Update parser.py

parser.py

@@ -45,6 +45,11 @@ def get_value(node):
     elif isinstance(node, ast.Call):
         return '<function_call>'
     return '<complex>'
+def is_blank_or_comment(line):
+    """Check if a line is blank or a comment."""
+    stripped = line.strip()
+    return not stripped or stripped.startswith('#')
+
 
 def collect_variable_usage(tree):
     """Collect definitions and uses of variables, respecting scope."""