add messages

app.py

@@ -23,12 +23,19 @@ def pdf_changes(pdf_doc, open_ai_key):
     if openai_key is not None:
         os.environ['OPENAI_API_KEY'] = open_ai_key
         loader = OnlinePDFLoader(pdf_doc.name)
+        print(loader)
         documents = loader.load()
+        print(documents)
         text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
+        print(text_splitter)
         texts = text_splitter.split_documents(documents)
+        print(texts)
         embeddings = OpenAIEmbeddings()
+        print(embeddings)
         db = Chroma.from_documents(texts, embeddings)
+        print(db)
         retriever = db.as_retriever()
+        print(retriever)
         global qa
         qa = ConversationalRetrievalChain.from_llm(
             llm=OpenAI(temperature=0.5),
@@ -40,15 +47,20 @@ def pdf_changes(pdf_doc, open_ai_key):
 
 def add_text(history, text):
     history = history + [(text, None)]
+    print(history)
     return history, ""
 
 def bot(history):
     response = infer(history[-1][0], history)
+    print('bot response:')
+    print(response)
     history[-1][1] = ""
 
     for character in response:
         history[-1][1] += character
+        print("history")
         time.sleep(0.05)
+        print(history)
         yield history
 
 
@@ -64,6 +76,8 @@ def infer(question, history):
     query = question
     result = qa({"question": query, "chat_history": chat_history})
     #print(result)
+    print("infer result")
+    print(result)
     return result["answer"]
 
 css="""