Sorry for the misleading snippet above.

And how about this one:

>>> import inspect                      
>>> a = 0                               
>>> b = 1
>>> c = 2                               
>>> def abc():                          
>>>     return a.b                                                      
>>> print(inspect.getclosurevars(abc))  

ClosureVars(nonlocals={}, globals={'a': 0, 'b': 1}, builtins={}, unbound=set())

If this is not a bug, the "globals" is the "function's module globals", but why 'c' not in the "globals"?