fix_encoding.py 文件源码

def fix_win_sys_argv(encoding):
  """Converts sys.argv to 'encoding' encoded string.

  utf-8 is recommended.

  Works around <http://bugs.python.org/issue2128>.
  """
  global _SYS_ARGV_PROCESSED
  if _SYS_ARGV_PROCESSED:
    return False

  # These types are available on linux but not Mac.
  # pylint: disable=no-name-in-module,F0401
  from ctypes import byref, c_int, POINTER, windll, WINFUNCTYPE
  from ctypes.wintypes import LPCWSTR, LPWSTR

  # <http://msdn.microsoft.com/en-us/library/ms683156.aspx>
  GetCommandLineW = WINFUNCTYPE(LPWSTR)(('GetCommandLineW', windll.kernel32))
  # <http://msdn.microsoft.com/en-us/library/bb776391.aspx>
  CommandLineToArgvW = WINFUNCTYPE(POINTER(LPWSTR), LPCWSTR, POINTER(c_int))(
      ('CommandLineToArgvW', windll.shell32))

  argc = c_int(0)
  argv_unicode = CommandLineToArgvW(GetCommandLineW(), byref(argc))
  argv = [
      argv_unicode[i].encode(encoding, 'replace')
      for i in xrange(0, argc.value)]

  if not hasattr(sys, 'frozen'):
    # If this is an executable produced by py2exe or bbfreeze, then it
    # will have been invoked directly. Otherwise, unicode_argv[0] is the
    # Python interpreter, so skip that.
    argv = argv[1:]

    # Also skip option arguments to the Python interpreter.
    while len(argv) > 0:
      arg = argv[0]
      if not arg.startswith(u'-') or arg == u'-':
        break
      argv = argv[1:]
      if arg == u'-m':
        # sys.argv[0] should really be the absolute path of the
        # module source, but never mind.
        break
      if arg == u'-c':
        argv[0] = u'-c'
        break
  sys.argv = argv
  _SYS_ARGV_PROCESSED = True
  return True