my new fabric wrapping technique is unstoppable

gistfile1.py

DESC = "command description goes here"

def usage():
    print "%s - %s\n" % (__file__, DESC)
    print "Note: use %s --fab-help to get help on arguments specific to" % __file__
    print "      fabric (roles, hosts, parallel execution, etc.)\n"
    new_argv = ['fab', '-f', __file__, '--list']
    sys.argv = new_argv
    fabric.main.main()

if __name__ == "__main__":
    import fabric.main
    import sys
    sys.argv.pop(0)

    #XXX: do custom preprocessing of argv here (e.g. replace a custom flag with a flag fabric is expecting)

    if not sys.argv or '--help' in sys.argv:
        usage()
    elif '--fab-help' in sys.argv:
        new_argv = ['fab', '-f', __file__, '--help']
    else:
        new_argv = ['fab', '-f', __file__] + sys.argv
    sys.argv = new_argv
    fabric.main.main()

# $ cmd.py
# will show you a nice description and list of subcommands

# $ cmd.py --help
# will show the same

# $ cmd.py --list
# will show a nice short list of subcommands

# $ cmd.py --fab-help
# will show the complete list of fabric-specific options