For example I have foo(...):
def foo(arg1: str, arg2: int, ...):
...
And I want to get this:
{'arg1': str, 'arg2': int, ...}
Please share with me if anyone knows anything about the answer.
How to get function arguments type?
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1 Answers
This can be accessed via the __annotations__ attribute of a function object for Python versions >= 3.0:
type_annotation_dict = foo.__annotations__
Which should directly result in a dictionary mapping the parameter names to their type annotations:
{'arg1': str, 'arg2': int}
See also PEP 3107.
Additionally, the typing standard library module has a function get_type_hints which provides some additional functionality. See the Python docs on this function for more information.
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