/usr/lib/python3/dist-packages/bson/py3compat.py is in python3-bson 3.2-1build1.
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#
# Licensed under the Apache License, Version 2.0 (the "License"); you
# may not use this file except in compliance with the License. You
# may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied. See the License for the specific language governing
# permissions and limitations under the License.
"""Utility functions and definitions for python3 compatibility."""
import sys
PY3 = sys.version_info[0] == 3
if PY3:
import codecs
import _thread as thread
from io import BytesIO as StringIO
MAXSIZE = sys.maxsize
imap = map
def b(s):
# BSON and socket operations deal in binary data. In
# python 3 that means instances of `bytes`. In python
# 2.6 and 2.7 you can create an alias for `bytes` using
# the b prefix (e.g. b'foo').
# See http://python3porting.com/problems.html#nicer-solutions
return codecs.latin_1_encode(s)[0]
def u(s):
# PY3 strings may already be treated as unicode literals
return s
def bytes_from_hex(h):
return bytes.fromhex(h)
def iteritems(d):
return iter(d.items())
def itervalues(d):
return iter(d.values())
def reraise(exctype, value, trace=None):
raise exctype(str(value)).with_traceback(trace)
def _unicode(s):
return s
text_type = str
string_type = str
integer_types = int
else:
import thread
from itertools import imap
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
MAXSIZE = sys.maxint
def b(s):
# See comments above. In python 2.x b('foo') is just 'foo'.
return s
def u(s):
"""Replacement for unicode literal prefix."""
return unicode(s.replace('\\', '\\\\'), 'unicode_escape')
def bytes_from_hex(h):
return h.decode('hex')
def iteritems(d):
return d.iteritems()
def itervalues(d):
return d.itervalues()
# "raise x, y, z" raises SyntaxError in Python 3
exec("""def reraise(exctype, value, trace=None):
raise exctype, str(value), trace
""")
_unicode = unicode
string_type = basestring
text_type = unicode
integer_types = (int, long)
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