How to use strongtyping-pyoverload on a module based level

Overloading function

• module_a.py

from strongtyping_pyoverload import overload


@overload
def module_func():
    return 0


@overload
def module_func(a: int, b: int):
    return a * b


@overload
def module_func(a: str, b: str):
    return a + b

>>> from module_a import module_func
>>> module_func()
0
>>> module_func(2, 2)
4
>>> module_func("foo", "bar")
"foobar"

No function matches

When no function matches, an InvalidOverloadException will be raised. It is importable from strongtyping_pyoverload.exception:

from strongtyping_pyoverload.exception import InvalidOverloadException

>>> from module_a import module_func
>>> module_func(21)
InvalidOverloadException: No function was found which matches your parameters `(21,), {}`