/usr/lib/python3/dist-packages/pex/compatibility.py is in python3-pex 1.1.14-2ubuntu2.
This file is owned by root:root, with mode 0o644.
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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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 | # Copyright 2014 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).
# This file contains several 2.x/3.x compatibility checkstyle violations for a reason
# checkstyle: noqa
import os
from abc import ABCMeta
from numbers import Integral, Real
from sys import version_info as sys_version_info
# TODO(wickman) Since the io package is available in 2.6.x, use that instead of
# cStringIO/StringIO
try:
# CPython 2.x
from cStringIO import StringIO
except ImportError:
try:
# Python 2.x
from StringIO import StringIO
except:
# Python 3.x
from io import StringIO
from io import BytesIO
try:
# Python 2.x
from ConfigParser import ConfigParser
except ImportError:
# Python 3.x
from configparser import ConfigParser
AbstractClass = ABCMeta('AbstractClass', (object,), {})
PY2 = sys_version_info[0] == 2
PY3 = sys_version_info[0] == 3
StringIO = StringIO
BytesIO = BytesIO if PY3 else StringIO
integer = (Integral,)
real = (Real,)
numeric = integer + real
string = (str,) if PY3 else (str, unicode)
bytes = (bytes,)
if PY2:
def to_bytes(st, encoding='utf-8'):
if isinstance(st, unicode):
return st.encode(encoding)
elif isinstance(st, bytes):
return st
else:
raise ValueError('Cannot convert %s to bytes' % type(st))
else:
def to_bytes(st, encoding='utf-8'):
if isinstance(st, str):
return st.encode(encoding)
elif isinstance(st, bytes):
return st
else:
raise ValueError('Cannot convert %s to bytes.' % type(st))
_PY3_EXEC_FUNCTION = """
def exec_function(ast, globals_map):
locals_map = globals_map
exec ast in globals_map, locals_map
return locals_map
"""
if PY3:
def exec_function(ast, globals_map):
locals_map = globals_map
exec(ast, globals_map, locals_map)
return locals_map
else:
eval(compile(_PY3_EXEC_FUNCTION, "<exec_function>", "exec"))
if PY3:
from contextlib import contextmanager, ExitStack
@contextmanager
def nested(*context_managers):
enters = []
with ExitStack() as stack:
for manager in context_managers:
enters.append(stack.enter_context(manager))
yield tuple(enters)
else:
from contextlib import nested
if PY3:
from urllib.request import pathname2url, url2pathname
else:
from urllib import pathname2url, url2pathname
WINDOWS = os.name == 'nt'
__all__ = (
'AbstractClass',
'BytesIO',
'ConfigParser',
'PY2',
'PY3',
'StringIO',
'WINDOWS',
'bytes',
'exec_function',
'nested',
'pathname2url',
'string',
'to_bytes',
'url2pathname',
)
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