gistfile1.py

#!/usr/bin/env python3

from sys import stdin

lines = stdin.readlines()

for opt, desc in (line.strip().split(None, 1) for line in lines[2:-2]):
    has_args = 'Flag' not in desc and 'Print' not in desc
    line = ''
    if has_args:
        line += '='
    #line += '[FIXME]'
    if has_args:
        line += ':{}:'.format(desc.replace(':', '\\:').replace("'", "'\\''"))
        if 'Choices: ' in desc:
            choices = desc.partition('Choices: ')[2].partition('(')[0].strip().split()
            line += '(({}))'.format(' '.join(choices))
    if has_args or 'Print' in desc or opt.startswith('--no-'):
        print("'{}{}' \\".format(opt, line))
    else:
        negated_opt = ''.join((opt[:2], 'no-', opt[2:]))
        print("'({}){}{}' \\".format(negated_opt, opt, line))
        print("'({}){}{}' \\".format(opt, negated_opt, line))