code: def _parse_ver(ver):
      '''
      >>> _parse_ver("'3.4'  # pyzmq 17.1.0 stopped building wheels for python3.4")
      '3.4'
      >>> _parse_ver('"3.4"')
      '3.4'
      >>> _parse_ver('"2.6.17"')
      '2.6.17'
      '''
      if '#' in ver:
          ver, _ = ver.split('#', 1)
          ver = ver.strip()
      return ver.strip('\'').strip('"'f _parse_ver(ver):
      '''
      >>> _parse_ver("'3.4'  # pyzmq 17.1.0 stopped building wheels for python3.4")
      '3.4'
      >>> _parse_ver('"3.4"')
      '3.4'
      >>> _parse_ver('"2.6.17"')
      '2.6.17'
      '''
      if '#' in ver:
          ver, _ = ver.split('#', 1)
          ver = ver.strip()
      return ver.strip('\'').strip('"')
docs: >>> _parse_ver("'3.4'  # pyzmq 17.1.0 stopped building wheels for python3.4")
      '3.4'
      >>> _parse_ver('"3.4"')
      '3.4'
      >>> _parse_ver('"2.6.17"')
      '2.6.17'