchTool() | langchain.tools.YouTubeSearchTool |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pipeline-ai')
import os
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.llms import PipelineAI
os.environ["PIPELINE_API_KEY"] = "YOUR_API_KEY_HERE"
llm = PipelineAI(pipeline_key="YOUR_PIPELINE_KEY", pipeline_kwargs={...})
template = """Question: {question}
Answer: Let's think step by step."""
prompt = | PromptTemplate.from_template(template) | langchain.prompts.PromptTemplate.from_template |
import re
from typing import Union
from langchain.agents import (
AgentExecutor,
AgentOutputParser,
LLMSingleActionAgent,
Tool,
)
from langchain.chains import LLMChain
from langchain.prompts import StringPromptTemplate
from langchain_community.utilities import SerpAPIWrapper
from langchain_core.agents import AgentAction, AgentFinish
from langchain_openai import OpenAI
search = | SerpAPIWrapper() | langchain_community.utilities.SerpAPIWrapper |
model_url = "http://localhost:5000"
from langchain.chains import LLMChain
from langchain.globals import set_debug
from langchain.prompts import PromptTemplate
from langchain_community.llms import TextGen
| set_debug(True) | langchain.globals.set_debug |
meals = [
"Beef Enchiladas with Feta cheese. Mexican-Greek fusion",
"Chicken Flatbreads with red sauce. Italian-Mexican fusion",
"Veggie sweet potato quesadillas with vegan cheese",
"One-Pan Tortelonni bake with peppers and onions",
]
from langchain_openai import OpenAI
llm = OpenAI(model="gpt-3.5-turbo-instruct")
from langchain.prompts import PromptTemplate
PROMPT_TEMPLATE = """Here is the description of a meal: "{meal}".
Embed the meal into the given text: "{text_to_personalize}".
Prepend a personalized message including the user's name "{user}"
and their preference "{preference}".
Make it sound good.
"""
PROMPT = PromptTemplate(
input_variables=["meal", "text_to_personalize", "user", "preference"],
template=PROMPT_TEMPLATE,
)
import langchain_experimental.rl_chain as rl_chain
chain = rl_chain.PickBest.from_llm(llm=llm, prompt=PROMPT)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs \
believe you will love it!",
)
print(response["response"])
for _ in range(5):
try:
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
except Exception as e:
print(e)
print(response["response"])
print()
scoring_criteria_template = (
"Given {preference} rank how good or bad this selection is {meal}"
)
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=rl_chain.AutoSelectionScorer(
llm=llm, scoring_criteria_template_str=scoring_criteria_template
),
)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
print(response["response"])
selection_metadata = response["selection_metadata"]
print(
f"selected index: {selection_metadata.selected.index}, score: {selection_metadata.selected.score}"
)
class CustomSelectionScorer(rl_chain.SelectionScorer):
def score_response(
self, inputs, llm_response: str, event: rl_chain.PickBestEvent
) -> float:
print(event.based_on)
print(event.to_select_from)
selected_meal = event.to_select_from["meal"][event.selected.index]
print(f"selected meal: {selected_meal}")
if "Tom" in event.based_on["user"]:
if "Vegetarian" in event.based_on["preference"]:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 0.0
else:
return 1.0
else:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 1.0
else:
return 0.0
else:
raise NotImplementedError("I don't know how to score this user")
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
)
response = chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
class CustomSelectionScorer(rl_chain.SelectionScorer):
def score_preference(self, preference, selected_meal):
if "Vegetarian" in preference:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 0.0
else:
return 1.0
else:
if "Chicken" in selected_meal or "Beef" in selected_meal:
return 1.0
else:
return 0.0
def score_response(
self, inputs, llm_response: str, event: rl_chain.PickBestEvent
) -> float:
selected_meal = event.to_select_from["meal"][event.selected.index]
if "Tom" in event.based_on["user"]:
return self.score_preference(event.based_on["preference"], selected_meal)
elif "Anna" in event.based_on["user"]:
return self.score_preference(event.based_on["preference"], selected_meal)
else:
raise NotImplementedError("I don't know how to score this user")
chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
metrics_step=5,
metrics_window_size=5, # rolling window average
)
random_chain = rl_chain.PickBest.from_llm(
llm=llm,
prompt=PROMPT,
selection_scorer=CustomSelectionScorer(),
metrics_step=5,
metrics_window_size=5, # rolling window average
policy=rl_chain.PickBestRandomPolicy, # set the random policy instead of default
)
for _ in range(20):
try:
chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
random_chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Tom"),
preference=rl_chain.BasedOn(["Vegetarian", "regular dairy is ok"]),
text_to_personalize="This is the weeks specialty dish, our master chefs believe you will love it!",
)
chain.run(
meal=rl_chain.ToSelectFrom(meals),
user=rl_chain.BasedOn("Anna"),
preference= | rl_chain.BasedOn(["Loves meat", "especially beef"]) | langchain_experimental.rl_chain.BasedOn |
get_ipython().run_line_magic('pip', 'install xmltodict')
from langchain_community.tools.pubmed.tool import PubmedQueryRun
tool = | PubmedQueryRun() | langchain_community.tools.pubmed.tool.PubmedQueryRun |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain.prompts import PromptTemplate
from langchain_core.runnables import ConfigurableField
from langchain_openai import ChatOpenAI
model = ChatOpenAI(temperature=0).configurable_fields(
temperature=ConfigurableField(
id="llm_temperature",
name="LLM Temperature",
description="The temperature of the LLM",
)
)
model.invoke("pick a random number")
model.with_config(configurable={"llm_temperature": 0.9}).invoke("pick a random number")
prompt = PromptTemplate.from_template("Pick a random number above {x}")
chain = prompt | model
chain.invoke({"x": 0})
chain.with_config(configurable={"llm_temperature": 0.9}).invoke({"x": 0})
from langchain.runnables.hub import HubRunnable
prompt = HubRunnable("rlm/rag-prompt").configurable_fields(
owner_repo_commit=ConfigurableField(
id="hub_commit",
name="Hub Commit",
description="The Hub commit to pull from",
)
)
prompt.invoke({"question": "foo", "context": "bar"})
prompt.with_config(configurable={"hub_commit": "rlm/rag-prompt-llama"}).invoke(
{"question": "foo", "context": "bar"}
)
from langchain.prompts import PromptTemplate
from langchain_community.chat_models import ChatAnthropic
from langchain_core.runnables import ConfigurableField
from langchain_openai import ChatOpenAI
llm = ChatAnthropic(temperature=0).configurable_alternatives(
ConfigurableField(id="llm"),
default_key="anthropic",
openai=ChatOpenAI(),
gpt4= | ChatOpenAI(model="gpt-4") | langchain_openai.ChatOpenAI |
from langchain_community.utilities import DuckDuckGoSearchAPIWrapper
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_core.runnables import RunnablePassthrough
from langchain_openai import ChatOpenAI
template = """Answer the users question based only on the following context:
<context>
{context}
</context>
Question: {question}
"""
prompt = ChatPromptTemplate.from_template(template)
model = ChatOpenAI(temperature=0)
search = DuckDuckGoSearchAPIWrapper()
def retriever(query):
return search.run(query)
chain = (
{"context": retriever, "question": RunnablePassthrough()}
| prompt
| model
| StrOutputParser()
)
simple_query = "what is langchain?"
chain.invoke(simple_query)
distracted_query = "man that sam bankman fried trial was crazy! what is langchain?"
chain.invoke(distracted_query)
retriever(distracted_query)
template = """Provide a better search query for \
web search engine to answer the given question, end \
the queries with ’**’. Question: \
{x} Answer:"""
rewrite_prompt = ChatPromptTemplate.from_template(template)
from langchain import hub
rewrite_prompt = hub.pull("langchain-ai/rewrite")
print(rewrite_prompt.template)
def _parse(text):
return text.strip("**")
rewriter = rewrite_prompt | ChatOpenAI(temperature=0) | | StrOutputParser() | langchain_core.output_parsers.StrOutputParser |
from langchain_community.vectorstores import Bagel
texts = ["hello bagel", "hello langchain", "I love salad", "my car", "a dog"]
cluster = Bagel.from_texts(cluster_name="testing", texts=texts)
cluster.similarity_search("bagel", k=3)
cluster.similarity_search_with_score("bagel", k=3)
cluster.delete_cluster()
from langchain_community.document_loaders import TextLoader
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)[:10]
cluster = Bagel.from_documents(cluster_name="testing_with_docs", documents=docs)
query = "What did the president say about Ketanji Brown Jackson"
docs = cluster.similarity_search(query)
print(docs[0].page_content[:102])
texts = ["hello bagel", "this is langchain"]
cluster = | Bagel.from_texts(cluster_name="testing", texts=texts) | langchain_community.vectorstores.Bagel.from_texts |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pipeline-ai')
import os
from langchain.chains import LLMChain
from langchain.prompts import PromptTemplate
from langchain_community.llms import PipelineAI
os.environ["PIPELINE_API_KEY"] = "YOUR_API_KEY_HERE"
llm = | PipelineAI(pipeline_key="YOUR_PIPELINE_KEY", pipeline_kwargs={...}) | langchain_community.llms.PipelineAI |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain langchain-openai')
from langchain.model_laboratory import ModelLaboratory
from langchain.prompts import PromptTemplate
from langchain_community.llms import Cohere, HuggingFaceHub
from langchain_openai import OpenAI
import getpass
import os
os.environ["COHERE_API_KEY"] = getpass.getpass("Cohere API Key:")
os.environ["OPENAI_API_KEY"] = getpass.getpass("Open API Key:")
os.environ["HUGGINGFACEHUB_API_TOKEN"] = getpass.getpass("Hugging Face API Key:")
llms = [
OpenAI(temperature=0),
Cohere(temperature=0),
HuggingFaceHub(repo_id="google/flan-t5-xl", model_kwargs={"temperature": 1}),
]
model_lab = ModelLaboratory.from_llms(llms)
model_lab.compare("What color is a flamingo?")
prompt = PromptTemplate(
template="What is the capital of {state}?", input_variables=["state"]
)
model_lab_with_prompt = | ModelLaboratory.from_llms(llms, prompt=prompt) | langchain.model_laboratory.ModelLaboratory.from_llms |
get_ipython().run_line_magic('pip', 'install -qU langchain langchain-openai langchain-anthropic langchain-community wikipedia')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass()
os.environ["ANTHROPIC_API_KEY"] = getpass.getpass()
from langchain_community.retrievers import WikipediaRetriever
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
llm = ChatOpenAI(model="gpt-3.5-turbo", temperature=0)
wiki = WikipediaRetriever(top_k_results=6, doc_content_chars_max=2000)
prompt = ChatPromptTemplate.from_messages(
[
(
"system",
"You're a helpful AI assistant. Given a user question and some Wikipedia article snippets, answer the user question. If none of the articles answer the question, just say you don't know.\n\nHere are the Wikipedia articles:{context}",
),
("human", "{question}"),
]
)
prompt.pretty_print()
from operator import itemgetter
from typing import List
from langchain_core.documents import Document
from langchain_core.output_parsers import StrOutputParser
from langchain_core.runnables import (
RunnableLambda,
RunnableParallel,
RunnablePassthrough,
)
def format_docs(docs: List[Document]) -> str:
"""Convert Documents to a single string.:"""
formatted = [
f"Article Title: {doc.metadata['title']}\nArticle Snippet: {doc.page_content}"
for doc in docs
]
return "\n\n" + "\n\n".join(formatted)
format = itemgetter("docs") | | RunnableLambda(format_docs) | langchain_core.runnables.RunnableLambda |
get_ipython().system('pip install termcolor > /dev/null')
import logging
logging.basicConfig(level=logging.ERROR)
from datetime import datetime, timedelta
from typing import List
from langchain.docstore import InMemoryDocstore
from langchain.retrievers import TimeWeightedVectorStoreRetriever
from langchain_community.vectorstores import FAISS
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
from termcolor import colored
USER_NAME = "Person A" # The name you want to use when interviewing the agent.
LLM = ChatOpenAI(max_tokens=1500) # Can be any LLM you want.
from langchain_experimental.generative_agents import (
GenerativeAgent,
GenerativeAgentMemory,
)
import math
import faiss
def relevance_score_fn(score: float) -> float:
"""Return a similarity score on a scale [0, 1]."""
return 1.0 - score / math.sqrt(2)
def create_new_memory_retriever():
"""Create a new vector store retriever unique to the agent."""
embeddings_model = | OpenAIEmbeddings() | langchain_openai.OpenAIEmbeddings |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet boto3 nltk')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain_experimental')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain pydantic')
import os
import boto3
comprehend_client = boto3.client("comprehend", region_name="us-east-1")
from langchain_experimental.comprehend_moderation import AmazonComprehendModerationChain
comprehend_moderation = AmazonComprehendModerationChain(
client=comprehend_client,
verbose=True, # optional
)
from langchain.prompts import PromptTemplate
from langchain_community.llms.fake import FakeListLLM
from langchain_experimental.comprehend_moderation.base_moderation_exceptions import (
ModerationPiiError,
)
template = """Question: {question}
Answer:"""
prompt = PromptTemplate.from_template(template)
responses = [
"Final Answer: A credit card number looks like 1289-2321-1123-2387. A fake SSN number looks like 323-22-9980. John Doe's phone number is (999)253-9876.",
"Final Answer: This is a really <expletive> way of constructing a birdhouse. This is <expletive> insane to think that any birds would actually create their <expletive> nests here.",
]
llm = FakeListLLM(responses=responses)
chain = (
prompt
| comprehend_moderation
| {"input": (lambda x: x["output"]) | llm}
| comprehend_moderation
)
try:
response = chain.invoke(
{
"question": "A sample SSN number looks like this 123-22-3345. Can you give me some more samples?"
}
)
except ModerationPiiError as e:
print(str(e))
else:
print(response["output"])
from langchain_experimental.comprehend_moderation import (
BaseModerationConfig,
ModerationPiiConfig,
ModerationPromptSafetyConfig,
ModerationToxicityConfig,
)
pii_config = ModerationPiiConfig(labels=["SSN"], redact=True, mask_character="X")
toxicity_config = ModerationToxicityConfig(threshold=0.5)
prompt_safety_config = ModerationPromptSafetyConfig(threshold=0.5)
moderation_config = BaseModerationConfig(
filters=[pii_config, toxicity_config, prompt_safety_config]
)
comp_moderation_with_config = AmazonComprehendModerationChain(
moderation_config=moderation_config, # specify the configuration
client=comprehend_client, # optionally pass the Boto3 Client
verbose=True,
)
from langchain.prompts import PromptTemplate
from langchain_community.llms.fake import FakeListLLM
template = """Question: {question}
Answer:"""
prompt = PromptTemplate.from_template(template)
responses = [
"Final Answer: A credit card number looks like 1289-2321-1123-2387. A fake SSN number looks like 323-22-9980. John Doe's phone number is (999)253-9876.",
"Final Answer: This is a really <expletive> way of constructing a birdhouse. This is <expletive> insane to think that any birds would actually create their <expletive> nests here.",
]
llm = FakeListLLM(responses=responses)
chain = (
prompt
| comp_moderation_with_config
| {"input": (lambda x: x["output"]) | llm}
| comp_moderation_with_config
)
try:
response = chain.invoke(
{
"question": "A sample SSN number looks like this 123-45-7890. Can you give me some more samples?"
}
)
except Exception as e:
print(str(e))
else:
print(response["output"])
from langchain_experimental.comprehend_moderation import BaseModerationCallbackHandler
class MyModCallback(BaseModerationCallbackHandler):
async def on_after_pii(self, output_beacon, unique_id):
import json
moderation_type = output_beacon["moderation_type"]
chain_id = output_beacon["moderation_chain_id"]
with open(f"output-{moderation_type}-{chain_id}.json", "w") as file:
data = {"beacon_data": output_beacon, "unique_id": unique_id}
json.dump(data, file)
"""
async def on_after_toxicity(self, output_beacon, unique_id):
pass
async def on_after_prompt_safety(self, output_beacon, unique_id):
pass
"""
my_callback = MyModCallback()
pii_config = ModerationPiiConfig(labels=["SSN"], redact=True, mask_character="X")
toxicity_config = ModerationToxicityConfig(threshold=0.5)
moderation_config = BaseModerationConfig(filters=[pii_config, toxicity_config])
comp_moderation_with_config = AmazonComprehendModerationChain(
moderation_config=moderation_config, # specify the configuration
client=comprehend_client, # optionally pass the Boto3 Client
unique_id="john.doe@email.com", # A unique ID
moderation_callback=my_callback, # BaseModerationCallbackHandler
verbose=True,
)
from langchain.prompts import PromptTemplate
from langchain_community.llms.fake import FakeListLLM
template = """Question: {question}
Answer:"""
prompt = PromptTemplate.from_template(template)
responses = [
"Final Answer: A credit card number looks like 1289-2321-1123-2387. A fake SSN number looks like 323-22-9980. John Doe's phone number is (999)253-9876.",
"Final Answer: This is a really <expletive> way of constructing a birdhouse. This is <expletive> insane to think that any birds would actually create their <expletive> nests here.",
]
llm = FakeListLLM(responses=responses)
chain = (
prompt
| comp_moderation_with_config
| {"input": (lambda x: x["output"]) | llm}
| comp_moderation_with_config
)
try:
response = chain.invoke(
{
"question": "A sample SSN number looks like this 123-456-7890. Can you give me some more samples?"
}
)
except Exception as e:
print(str(e))
else:
print(response["output"])
get_ipython().run_line_magic('pip', 'install --upgrade --quiet huggingface_hub')
import os
os.environ["HUGGINGFACEHUB_API_TOKEN"] = "<YOUR HF TOKEN HERE>"
repo_id = "google/flan-t5-xxl"
from langchain.prompts import PromptTemplate
from langchain_community.llms import HuggingFaceHub
template = """{question}"""
prompt = PromptTemplate.from_template(template)
llm = HuggingFaceHub(
repo_id=repo_id, model_kwargs={"temperature": 0.5, "max_length": 256}
)
pii_config = ModerationPiiConfig(
labels=["SSN", "CREDIT_DEBIT_NUMBER"], redact=True, mask_character="X"
)
toxicity_config = ModerationToxicityConfig(threshold=0.5)
prompt_safety_config = ModerationPromptSafetyConfig(threshold=0.8)
moderation_config_1 = BaseModerationConfig(
filters=[pii_config, toxicity_config, prompt_safety_config]
)
moderation_config_2 = BaseModerationConfig(filters=[pii_config])
amazon_comp_moderation = AmazonComprehendModerationChain(
moderation_config=moderation_config_1,
client=comprehend_client,
moderation_callback=my_callback,
verbose=True,
)
amazon_comp_moderation_out = AmazonComprehendModerationChain(
moderation_config=moderation_config_2, client=comprehend_client, verbose=True
)
chain = (
prompt
| amazon_comp_moderation
| {"input": (lambda x: x["output"]) | llm}
| amazon_comp_moderation_out
)
try:
response = chain.invoke(
{
"question": """What is John Doe's address, phone number and SSN from the following text?
John Doe, a resident of 1234 Elm Street in Springfield, recently celebrated his birthday on January 1st. Turning 43 this year, John reflected on the years gone by. He often shares memories of his younger days with his close friends through calls on his phone, (555) 123-4567. Meanwhile, during a casual evening, he received an email at johndoe@example.com reminding him of an old acquaintance's reunion. As he navigated through some old documents, he stumbled upon a paper that listed his SSN as 123-45-6789, reminding him to store it in a safer place.
"""
}
)
except Exception as e:
print(str(e))
else:
print(response["output"])
endpoint_name = "<SAGEMAKER_ENDPOINT_NAME>" # replace with your SageMaker Endpoint name
region = "<REGION>" # replace with your SageMaker Endpoint region
import json
from langchain.prompts import PromptTemplate
from langchain_community.llms import SagemakerEndpoint
from langchain_community.llms.sagemaker_endpoint import LLMContentHandler
class ContentHandler(LLMContentHandler):
content_type = "application/json"
accepts = "application/json"
def transform_input(self, prompt: str, model_kwargs: dict) -> bytes:
input_str = json.dumps({"text_inputs": prompt, **model_kwargs})
return input_str.encode("utf-8")
def transform_output(self, output: bytes) -> str:
response_json = json.loads(output.read().decode("utf-8"))
return response_json["generated_texts"][0]
content_handler = ContentHandler()
template = """From the following 'Document', precisely answer the 'Question'. Do not add any spurious information in your answer.
Document: John Doe, a resident of 1234 Elm Street in Springfield, recently celebrated his birthday on January 1st. Turning 43 this year, John reflected on the years gone by. He often shares memories of his younger days with his close friends through calls on his phone, (555) 123-4567. Meanwhile, during a casual evening, he received an email at johndoe@example.com reminding him of an old acquaintance's reunion. As he navigated through some old documents, he stumbled upon a paper that listed his SSN as 123-45-6789, reminding him to store it in a safer place.
Question: {question}
Answer:
"""
llm_prompt = | PromptTemplate.from_template(template) | langchain.prompts.PromptTemplate.from_template |
get_ipython().run_line_magic('pip', 'install "pgvecto_rs[sdk]"')
from typing import List
from langchain.docstore.document import Document
from langchain_community.document_loaders import TextLoader
from langchain_community.embeddings.fake import FakeEmbeddings
from langchain_community.vectorstores.pgvecto_rs import PGVecto_rs
from langchain_text_splitters import CharacterTextSplitter
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = | FakeEmbeddings(size=3) | langchain_community.embeddings.fake.FakeEmbeddings |
from langchain.callbacks import get_openai_callback
from langchain_openai import ChatOpenAI
llm = | ChatOpenAI(model_name="gpt-4") | langchain_openai.ChatOpenAI |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet unstructured')
from langchain_community.document_loaders import UnstructuredEmailLoader
loader = | UnstructuredEmailLoader("example_data/fake-email.eml") | langchain_community.document_loaders.UnstructuredEmailLoader |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet pymilvus')
import getpass
import os
os.environ["OPENAI_API_KEY"] = getpass.getpass("OpenAI API Key:")
from langchain_community.document_loaders import TextLoader
from langchain_community.vectorstores import Milvus
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import CharacterTextSplitter
from langchain_community.document_loaders import TextLoader
loader = TextLoader("../../modules/state_of_the_union.txt")
documents = loader.load()
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
docs = text_splitter.split_documents(documents)
embeddings = OpenAIEmbeddings()
vector_db = Milvus.from_documents(
docs,
embeddings,
connection_args={"host": "127.0.0.1", "port": "19530"},
)
query = "What did the president say about Ketanji Brown Jackson"
docs = vector_db.similarity_search(query)
docs[0].page_content
vector_db = Milvus.from_documents(
docs,
embeddings,
collection_name="collection_1",
connection_args={"host": "127.0.0.1", "port": "19530"},
)
vector_db = Milvus(
embeddings,
connection_args={"host": "127.0.0.1", "port": "19530"},
collection_name="collection_1",
)
from langchain_core.documents import Document
docs = [
Document(page_content="i worked at kensho", metadata={"namespace": "harrison"}),
| Document(page_content="i worked at facebook", metadata={"namespace": "ankush"}) | langchain.docstore.document.Document |
get_ipython().system('poetry run pip install dgml-utils==0.3.0 --upgrade --quiet')
import os
from langchain_community.document_loaders import DocugamiLoader
DOCUGAMI_API_KEY = os.environ.get("DOCUGAMI_API_KEY")
docset_id = "26xpy3aes7xp"
document_ids = ["d7jqdzcj50sj", "cgd1eacfkchw"]
loader = | DocugamiLoader(docset_id=docset_id, document_ids=document_ids) | langchain_community.document_loaders.DocugamiLoader |
get_ipython().system(' pip install -U langchain openai chromadb langchain-experimental # (newest versions required for multi-modal)')
get_ipython().system(' pip install "unstructured[all-docs]" pillow pydantic lxml pillow matplotlib chromadb tiktoken')
from langchain_text_splitters import CharacterTextSplitter
from unstructured.partition.pdf import partition_pdf
def extract_pdf_elements(path, fname):
"""
Extract images, tables, and chunk text from a PDF file.
path: File path, which is used to dump images (.jpg)
fname: File name
"""
return partition_pdf(
filename=path + fname,
extract_images_in_pdf=False,
infer_table_structure=True,
chunking_strategy="by_title",
max_characters=4000,
new_after_n_chars=3800,
combine_text_under_n_chars=2000,
image_output_dir_path=path,
)
def categorize_elements(raw_pdf_elements):
"""
Categorize extracted elements from a PDF into tables and texts.
raw_pdf_elements: List of unstructured.documents.elements
"""
tables = []
texts = []
for element in raw_pdf_elements:
if "unstructured.documents.elements.Table" in str(type(element)):
tables.append(str(element))
elif "unstructured.documents.elements.CompositeElement" in str(type(element)):
texts.append(str(element))
return texts, tables
fpath = "/Users/rlm/Desktop/cj/"
fname = "cj.pdf"
raw_pdf_elements = extract_pdf_elements(fpath, fname)
texts, tables = categorize_elements(raw_pdf_elements)
text_splitter = CharacterTextSplitter.from_tiktoken_encoder(
chunk_size=4000, chunk_overlap=0
)
joined_texts = " ".join(texts)
texts_4k_token = text_splitter.split_text(joined_texts)
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_openai import ChatOpenAI
def generate_text_summaries(texts, tables, summarize_texts=False):
"""
Summarize text elements
texts: List of str
tables: List of str
summarize_texts: Bool to summarize texts
"""
prompt_text = """You are an assistant tasked with summarizing tables and text for retrieval. \
These summaries will be embedded and used to retrieve the raw text or table elements. \
Give a concise summary of the table or text that is well optimized for retrieval. Table or text: {element} """
prompt = ChatPromptTemplate.from_template(prompt_text)
model = ChatOpenAI(temperature=0, model="gpt-4")
summarize_chain = {"element": lambda x: x} | prompt | model | StrOutputParser()
text_summaries = []
table_summaries = []
if texts and summarize_texts:
text_summaries = summarize_chain.batch(texts, {"max_concurrency": 5})
elif texts:
text_summaries = texts
if tables:
table_summaries = summarize_chain.batch(tables, {"max_concurrency": 5})
return text_summaries, table_summaries
text_summaries, table_summaries = generate_text_summaries(
texts_4k_token, tables, summarize_texts=True
)
import base64
import os
from langchain_core.messages import HumanMessage
def encode_image(image_path):
"""Getting the base64 string"""
with open(image_path, "rb") as image_file:
return base64.b64encode(image_file.read()).decode("utf-8")
def image_summarize(img_base64, prompt):
"""Make image summary"""
chat = ChatOpenAI(model="gpt-4-vision-preview", max_tokens=1024)
msg = chat.invoke(
[
HumanMessage(
content=[
{"type": "text", "text": prompt},
{
"type": "image_url",
"image_url": {"url": f"data:image/jpeg;base64,{img_base64}"},
},
]
)
]
)
return msg.content
def generate_img_summaries(path):
"""
Generate summaries and base64 encoded strings for images
path: Path to list of .jpg files extracted by Unstructured
"""
img_base64_list = []
image_summaries = []
prompt = """You are an assistant tasked with summarizing images for retrieval. \
These summaries will be embedded and used to retrieve the raw image. \
Give a concise summary of the image that is well optimized for retrieval."""
for img_file in sorted(os.listdir(path)):
if img_file.endswith(".jpg"):
img_path = os.path.join(path, img_file)
base64_image = encode_image(img_path)
img_base64_list.append(base64_image)
image_summaries.append(image_summarize(base64_image, prompt))
return img_base64_list, image_summaries
img_base64_list, image_summaries = generate_img_summaries(fpath)
import uuid
from langchain.retrievers.multi_vector import MultiVectorRetriever
from langchain.storage import InMemoryStore
from langchain_community.vectorstores import Chroma
from langchain_core.documents import Document
from langchain_openai import OpenAIEmbeddings
def create_multi_vector_retriever(
vectorstore, text_summaries, texts, table_summaries, tables, image_summaries, images
):
"""
Create retriever that indexes summaries, but returns raw images or texts
"""
store = InMemoryStore()
id_key = "doc_id"
retriever = MultiVectorRetriever(
vectorstore=vectorstore,
docstore=store,
id_key=id_key,
)
def add_documents(retriever, doc_summaries, doc_contents):
doc_ids = [str(uuid.uuid4()) for _ in doc_contents]
summary_docs = [
Document(page_content=s, metadata={id_key: doc_ids[i]})
for i, s in enumerate(doc_summaries)
]
retriever.vectorstore.add_documents(summary_docs)
retriever.docstore.mset(list(zip(doc_ids, doc_contents)))
if text_summaries:
add_documents(retriever, text_summaries, texts)
if table_summaries:
add_documents(retriever, table_summaries, tables)
if image_summaries:
add_documents(retriever, image_summaries, images)
return retriever
vectorstore = Chroma(
collection_name="mm_rag_cj_blog", embedding_function= | OpenAIEmbeddings() | langchain_openai.OpenAIEmbeddings |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-nvidia-ai-endpoints')
import getpass
import os
if not os.environ.get("NVIDIA_API_KEY", "").startswith("nvapi-"):
nvapi_key = getpass.getpass("Enter your NVIDIA API key: ")
assert nvapi_key.startswith("nvapi-"), f"{nvapi_key[:5]}... is not a valid key"
os.environ["NVIDIA_API_KEY"] = nvapi_key
from langchain_nvidia_ai_endpoints import ChatNVIDIA
llm = ChatNVIDIA(model="mixtral_8x7b")
result = llm.invoke("Write a ballad about LangChain.")
print(result.content)
print(llm.batch(["What's 2*3?", "What's 2*6?"]))
for chunk in llm.stream("How far can a seagull fly in one day?"):
print(chunk.content, end="|")
async for chunk in llm.astream(
"How long does it take for monarch butterflies to migrate?"
):
print(chunk.content, end="|")
ChatNVIDIA.get_available_models()
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_nvidia_ai_endpoints import ChatNVIDIA
prompt = ChatPromptTemplate.from_messages(
[("system", "You are a helpful AI assistant named Fred."), ("user", "{input}")]
)
chain = prompt | ChatNVIDIA(model="llama2_13b") | StrOutputParser()
for txt in chain.stream({"input": "What's your name?"}):
print(txt, end="")
prompt = ChatPromptTemplate.from_messages(
[
(
"system",
"You are an expert coding AI. Respond only in valid python; no narration whatsoever.",
),
("user", "{input}"),
]
)
chain = prompt | ChatNVIDIA(model="llama2_code_70b") | StrOutputParser()
for txt in chain.stream({"input": "How do I solve this fizz buzz problem?"}):
print(txt, end="")
from langchain_nvidia_ai_endpoints import ChatNVIDIA
llm = ChatNVIDIA(model="nemotron_steerlm_8b")
complex_result = llm.invoke(
"What's a PB&J?", labels={"creativity": 0, "complexity": 3, "verbosity": 0}
)
print("Un-creative\n")
print(complex_result.content)
print("\n\nCreative\n")
creative_result = llm.invoke(
"What's a PB&J?", labels={"creativity": 9, "complexity": 3, "verbosity": 9}
)
print(creative_result.content)
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_nvidia_ai_endpoints import ChatNVIDIA
prompt = ChatPromptTemplate.from_messages(
[("system", "You are a helpful AI assistant named Fred."), ("user", "{input}")]
)
chain = (
prompt
| ChatNVIDIA(model="nemotron_steerlm_8b").bind(
labels={"creativity": 9, "complexity": 0, "verbosity": 9}
)
| StrOutputParser()
)
for txt in chain.stream({"input": "Why is a PB&J?"}):
print(txt, end="")
import IPython
import requests
image_url = "https://www.nvidia.com/content/dam/en-zz/Solutions/research/ai-playground/nvidia-picasso-3c33-p@2x.jpg" ## Large Image
image_content = requests.get(image_url).content
IPython.display.Image(image_content)
from langchain_nvidia_ai_endpoints import ChatNVIDIA
llm = ChatNVIDIA(model="playground_neva_22b")
from langchain_core.messages import HumanMessage
llm.invoke(
[
HumanMessage(
content=[
{"type": "text", "text": "Describe this image:"},
{"type": "image_url", "image_url": {"url": image_url}},
]
)
]
)
from langchain_core.messages import HumanMessage
llm.invoke(
[
HumanMessage(
content=[
{"type": "text", "text": "Describe this image:"},
{"type": "image_url", "image_url": {"url": image_url}},
]
)
],
labels={"creativity": 0, "quality": 9, "complexity": 0, "verbosity": 0},
)
import IPython
import requests
image_url = "https://picsum.photos/seed/kitten/300/200"
image_content = requests.get(image_url).content
IPython.display.Image(image_content)
import base64
from langchain_core.messages import HumanMessage
b64_string = base64.b64encode(image_content).decode("utf-8")
llm.invoke(
[
HumanMessage(
content=[
{"type": "text", "text": "Describe this image:"},
{
"type": "image_url",
"image_url": {"url": f"data:image/png;base64,{b64_string}"},
},
]
)
]
)
base64_with_mime_type = f"data:image/png;base64,{b64_string}"
llm.invoke(f'What\'s in this image?\n<img src="{base64_with_mime_type}" />')
from langchain_nvidia_ai_endpoints import ChatNVIDIA
kosmos = ChatNVIDIA(model="kosmos_2")
from langchain_core.messages import HumanMessage
def drop_streaming_key(d):
"""Takes in payload dictionary, outputs new payload dictionary"""
if "stream" in d:
d.pop("stream")
return d
kosmos = ChatNVIDIA(model="kosmos_2")
kosmos.client.payload_fn = drop_streaming_key
kosmos.invoke(
[
HumanMessage(
content=[
{"type": "text", "text": "Describe this image:"},
{"type": "image_url", "image_url": {"url": image_url}},
]
)
]
)
import base64
from io import BytesIO
from PIL import Image
img_gen = ChatNVIDIA(model="sdxl_turbo")
def to_sdxl_payload(d):
if d:
d = {"prompt": d.get("messages", [{}])[0].get("content")}
d["inference_steps"] = 4 ## why not add another argument?
return d
img_gen.client.payload_fn = to_sdxl_payload
def to_pil_img(d):
return Image.open(BytesIO(base64.b64decode(d)))
(img_gen | StrOutputParser() | to_pil_img).invoke("white cat playing")
from langchain_core.messages import ChatMessage
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
from langchain_nvidia_ai_endpoints import ChatNVIDIA
prompt = ChatPromptTemplate.from_messages(
[
ChatMessage(
role="context", content="Parrots and Cats have signed the peace accord."
),
("user", "{input}"),
]
)
llm = | ChatNVIDIA(model="nemotron_qa_8b") | langchain_nvidia_ai_endpoints.ChatNVIDIA |
import zipfile
import requests
def download_and_unzip(url: str, output_path: str = "file.zip") -> None:
file_id = url.split("/")[-2]
download_url = f"https://drive.google.com/uc?export=download&id={file_id}"
response = requests.get(download_url)
if response.status_code != 200:
print("Failed to download the file.")
return
with open(output_path, "wb") as file:
file.write(response.content)
print(f"File {output_path} downloaded.")
with zipfile.ZipFile(output_path, "r") as zip_ref:
zip_ref.extractall()
print(f"File {output_path} has been unzipped.")
url = (
"https://drive.google.com/file/d/1rh1s1o2i7B-Sk1v9o8KNgivLVGwJ-osV/view?usp=sharing"
)
download_and_unzip(url)
directory_path = "./hogwarts"
from langchain_community.chat_loaders.facebook_messenger import (
FolderFacebookMessengerChatLoader,
SingleFileFacebookMessengerChatLoader,
)
loader = SingleFileFacebookMessengerChatLoader(
path="./hogwarts/inbox/HermioneGranger/messages_Hermione_Granger.json",
)
chat_session = loader.load()[0]
chat_session["messages"][:3]
loader = FolderFacebookMessengerChatLoader(
path="./hogwarts",
)
chat_sessions = loader.load()
len(chat_sessions)
from langchain_community.chat_loaders.utils import (
map_ai_messages,
merge_chat_runs,
)
merged_sessions = merge_chat_runs(chat_sessions)
alternating_sessions = list(map_ai_messages(merged_sessions, "Harry Potter"))
alternating_sessions[0]["messages"][:3]
from langchain.adapters.openai import convert_messages_for_finetuning
training_data = convert_messages_for_finetuning(alternating_sessions)
print(f"Prepared {len(training_data)} dialogues for training")
training_data[0][:3]
chunk_size = 8
overlap = 2
training_examples = [
conversation_messages[i : i + chunk_size]
for conversation_messages in training_data
for i in range(0, len(conversation_messages) - chunk_size + 1, chunk_size - overlap)
]
len(training_examples)
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-openai')
import json
import time
from io import BytesIO
import openai
my_file = BytesIO()
for m in training_examples:
my_file.write((json.dumps({"messages": m}) + "\n").encode("utf-8"))
my_file.seek(0)
training_file = openai.files.create(file=my_file, purpose="fine-tune")
status = openai.files.retrieve(training_file.id).status
start_time = time.time()
while status != "processed":
print(f"Status=[{status}]... {time.time() - start_time:.2f}s", end="\r", flush=True)
time.sleep(5)
status = openai.files.retrieve(training_file.id).status
print(f"File {training_file.id} ready after {time.time() - start_time:.2f} seconds.")
job = openai.fine_tuning.jobs.create(
training_file=training_file.id,
model="gpt-3.5-turbo",
)
status = openai.fine_tuning.jobs.retrieve(job.id).status
start_time = time.time()
while status != "succeeded":
print(f"Status=[{status}]... {time.time() - start_time:.2f}s", end="\r", flush=True)
time.sleep(5)
job = openai.fine_tuning.jobs.retrieve(job.id)
status = job.status
print(job.fine_tuned_model)
from langchain_openai import ChatOpenAI
model = ChatOpenAI(
model=job.fine_tuned_model,
temperature=1,
)
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import ChatPromptTemplate
prompt = ChatPromptTemplate.from_messages(
[
("human", "{input}"),
]
)
chain = prompt | model | | StrOutputParser() | langchain_core.output_parsers.StrOutputParser |
from langchain.chains import ConversationalRetrievalChain
from langchain.chains.query_constructor.base import AttributeInfo
from langchain.retrievers.self_query.base import SelfQueryRetriever
from langchain_community.document_loaders import TextLoader
from langchain_community.embeddings import FakeEmbeddings
from langchain_community.vectorstores import Vectara
from langchain_core.documents import Document
from langchain_openai import OpenAI
from langchain_text_splitters import CharacterTextSplitter
docs = [
Document(
page_content="A bunch of scientists bring back dinosaurs and mayhem breaks loose",
metadata={"year": 1993, "rating": 7.7, "genre": "science fiction"},
),
Document(
page_content="Leo DiCaprio gets lost in a dream within a dream within a dream within a ...",
metadata={"year": 2010, "director": "Christopher Nolan", "rating": 8.2},
),
Document(
page_content="A psychologist / detective gets lost in a series of dreams within dreams within dreams and Inception reused the idea",
metadata={"year": 2006, "director": "Satoshi Kon", "rating": 8.6},
),
Document(
page_content="A bunch of normal-sized women are supremely wholesome and some men pine after them",
metadata={"year": 2019, "director": "Greta Gerwig", "rating": 8.3},
),
Document(
page_content="Toys come alive and have a blast doing so",
metadata={"year": 1995, "genre": "animated"},
),
Document(
page_content="Three men walk into the Zone, three men walk out of the Zone",
metadata={
"year": 1979,
"rating": 9.9,
"director": "Andrei Tarkovsky",
"genre": "science fiction",
},
),
]
vectara = Vectara()
for doc in docs:
vectara.add_texts(
[doc.page_content],
embedding=FakeEmbeddings(size=768),
doc_metadata=doc.metadata,
)
from langchain.chains.query_constructor.base import AttributeInfo
from langchain.retrievers.self_query.base import SelfQueryRetriever
from langchain_openai import OpenAI
metadata_field_info = [
AttributeInfo(
name="genre",
description="The genre of the movie",
type="string or list[string]",
),
AttributeInfo(
name="year",
description="The year the movie was released",
type="integer",
),
AttributeInfo(
name="director",
description="The name of the movie director",
type="string",
),
AttributeInfo(
name="rating", description="A 1-10 rating for the movie", type="float"
),
]
document_content_description = "Brief summary of a movie"
llm = | OpenAI(temperature=0) | langchain_openai.OpenAI |
from langchain.evaluation import RegexMatchStringEvaluator
evaluator = RegexMatchStringEvaluator()
from langchain.evaluation import load_evaluator
evaluator = load_evaluator("regex_match")
evaluator.evaluate_strings(
prediction="The delivery will be made on 2024-01-05",
reference=".*\\b\\d{4}-\\d{2}-\\d{2}\\b.*",
)
evaluator.evaluate_strings(
prediction="The delivery will be made on 2024-01-05",
reference=".*\\b\\d{2}-\\d{2}-\\d{4}\\b.*",
)
evaluator.evaluate_strings(
prediction="The delivery will be made on 01-05-2024",
reference=".*\\b\\d{2}-\\d{2}-\\d{4}\\b.*",
)
evaluator.evaluate_strings(
prediction="The delivery will be made on 01-05-2024",
reference="|".join(
[".*\\b\\d{4}-\\d{2}-\\d{2}\\b.*", ".*\\b\\d{2}-\\d{2}-\\d{4}\\b.*"]
),
)
import re
evaluator = | RegexMatchStringEvaluator(flags=re.IGNORECASE) | langchain.evaluation.RegexMatchStringEvaluator |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-core langchain langchain-openai')
from langchain.utils.math import cosine_similarity
from langchain_core.output_parsers import StrOutputParser
from langchain_core.prompts import PromptTemplate
from langchain_core.runnables import RunnableLambda, RunnablePassthrough
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
physics_template = """You are a very smart physics professor. \
You are great at answering questions about physics in a concise and easy to understand manner. \
When you don't know the answer to a question you admit that you don't know.
Here is a question:
{query}"""
math_template = """You are a very good mathematician. You are great at answering math questions. \
You are so good because you are able to break down hard problems into their component parts, \
answer the component parts, and then put them together to answer the broader question.
Here is a question:
{query}"""
embeddings = OpenAIEmbeddings()
prompt_templates = [physics_template, math_template]
prompt_embeddings = embeddings.embed_documents(prompt_templates)
def prompt_router(input):
query_embedding = embeddings.embed_query(input["query"])
similarity = cosine_similarity([query_embedding], prompt_embeddings)[0]
most_similar = prompt_templates[similarity.argmax()]
print("Using MATH" if most_similar == math_template else "Using PHYSICS")
return | PromptTemplate.from_template(most_similar) | langchain_core.prompts.PromptTemplate.from_template |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-google-alloydb-pg langchain-google-vertexai')
from google.colab import auth
auth.authenticate_user()
PROJECT_ID = "my-project-id" # @param {type:"string"}
get_ipython().system('gcloud config set project {PROJECT_ID}')
get_ipython().system('gcloud services enable alloydb.googleapis.com')
REGION = "us-central1" # @param {type: "string"}
CLUSTER = "my-cluster" # @param {type: "string"}
INSTANCE = "my-primary" # @param {type: "string"}
DATABASE = "my-database" # @param {type: "string"}
TABLE_NAME = "vector_store" # @param {type: "string"}
from langchain_google_alloydb_pg import AlloyDBEngine
engine = await AlloyDBEngine.afrom_instance(
project_id=PROJECT_ID,
region=REGION,
cluster=CLUSTER,
instance=INSTANCE,
database=DATABASE,
)
await engine.ainit_vectorstore_table(
table_name=TABLE_NAME,
vector_size=768, # Vector size for VertexAI model(textembedding-gecko@latest)
)
get_ipython().system('gcloud services enable aiplatform.googleapis.com')
from langchain_google_vertexai import VertexAIEmbeddings
embedding = VertexAIEmbeddings(
model_name="textembedding-gecko@latest", project=PROJECT_ID
)
from langchain_google_alloydb_pg import AlloyDBVectorStore
store = await AlloyDBVectorStore.create(
engine=engine,
table_name=TABLE_NAME,
embedding_service=embedding,
)
import uuid
all_texts = ["Apples and oranges", "Cars and airplanes", "Pineapple", "Train", "Banana"]
metadatas = [{"len": len(t)} for t in all_texts]
ids = [str(uuid.uuid4()) for _ in all_texts]
await store.aadd_texts(all_texts, metadatas=metadatas, ids=ids)
await store.adelete([ids[1]])
query = "I'd like a fruit."
docs = await store.asimilarity_search(query)
print(docs)
query_vector = embedding.embed_query(query)
docs = await store.asimilarity_search_by_vector(query_vector, k=2)
print(docs)
from langchain_google_alloydb_pg.indexes import IVFFlatIndex
index = IVFFlatIndex()
await store.aapply_vector_index(index)
await store.areindex() # Re-index using default index name
await store.adrop_vector_index() # Delete index using default name
from langchain_google_alloydb_pg import Column
TABLE_NAME = "vectorstore_custom"
await engine.ainit_vectorstore_table(
table_name=TABLE_NAME,
vector_size=768, # VertexAI model: textembedding-gecko@latest
metadata_columns=[ | Column("len", "INTEGER") | langchain_google_alloydb_pg.Column |
import requests
def download_drive_file(url: str, output_path: str = "chat.db") -> None:
file_id = url.split("/")[-2]
download_url = f"https://drive.google.com/uc?export=download&id={file_id}"
response = requests.get(download_url)
if response.status_code != 200:
print("Failed to download the file.")
return
with open(output_path, "wb") as file:
file.write(response.content)
print(f"File {output_path} downloaded.")
url = (
"https://drive.google.com/file/d/1NebNKqTA2NXApCmeH6mu0unJD2tANZzo/view?usp=sharing"
)
download_drive_file(url)
from langchain_community.chat_loaders.imessage import IMessageChatLoader
loader = IMessageChatLoader(
path="./chat.db",
)
from typing import List
from langchain_community.chat_loaders.base import ChatSession
from langchain_community.chat_loaders.utils import (
map_ai_messages,
merge_chat_runs,
)
raw_messages = loader.lazy_load()
merged_messages = | merge_chat_runs(raw_messages) | langchain_community.chat_loaders.utils.merge_chat_runs |
from langchain_community.document_loaders import WebBaseLoader
from langchain_community.vectorstores import Chroma
from langchain_openai import OpenAIEmbeddings
from langchain_text_splitters import RecursiveCharacterTextSplitter
loader = WebBaseLoader("https://lilianweng.github.io/posts/2023-06-23-agent/")
data = loader.load()
text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=0)
splits = text_splitter.split_documents(data)
embedding = OpenAIEmbeddings()
vectordb = Chroma.from_documents(documents=splits, embedding=embedding)
from langchain.retrievers.multi_query import MultiQueryRetriever
from langchain_openai import ChatOpenAI
question = "What are the approaches to Task Decomposition?"
llm = ChatOpenAI(temperature=0)
retriever_from_llm = MultiQueryRetriever.from_llm(
retriever=vectordb.as_retriever(), llm=llm
)
import logging
logging.basicConfig()
logging.getLogger("langchain.retrievers.multi_query").setLevel(logging.INFO)
unique_docs = retriever_from_llm.get_relevant_documents(query=question)
len(unique_docs)
from typing import List
from langchain.chains import LLMChain
from langchain.output_parsers import PydanticOutputParser
from langchain.prompts import PromptTemplate
from pydantic import BaseModel, Field
class LineList(BaseModel):
lines: List[str] = Field(description="Lines of text")
class LineListOutputParser(PydanticOutputParser):
def __init__(self) -> None:
super().__init__(pydantic_object=LineList)
def parse(self, text: str) -> LineList:
lines = text.strip().split("\n")
return LineList(lines=lines)
output_parser = LineListOutputParser()
QUERY_PROMPT = PromptTemplate(
input_variables=["question"],
template="""You are an AI language model assistant. Your task is to generate five
different versions of the given user question to retrieve relevant documents from a vector
database. By generating multiple perspectives on the user question, your goal is to help
the user overcome some of the limitations of the distance-based similarity search.
Provide these alternative questions separated by newlines.
Original question: {question}""",
)
llm = ChatOpenAI(temperature=0)
llm_chain = | LLMChain(llm=llm, prompt=QUERY_PROMPT, output_parser=output_parser) | langchain.chains.LLMChain |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet lark chromadb')
from langchain_community.vectorstores import Chroma
from langchain_core.documents import Document
from langchain_openai import OpenAIEmbeddings
docs = [
Document(
page_content="A bunch of scientists bring back dinosaurs and mayhem breaks loose",
metadata={"year": 1993, "rating": 7.7, "genre": "science fiction"},
),
Document(
page_content="Leo DiCaprio gets lost in a dream within a dream within a dream within a ...",
metadata={"year": 2010, "director": "Christopher Nolan", "rating": 8.2},
),
Document(
page_content="A psychologist / detective gets lost in a series of dreams within dreams within dreams and Inception reused the idea",
metadata={"year": 2006, "director": "Satoshi Kon", "rating": 8.6},
),
Document(
page_content="A bunch of normal-sized women are supremely wholesome and some men pine after them",
metadata={"year": 2019, "director": "Greta Gerwig", "rating": 8.3},
),
Document(
page_content="Toys come alive and have a blast doing so",
metadata={"year": 1995, "genre": "animated"},
),
Document(
page_content="Three men walk into the Zone, three men walk out of the Zone",
metadata={
"year": 1979,
"director": "Andrei Tarkovsky",
"genre": "thriller",
"rating": 9.9,
},
),
]
vectorstore = Chroma.from_documents(docs, OpenAIEmbeddings())
from langchain.chains.query_constructor.base import AttributeInfo
from langchain.retrievers.self_query.base import SelfQueryRetriever
from langchain_openai import ChatOpenAI
metadata_field_info = [
AttributeInfo(
name="genre",
description="The genre of the movie. One of ['science fiction', 'comedy', 'drama', 'thriller', 'romance', 'action', 'animated']",
type="string",
),
AttributeInfo(
name="year",
description="The year the movie was released",
type="integer",
),
AttributeInfo(
name="director",
description="The name of the movie director",
type="string",
),
AttributeInfo(
name="rating", description="A 1-10 rating for the movie", type="float"
),
]
document_content_description = "Brief summary of a movie"
llm = | ChatOpenAI(temperature=0) | langchain_openai.ChatOpenAI |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet langchain-openai')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet psycopg2-binary')
get_ipython().run_line_magic('pip', 'install --upgrade --quiet tiktoken')
YBUSER = "[SANDBOX USER]"
YBPASSWORD = "[SANDBOX PASSWORD]"
YBDATABASE = "[SANDBOX_DATABASE]"
YBHOST = "trialsandbox.sandbox.aws.yellowbrickcloud.com"
OPENAI_API_KEY = "[OPENAI API KEY]"
import os
import pathlib
import re
import sys
import urllib.parse as urlparse
from getpass import getpass
import psycopg2
from IPython.display import Markdown, display
from langchain.chains import LLMChain, RetrievalQAWithSourcesChain
from langchain.docstore.document import Document
from langchain_community.vectorstores import Yellowbrick
from langchain_openai import ChatOpenAI, OpenAIEmbeddings
from langchain_text_splitters import RecursiveCharacterTextSplitter
yellowbrick_connection_string = (
f"postgres://{urlparse.quote(YBUSER)}:{YBPASSWORD}@{YBHOST}:5432/{YBDATABASE}"
)
YB_DOC_DATABASE = "sample_data"
YB_DOC_TABLE = "yellowbrick_documentation"
embedding_table = "my_embeddings"
os.environ["OPENAI_API_KEY"] = OPENAI_API_KEY
from langchain.prompts.chat import (
ChatPromptTemplate,
HumanMessagePromptTemplate,
SystemMessagePromptTemplate,
)
system_template = """If you don't know the answer, Make up your best guess."""
messages = [
SystemMessagePromptTemplate.from_template(system_template),
| HumanMessagePromptTemplate.from_template("{question}") | langchain.prompts.chat.HumanMessagePromptTemplate.from_template |
from typing import List
from langchain.prompts.chat import (
HumanMessagePromptTemplate,
SystemMessagePromptTemplate,
)
from langchain.schema import (
AIMessage,
BaseMessage,
HumanMessage,
SystemMessage,
)
from langchain_openai import ChatOpenAI
class CAMELAgent:
def __init__(
self,
system_message: SystemMessage,
model: ChatOpenAI,
) -> None:
self.system_message = system_message
self.model = model
self.init_messages()
def reset(self) -> None:
self.init_messages()
return self.stored_messages
def init_messages(self) -> None:
self.stored_messages = [self.system_message]
def update_messages(self, message: BaseMessage) -> List[BaseMessage]:
self.stored_messages.append(message)
return self.stored_messages
def step(
self,
input_message: HumanMessage,
) -> AIMessage:
messages = self.update_messages(input_message)
output_message = self.model(messages)
self.update_messages(output_message)
return output_message
import os
os.environ["OPENAI_API_KEY"] = ""
assistant_role_name = "Python Programmer"
user_role_name = "Stock Trader"
task = "Develop a trading bot for the stock market"
word_limit = 50 # word limit for task brainstorming
task_specifier_sys_msg = SystemMessage(content="You can make a task more specific.")
task_specifier_prompt = """Here is a task that {assistant_role_name} will help {user_role_name} to complete: {task}.
Please make it more specific. Be creative and imaginative.
Please reply with the specified task in {word_limit} words or less. Do not add anything else."""
task_specifier_template = HumanMessagePromptTemplate.from_template(
template=task_specifier_prompt
)
task_specify_agent = CAMELAgent(task_specifier_sys_msg, ChatOpenAI(temperature=1.0))
task_specifier_msg = task_specifier_template.format_messages(
assistant_role_name=assistant_role_name,
user_role_name=user_role_name,
task=task,
word_limit=word_limit,
)[0]
specified_task_msg = task_specify_agent.step(task_specifier_msg)
print(f"Specified task: {specified_task_msg.content}")
specified_task = specified_task_msg.content
assistant_inception_prompt = """Never forget you are a {assistant_role_name} and I am a {user_role_name}. Never flip roles! Never instruct me!
We share a common interest in collaborating to successfully complete a task.
You must help me to complete the task.
Here is the task: {task}. Never forget our task!
I must instruct you based on your expertise and my needs to complete the task.
I must give you one instruction at a time.
You must write a specific solution that appropriately completes the requested instruction.
You must decline my instruction honestly if you cannot perform the instruction due to physical, moral, legal reasons or your capability and explain the reasons.
Do not add anything else other than your solution to my instruction.
You are never supposed to ask me any questions you only answer questions.
You are never supposed to reply with a flake solution. Explain your solutions.
Your solution must be declarative sentences and simple present tense.
Unless I say the task is completed, you should always start with:
Solution: <YOUR_SOLUTION>
<YOUR_SOLUTION> should be specific and provide preferable implementations and examples for task-solving.
Always end <YOUR_SOLUTION> with: Next request."""
user_inception_prompt = """Never forget you are a {user_role_name} and I am a {assistant_role_name}. Never flip roles! You will always instruct me.
We share a common interest in collaborating to successfully complete a task.
I must help you to complete the task.
Here is the task: {task}. Never forget our task!
You must instruct me based on my expertise and your needs to complete the task ONLY in the following two ways:
1. Instruct with a necessary input:
Instruction: <YOUR_INSTRUCTION>
Input: <YOUR_INPUT>
2. Instruct without any input:
Instruction: <YOUR_INSTRUCTION>
Input: None
The "Instruction" describes a task or question. The paired "Input" provides further context or information for the requested "Instruction".
You must give me one instruction at a time.
I must write a response that appropriately completes the requested instruction.
I must decline your instruction honestly if I cannot perform the instruction due to physical, moral, legal reasons or my capability and explain the reasons.
You should instruct me not ask me questions.
Now you must start to instruct me using the two ways described above.
Do not add anything else other than your instruction and the optional corresponding input!
Keep giving me instructions and necessary inputs until you think the task is completed.
When the task is completed, you must only reply with a single word <CAMEL_TASK_DONE>.
Never say <CAMEL_TASK_DONE> unless my responses have solved your task."""
def get_sys_msgs(assistant_role_name: str, user_role_name: str, task: str):
assistant_sys_template = SystemMessagePromptTemplate.from_template(
template=assistant_inception_prompt
)
assistant_sys_msg = assistant_sys_template.format_messages(
assistant_role_name=assistant_role_name,
user_role_name=user_role_name,
task=task,
)[0]
user_sys_template = SystemMessagePromptTemplate.from_template(
template=user_inception_prompt
)
user_sys_msg = user_sys_template.format_messages(
assistant_role_name=assistant_role_name,
user_role_name=user_role_name,
task=task,
)[0]
return assistant_sys_msg, user_sys_msg
assistant_sys_msg, user_sys_msg = get_sys_msgs(
assistant_role_name, user_role_name, specified_task
)
assistant_agent = CAMELAgent(assistant_sys_msg, ChatOpenAI(temperature=0.2))
user_agent = CAMELAgent(user_sys_msg, ChatOpenAI(temperature=0.2))
assistant_agent.reset()
user_agent.reset()
user_msg = HumanMessage(
content=(
f"{user_sys_msg.content}. "
"Now start to give me introductions one by one. "
"Only reply with Instruction and Input."
)
)
assistant_msg = HumanMessage(content=f"{assistant_sys_msg.content}")
assistant_msg = assistant_agent.step(user_msg)
print(f"Original task prompt:\n{task}\n")
print(f"Specified task prompt:\n{specified_task}\n")
chat_turn_limit, n = 30, 0
while n < chat_turn_limit:
n += 1
user_ai_msg = user_agent.step(assistant_msg)
user_msg = | HumanMessage(content=user_ai_msg.content) | langchain.schema.HumanMessage |
import os
os.environ["GOLDEN_API_KEY"] = ""
from langchain_community.utilities.golden_query import GoldenQueryAPIWrapper
golden_query = | GoldenQueryAPIWrapper() | langchain_community.utilities.golden_query.GoldenQueryAPIWrapper |
get_ipython().run_line_magic('pip', 'install --upgrade --quiet atlassian-python-api')
import os
from langchain.agents import AgentType, initialize_agent
from langchain_community.agent_toolkits.jira.toolkit import JiraToolkit
from langchain_community.utilities.jira import JiraAPIWrapper
from langchain_openai import OpenAI
os.environ["JIRA_API_TOKEN"] = "abc"
os.environ["JIRA_USERNAME"] = "123"
os.environ["JIRA_INSTANCE_URL"] = "https://jira.atlassian.com"
os.environ["OPENAI_API_KEY"] = "xyz"
llm = | OpenAI(temperature=0) | langchain_openai.OpenAI |