personal-data/personal_data/__main__.py

import personal_data
import argparse

def parse_arguments():
    parser = argparse.ArgumentParser()
    parser.add_argument('fetchers', metavar='FETCHER', type=str, nargs='+')
    return parser.parse_args()

def main():
    args = parse_arguments()
    scraper_filter = frozenset(args.fetchers)
    personal_data.main(scraper_filter)

if __name__ == '__main__':
    main()