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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)
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