Update app.py

app.py

@@ -4,7 +4,11 @@ import time
 
 import openai
 from dotenv import load_dotenv
+
+# Load environment variables from .env file
 load_dotenv()
+
+# Set OpenAI API key from environment variable
 openai.api_key = os.getenv("OPENAI_API_KEY")
 
 import gradio as gr
@@ -14,12 +18,16 @@ messages = []
 
 # Function to add user's text to chat history
 def add_user_text(chat_history, user_text):
+    # Print the user's text from typing
     print('user_text_from_typing: ', user_text)
 
     global messages
+    # Add user's text to the messages list with 'user' role
     messages += [{"role":'user', 'content': user_text}]
 
+    # Add user's text to the chat history
     chat_history = chat_history + [(user_text, None)]
+    # Return updated chat history and update the display without interaction
     return chat_history, gr.update(value="", interactive=False)
 
 # Function for the bot to respond
@@ -35,11 +43,13 @@ def bot_respond(chat_history, openai_gpt_key, model_choice):
             messages=messages,
         )
     bot_text = bot_response["choices"][0]["message"]["content"]
+    # Print the bot's response
     print("bot_text: ", bot_text)
 
+    # Add bot's response to the messages list with 'assistant' role
     messages = messages + [{"role":'assistant', 'content': bot_text}]
 
-    print(chat_history)
+    # Clear the last entry in the chat history
     chat_history[-1][1] = ""
 
     # Yield the chat history with the bot's response character by character
@@ -50,12 +60,20 @@ def bot_respond(chat_history, openai_gpt_key, model_choice):
 
 # Create a Gradio interface
 with gr.Blocks() as demo:
+    # Textbox for OpenAI GPT API Key
     openai_gpt_key = gr.Textbox(label="OpenAI GPT API Key", value="", placeholder="sk..")
-    model_choice = gr.Dropdown(label="Model Options", choices=['gpt-3.5-turbo', 'gpt-4'],info = "For better results choose GPT4, for faster and cheaper responses, GPT3.5")
+    
+    # Dropdown menu for selecting the model
+    model_choice = gr.Dropdown(label="Model Options", choices=['gpt-3.5-turbo', 'gpt-4'])
+    
+    # Button to clear the chat history and restart
     clear_btn = gr.Button("Clear for Restart")
+    
+    # Chat history display
     chat_history = gr.Chatbot([], elem_id="chat_history").style(height=500)
 
     with gr.Box():
+        # Textbox for user input
         user_text = gr.Textbox(
             show_label=False,
             placeholder="Enter text and press enter",
@@ -67,8 +85,11 @@ with gr.Blocks() as demo:
             bot_respond, [chat_history, openai_gpt_key, model_choice], chat_history).then(
                 lambda: gr.update(interactive=True), None, [user_text], queue=False)
 
+    # Clear button click event
     clear_btn.click(lambda: None, None, chat_history, queue=False)
 
 if __name__ == "__main__":
+    # Queue the Gradio interface
     demo.queue()
+    # Launch the Gradio interface
     demo.launch()