testing envirenmental variables

app.py

@@ -83,7 +83,9 @@ def convert_image_to_required_format(image):
 
 def process_image_with_openai(image):
     image_data = convert_image_to_required_format(image)
-    openai_api_key = os.getenv('OPENAI_API_KEY')  # Make sure to have this in your .env file
+    openai_api_key = os.getenv('OPENAI_API_KEY') 
+    if openai_api_key is None:
+        raise Exception("OPENAI_API_KEY not found in environment variables")
 
     data_payload = {
         "model": "gpt-4-vision-preview",