Update app.py

app.py

@@ -404,7 +404,7 @@ def initialize_gemini_model():
         print("Initializing Gemini API...")
         genai.configure(api_key=gemini_api_key)
         gemini_model = genai.GenerativeModel('gemma-3n-e4b-it')
-        print("✅ Gemini API model ready")
+        print("✅ Gemini API model ready (gemma-3n-e4b-it)")
         return gemini_model
     except Exception as e:
         print(f"❌ Error initializing Gemini model: {e}")
@@ -419,6 +419,7 @@ def generate_alt_text_for_image(pil_image):
         # Initialize Gemini model
         model = initialize_gemini_model()
         if model is None:
+            print("❌ Gemini model not initialized for alt text generation")
             return "Image description unavailable"
         
         # Create a detailed prompt for alt text generation
@@ -432,9 +433,17 @@ Focus on:
 
 Provide a descriptive alt text in 1-2 sentences that is informative but not overly verbose. Start directly with the description without saying "This image shows" or similar phrases."""
         
-        # Generate alt text using Gemini API
+        print(f"🔍 Generating alt text for image...")
+        
+        # Generate alt text using Gemini API with proper multimodal input
         response = model.generate_content([prompt, pil_image])
-        alt_text = response.text.strip() if hasattr(response, 'text') else "Image description unavailable"
+        
+        if hasattr(response, 'text') and response.text:
+            alt_text = response.text.strip()
+            print(f"✅ Alt text generated: {alt_text[:100]}...")
+        else:
+            print(f"❌ No text in response: {response}")
+            return "Image description unavailable"
         
         # Clean up the alt text
         alt_text = alt_text.replace('\n', ' ').replace('\r', ' ')
@@ -448,7 +457,9 @@ Provide a descriptive alt text in 1-2 sentences that is informative but not over
         return alt_text if alt_text else "Image description unavailable"
         
     except Exception as e:
-        print(f"Error generating alt text: {e}")
+        print(f"❌ Error generating alt text: {e}")
+        import traceback
+        traceback.print_exc()
         return "Image description unavailable"