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# -*- coding: utf-8 -*-

#

# Copyright (C) 2009-2018 the sqlparse authors and contributors

# <see AUTHORS file>

#

# This module is part of python-sqlparse and is released under

# the BSD License: https://opensource.org/licenses/BSD-3-Clause

"""Python 2/3 compatibility.

This module only exists to avoid a dependency on six

for very trivial stuff. We only need to take care of

string types, buffers and metaclasses.

Parts of the code is copied directly from six:

https://bitbucket.org/gutworth/six

"""

import sys

from io import TextIOBase

PY2 = sys.version_info[0] == 2

PY3 = sys.version_info[0] == 3

if PY3:

def unicode_compatible(cls):

return cls

text_type = str

string_types = (str,)

from io import StringIO

file_types = (StringIO, TextIOBase)

elif PY2:

def unicode_compatible(cls):

cls.__unicode__ = cls.__str__

cls.__str__ = lambda x: x.__unicode__().encode('utf-8')

return cls

text_type = unicode

string_types = (str, unicode,)

from StringIO import StringIO

file_types = (file, StringIO, TextIOBase)