Fix displaying non-ASCII filenames in exceptions in Python 2

        return [self._replace_legacy_option(arg) for arg in args]

    def _replace_legacy_option(self, arg):

        # sys.argv contains byte strings in Python 2 and unicode strings in Python 3

        try:

            # legacy options are ASCII

            # all legacy options are ASCII-only

            unicode_arg = arg if isinstance(arg, six.text_type) else arg.decode('ASCII')

        except UnicodeDecodeError:

            return arg

from __future__ import absolute_import, unicode_literals

import sys

import six

    def get_filename(self):

        """Return filename, if relevant."""

        if isinstance(self.filename, six.text_type):

            return self.filename

        else:

            from .io import _decode_filename

            return _decode_filename(self.filename, errors='replace')

    def __eq__(self, other):

        return six.text_type(self) == six.text_type(other)

    return stream_encoding or get_default_encoding()

def _decode_filename(filename, errors='strict'):

    """Decode byte-encoded filename."""

    encoding = sys.getfilesystemencoding() or self.get_default_encoding()

    return filename.decode(encoding, errors=errors)

def _open_existing(opener, filename, mode, locate, **kwargs):

    if not path.isfile(filename):

        found = locate(filename)