hasattr with functions

Question

How to check attr existence in function or method with hasattr (or without)? When I try to check it is False in any way:

>>> def f():
        at = True


>>> hasattr(f, 'at')
False
>>> hasattr(f(), 'at')
False

Answer 1

Local variables are not attributes. You cannot use any *attr() to frob them.

Answer 2

It should work, look at below example.

>>> def f():
...    f.at = True
...
>>> hasattr(f, 'at')
False
>>> f()
>>> hasattr(f, 'at')
True