Update utils/utils.py

utils/utils.py

@@ -113,14 +113,14 @@ def read_pptx_text(file_path):
 # Input validation
 
 def validate_input(question, openai_api_key, gemini_api_key, anthropic_api_key, file_name):
-    var is_valid = True
+    is_valid = True
 
     if question.len() > 500 or
        openai_api_key.len() > 150 or 
        gemini_api_key.len() > 150 or
        anthropic_api_key.len() > 150 or
        file_name > 150:
-        result = False
+        is_valid = False
     
     # Allow: letters, numbers, spaces, basic punctuation, common symbols
     # Block: HTML tags, script injection, control characters, etc.