/usr/lib/python2.7/dist-packages/zmq/utils/strtypes.py is in python-zmq 14.0.1-1build2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | """Declare basic string types unambiguously for various Python versions.
Authors
-------
* MinRK
"""
#-----------------------------------------------------------------------------
# Copyright (c) 2010-2012 Brian Granger, Min Ragan-Kelley
#
# This file is part of pyzmq
#
# Distributed under the terms of the New BSD License. The full license is in
# the file COPYING.BSD, distributed as part of this software.
#-----------------------------------------------------------------------------
import sys
if sys.version_info[0] >= 3:
bytes = bytes
unicode = str
basestring = (bytes, unicode)
else:
unicode = unicode
bytes = str
basestring = basestring
def cast_bytes(s, encoding='utf8'):
"""cast unicode or bytes to bytes"""
if isinstance(s, bytes):
return s
elif isinstance(s, unicode):
return s.encode(encoding)
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def cast_unicode(s, encoding='utf8'):
"""cast bytes or unicode to unicode"""
if isinstance(s, bytes):
return s.decode(encoding)
elif isinstance(s, unicode):
return s
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
# give short 'b' alias for cast_bytes, so that we can use fake b('stuff')
# to simulate b'stuff'
b = asbytes = cast_bytes
u = cast_unicode
__all__ = ['asbytes', 'bytes', 'unicode', 'basestring', 'b', 'u', 'cast_bytes', 'cast_unicode']
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