Am Mittwoch, 13. Dezember 2017 22:28:50 UTC+1 schrieb Edward K. Ream:
def a_generator():
> if 0:
> yield 'abc' # Makes the function a generator
> return None
>
This only works with Python 3. Python 2 does not support mixing return and
yield.
It's also overcomplicated. a_generator is just an empty function, doing
nothing to the list. But in this case you could also just use an empty
list. aList.extend([]) or aList.extend(list()) are doing the exact same,
while working out of the box everywhere.
for node in ast.walk(root):
> classes_list.extend(do_class(node))
>
Proper way to handle this is
classes_list.extend(do_class(node if node else []))
or
for node in ast.walk(root):
if node:
classes_list.extend(do_class(node))
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