{
  "context": "This evaluation assesses how well the engineer understands and applies Python's scope and name resolution rules (LEGB), particularly closure variable capture, the nonlocal and global keywords, and UnboundLocalError behavior.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Closure capture technique",
      "description": "In create_closure_functions(), properly captures loop variables using either default arguments (e.g., lambda i=i: i) or by creating a factory function that returns a closure. Avoids the late binding pitfall where all functions would return the same value.",
      "max_score": 25
    },
    {
      "name": "Lambda closure capture",
      "description": "In create_lambda_closures(), correctly captures values from the list using lambda with proper binding (e.g., lambda v=val: v or similar technique) to ensure each lambda returns the corresponding value from the original list.",
      "max_score": 20
    },
    {
      "name": "Nonlocal keyword usage",
      "description": "In modify_with_nonlocal(), correctly uses the 'nonlocal' keyword within a nested function to modify a variable from the enclosing scope. The inner function successfully modifies the enclosing variable and the modified value is returned.",
      "max_score": 20
    },
    {
      "name": "Global keyword usage",
      "description": "In set_global_counter(), correctly uses the 'global' keyword to modify the module-level 'counter' variable. Declares 'global counter' before assigning to it.",
      "max_score": 20
    },
    {
      "name": "UnboundLocalError demonstration",
      "description": "In trigger_unbound_local_error(), correctly demonstrates UnboundLocalError by attempting to read or use a variable (e.g., with print() or in an expression) before assigning to it in the same local scope. This must actually trigger the error, not just raise it manually.",
      "max_score": 15
    }
  ]
}