BePosPliz

BePosPliz (be positional please) is a lightweight module to anonymize the arguments of a function.

Relevant PEP: https://peps.python.org/pep-0646

I am not really sure if this has a real world purpose, but playing with new Python features is very enjoyable. I appreciate the effort to improve type expressiveness, and I am looking forward to PEPs 695 and 696 for even more fun :D

Features

anon_args

Usage

Let the following function:

from bepospliz import anon_args

@anon_args
def div(a: int, b: int) -> float:
    """Divide a by b"""
    return a / b

div's original signature is div(a: int, b: int) -> float.

With the decorator @anon_args, it becomes div(int, int) -> float, meaning that it cannot be called by specifically naming the args anymore (e.g. div(b=3, a=2))

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Signature

anon_args(function: Callable[[*Ps], R]) -> Callable[[*Ps], R]

with Ps being the set of types of function's arguments, and R its return type.

Example

Given the previous div function, Ps would be (int, int) and R would be float.