argparse

getopt vs optparse vs argparse vs docopt

• 15.6. getopt — C-style parser for command line options

• 15.5. optparse — Parser for command line options

  Deprecated since version 2.7: The optparse module is deprecated and will not be developed further; development will continue with the argparse module.
  

• 15.4. argparse — Parser for command-line options, arguments and sub-commands

• docopt — Command-line interface description language

References

[1] Docs@Python, 15.4. argparse — Parser for command-line options, arguments and sub-commands