Update app.py

app.py

@@ -7,7 +7,8 @@ import tempfile
 # Configure the Gemini API
 GOOGLE_API_KEY = os.getenv("gemini_api")  # Ensure your API key is set
 client = genai.Client(api_key=GOOGLE_API_KEY)
-
+global chat
+chat=None
 def transcribe_audio(audio_path):
     """
     Transcribe the audio file using the Gemini API.
@@ -42,7 +43,7 @@ def chat_with_gemini(user_input, history):
     """
     if history is None or not isinstance(history, list):  # Ensure history is initialized
         history = []
-    global chat
+    
     # Initialize or continue conversation
     if chat is None:
         chat = client.chats.create(model="gemini-2.0-flash")  # Initialize chat once