How do I call sys.argv list inside a function, from the CLI?

[Gribouillis]

Better use the arparse module from the standard library to handle CLI arguments

import argparse

class Hardware:
    pass
class Spam:
    pass
class Eggs:
    pass

if __name__ == '__main__':
    functions = {'Hardware': Hardware,
                 'Spam': Spam,
                 'Eggs': Eggs}

    parser = argparse.ArgumentParser()
    parser.add_argument(
        '--connect', '-c',
        choices=functions.values(),
        nargs='*',
        action='extend',
        dest='inlist',
        type=functions.get)
    ns = parser.parse_args()
    print(ns.inlist)
    for f in ns.inlist:
        f()

Output:
$ python paillasse/pf/billy.py -c Hardware Eggs
[<class '__main__.Hardware'>, <class '__main__.Eggs'>]