Absolutely on naming. The python module "optparse", which was standard for quite some time, did not have any way to specify that a flag must be passed. As soo

Absolutely on naming. The python module "optparse", which was standard for quite some time, did not have any way to specify that a flag must be passed. As soon as the newer version "argparse" came out, this could be specified. All the documentation pointed that "mandatory option" was a contradiction, not realizing that they were the ones who had labeled it as an "option" in the first place.