Update app.py

app.py

@@ -116,8 +116,7 @@ class Chatbot():
         openai.api_key = os.getenv('OPENAI_API_KEY')
         embedding_model = "text-embedding-ada-002"
         # This is going to create embeddings for subsets of the PDF
-        embeddings = np.vstack(df.text.apply(lambda x: get_embedding(x, engine=embedding_model)))
-        embeddings = np.array(embeddings, dtype=np.float32)
+        embeddings = np.vstack(df[df['text'].apply(lambda x: isinstance(x, str))]['text'].apply(lambda x: get_embedding(x, engine=embedding_model)))
         return embeddings    
 
     def search_embeddings(self, embeddings, df, query, n=3, pprint=True):