Update app.py

app.py

@@ -30,16 +30,18 @@ data_source = st.sidebar.selectbox(
 # --- API CALLING FUNCTIONS ---  
 def fetch_openweather_data(lat, lon, datetime_input):  
     """Fetches historical weather data from OpenWeather's One Call API."""  
-# Construct the URL for the API call  
+    # Construct the URL for the API call  
     url = f"https://api.openweathermap.org/data/3.0/onecall/timemachine?lat={lat}&lon={lon}&dt={int(datetime_input.timestamp())}&appid={OPENWEATHER_API_KEY}&units=metric"  
-    
     try:  
-        response = requests.get(url)  
-        response.raise_for_status()  # Raise HTTPError for bad responses  
-        return response.json()  
-    except requests.exceptions.RequestException as e:  
-        st.error(f"Error fetching OpenWeather data: {e}")  
-        return None   
+        response = requests.get(url)  # Make the API call  
+        response.raise_for_status()  # Raise an error for bad responses  
+        data = response.json()  # Parse JSON response  
+        return data  
+    except requests.exceptions.HTTPError as http_err:  
+        st.error(f"HTTP error occurred: {http_err}")  
+    except Exception as err:  
+        st.error(f"An error occurred: {err}")  
+        
 
 def fetch_openweather_forecast(lat, lon):  
     """Fetches 7-day weather forecast data from OpenWeather's One Call API."""