ConfigType.py

import argparse


class ConfigType(type):
    def __new__(mcls, name, bases, attrs):
        if name.startswith('None'):
            return None

        print(attrs)
        mcls.parse_args()

        newattrs = {}
        for attrname, attrvalue in attrs.items():
            if not attrname.startswith('__'):
                newattrs[attrname] = getattr(mcls.args, attrname)

        return super(ConfigType, mcls).__new__(mcls, name, bases, newattrs)

    def __init__(self, name, bases, attrs):
        super(ConfigType, self).__init__(name, bases, attrs)

        # classregistry.register(self, self.interfaces)
        print("Would register class %s now." % self)

    @classmethod
    def add(cls, *args, **kwargs):
        print('Add to argparse')
        cls.parser.add_argument(*args, **kwargs)

    @classmethod
    def parse_args(cls):
        # ConfigType.build_parser()
        cls.args = cls.parser.parse_args()

    def __getattr__(self, attr):
        print(attr)
        return attr

    parser = argparse.ArgumentParser()