import argparse

import sys

def main(argv):

    parser = argparse.ArgumentParser(

        description='Parse -e arguments instead of RPM getopt.'

    )

    parser.add_argument('-e', '--toxenv', action='append')

    args, _ = parser.parse_known_args(argv)

    return ','.join(args.toxenv)

if __name__ == '__main__':

    print(main(sys.argv[1:]))