Update app.py

app.py

@@ -4,8 +4,9 @@ from transformers import AutoTokenizer
 from langchain.chat_models import ChatOpenAI
 
 # access token with permission to access the model and PRO subscription
-hf_token = "YOUR_HF_TOKEN" # <https://huggingface.co/settings/tokens>
-login(token=hf_token)
+HUGGINGFACEHUB_API_TOKEN = os.getenv("HF_ACCESS_READ")
+OAI_API_KEY=os.getenv("OPENAI_API_KEY")
+login(token=HUGGINGFACEHUB_API_TOKEN)
 
 # tokenizer for generating prompt
 tokenizer = AutoTokenizer.from_pretrained("meta-llama/Llama-2-70b-chat-hf")
@@ -30,7 +31,6 @@ def generate(text):
 assert generate("What is 2+2?") == "The answer to 2+2 is 4."
 
 # create evaluator
-os.environ["OPENAI_API_KEY"] = "YOUR_OPENAI_API_KEY" # https://platform.openai.com/account/api-keys
-assert os.environ.get("OPENAI_API_KEY") is not None, "Please set OPENAI_API_KEY environment variable"
+assert OAI_API_KEY is not None, "Please set OPENAI_API_KEY environment variable"
 
 evaluation_llm = ChatOpenAI(model="gpt-4")