Class-Argparse

Class based argument parser to simplify writing CLIs that have lots of options

How to use

from typing import Literal

class Main(ClassArgParser):

    def __init__(self) -> None:
        super().__init__(name="Class ArgParser")

    def no_args(self):
        print("no_args")

    def some_args(self, arg: str):
        print("some_args", arg)

    def default_values(self, arg: str, default: int = 0):
        print("default_values", arg, default)

    def list_values(self, values: List[str]):
        print("list_values", values)

    def untyped_arg(self, untyped):
        print("untyped_arg", untyped)

    async def async_func(self, arg: str):
        print("async_func", arg)

    def literal_options(self, arg: Literal["a", "b"]):
        print("literal_options", arg)

if __name__ == "__main__":
    Main()()

How this works

1. The class ClassArgParser extends ArgumentParser
2. The initialization function finds add adds all the methods on child classes that are public i.e. their names don't start with __
3. The object of the class is called and after identifying whether the function being called it is async or sync it runs the function accordingly