update_

main.py

@@ -249,16 +249,37 @@ def compute_marks():
 
         # Add validation for answers
         def validate_answers(answers):
-            if not isinstance(answers, list):
-                return False
-            if not all(isinstance(ans, str) for ans in answers):
+            try:
+                if not isinstance(answers, list):
+                    return False
+                # Check if each answer is a string or a list of strings
+                for ans in answers:
+                    if isinstance(ans, str):
+                        continue
+                    elif isinstance(ans, list):
+                        if not all(isinstance(a, str) for a in ans):
+                            return False
+                    else:
+                        return False
+                return True
+            except Exception as e:
+                log_print(f"Validation error: {str(e)}", "ERROR")
                 return False
-            return True
 
         if not validate_answers(answers):
             log_print("Invalid answer format", "ERROR")
+            log_print(f"Received answer structure: {answers}", "ERROR")
             return jsonify({"error": "Invalid answer format"}), 400
 
+        # Process answers to ensure consistent format
+        processed_answers = []
+        for ans in answers:
+            if isinstance(ans, str):
+                processed_answers.append([ans])
+            else:
+                processed_answers.append(ans)
+        answers = processed_answers
+
         # Initialize data structure and parent folder
         data = {}
         parent_folder = ans_image_dir  # Use the temp directory path defined earlier