Update app.py

app.py

@@ -18,7 +18,7 @@ def generate_qr_code(text: str, size: str = "medium", error_correction: str = "M
     """
     
     if not text.strip():
-        return {"error": "Input cannot be empty."}
+        return "Error: Input cannot be empty."
     
     size_map = {
         "small": 5,
@@ -50,9 +50,8 @@ def generate_qr_code(text: str, size: str = "medium", error_correction: str = "M
         img.save(buffer, format="PNG")
         img_base64 = base64.b64encode(buffer.getvalue()).decode()
         
-        return {
-            f"data:image/png;base64,{img_base64}"
-        }
+        return f"data:image/png;base64,{img_base64}"
+        
         
     except Exception as e:
         return f"Error: Failed to generate QR code: {str(e)}"