Update app.py

app.py

@@ -31,7 +31,7 @@ def get_weather(location: str, celsius: Optional[bool] = False) -> str:
     Returns:
         A string describing the current weather at the location.
     """
-    api_key = weatherstack.Client(os.getenv"weather_api_key"))  # Replace with your API key from https://weatherstack.com/
+    api_key = "weather_api_key"  # Replace with your API key from https://weatherstack.com/
     units = "m" if celsius else "f"  # 'm' for Celsius, 'f' for Fahrenheit
 
     url = f"http://api.weatherstack.com/current?access_key={api_key}&query={location}&units={units}"