Created
November 26, 2019 14:18
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| import gc | |
| import sys | |
| import inspect | |
| from types import FunctionType | |
| from typeguard import check_type | |
| def annotation_checker(frame, event, arg): | |
| try: | |
| func = [obj for obj in gc.get_referrers(frame.f_code) if isinstance(obj, FunctionType)][0] | |
| except IndexError: # Not a function | |
| return | |
| if event == 'return': | |
| check_type(func.__name__, arg, func.__annotations__['return']) | |
| sys.setprofile(annotation_checker) | |
| def test() -> int: | |
| return 'a' | |
| test() |
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