website/content/blog/exportpydecorator.md

title	date	draft	tags
Quick Python: Export Decorator	2020-06-14T22:15:38-04:00	false

A great StackOverflow post by Aaron Hall that shows how you can create an export decorator in order to not have to specify all the names you want to expose via __all__.

The Decorator:

import sys

def export(fn):
    mod = sys.modules[fn.__module__]
    if hasattr(mod, '__all__'):
        mod.__all__.append(fn.__name__)
    else:
        mod.__all__ = [fn.__name__]
    return fn

Usage:

__all__ = []

@export # otherwise __all__ = ['test']
def test():
    print("test")