import io import sys import re README_FILE = 'README.md' helptext = sys.stdin.read() if isinstance(helptext, bytes): helptext = helptext.decode('utf-8') with io.open(README_FILE, encoding='utf-8') as f: oldreadme = f.read() header = oldreadme[:oldreadme.index('# OPTIONS')] footer = oldreadme[oldreadme.index('# CONFIGURATION'):] options = helptext[helptext.index(' General Options:') + 19:] options = re.sub(r'^ (\w.+)$', r'## \1', options, flags=re.M) options = '# OPTIONS\n' + options + '\n' with io.open(README_FILE, 'w', encoding='utf-8') as f: f.write(header) f.write(options) f.write(footer)