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'''
Compatibility module for Python 2.7 and > 3.3
=============================================
'''
__all__ = ('PY2', 'string_types', 'queue', 'iterkeys',
'itervalues', 'iteritems')
import sys
try:
import queue
except ImportError:
import Queue as queue
#: True if Python 2 intepreter is used
PY2 = sys.version_info[0] == 2
#: String types that can be used for checking if a object is a string
string_types = None
text_type = None
if PY2:
string_types = basestring
text_type = unicode
else:
string_types = text_type = str
if PY2:
iterkeys = lambda d: d.iterkeys()
itervalues = lambda d: d.itervalues()
iteritems = lambda d: d.iteritems()
else:
iterkeys = lambda d: iter(d.keys())
itervalues = lambda d: iter(d.values())
iteritems = lambda d: iter(d.items())
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