Create app.py

app.py

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+import streamlit as st
+import openai
+import os
+
+# Set the OpenAI API key from Hugging Face Secrets
+openai.api_key = os.getenv('API_KEY')
+
+st.title("ChatGPT-powered Chatbot")
+
+# Initialize session state to store the conversation
+if 'messages' not in st.session_state:
+    st.session_state.messages = []
+
+# Display previous messages
+for message in st.session_state.messages:
+    st.write(f"**{message['role'].capitalize()}:** {message['content']}")
+
+# Input for user message
+user_input = st.text_input("You:", "")
+
+if user_input:
+    # Add user message to session state
+    st.session_state.messages.append({"role": "user", "content": user_input})
+
+    # Prepare messages for API call
+    messages = [{"role": msg["role"], "content": msg["content"]} for msg in st.session_state.messages]
+
+    # Call OpenAI API
+    response = openai.ChatCompletion.create(
+        model="gpt-3.5-turbo",
+        messages=messages
+    )
+
+    # Get assistant's reply
+    assistant_reply = response['choices'][0]['message']['content']
+
+    # Add assistant's reply to session state
+    st.session_state.messages.append({"role": "assistant", "content": assistant_reply})
+
+    # Display assistant's reply
+    st.write(f"**Assistant:** {assistant_reply}")