Simple CLI parser.

cli_parser.py

import sys


class ProgramArguments:
    def __init__(self):
        self.args = []
        self.flags = dict()

    def is_set(self, flag: str) -> bool:
        return str in self.flags

    def __str__(self) -> str:
        return "Args:" + self.args.__str__() + "\nFlags:" + self.flags.__str__()


def parse_args() -> ProgramArguments:
    program_arguments = ProgramArguments()
    last_named_value: str = ""
    for arg in sys.argv:
        if arg.startswith("--") and arg != "--":
            last_named_value = arg[2:]
            program_arguments.flags[last_named_value] = None
        elif arg.startswith("-") and arg != "-":
            last_named_value = arg[1:]
            program_arguments.flags[last_named_value] = None
        elif last_named_value:
            program_arguments.flags[last_named_value] = arg
        else:
            last_named_value = ""
            program_arguments.args.append(arg)
    return program_arguments