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python34
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backwardcompat
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Filename :
__init__.py
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"""Stuff that differs in different Python versions and platform distributions.""" import os import imp import sys import site __all__ = ['WindowsError'] uses_pycache = hasattr(imp, 'cache_from_source') class NeverUsedException(Exception): """this exception should never be raised""" try: WindowsError = WindowsError except NameError: WindowsError = NeverUsedException try: #new in Python 3.3 PermissionError = PermissionError except NameError: PermissionError = NeverUsedException console_encoding = sys.__stdout__.encoding if sys.version_info >= (3,): from io import StringIO, BytesIO from functools import reduce from urllib.error import URLError, HTTPError from queue import Queue, Empty from urllib.request import url2pathname, urlretrieve, pathname2url from email import message as emailmessage import urllib.parse as urllib import urllib.request as urllib2 import configparser as ConfigParser import xmlrpc.client as xmlrpclib import urllib.parse as urlparse import http.client as httplib def cmp(a, b): return (a > b) - (a < b) def b(s): return s.encode('utf-8') def u(s): return s.decode('utf-8') def console_to_str(s): try: return s.decode(console_encoding) except UnicodeDecodeError: return s.decode('utf_8') def get_http_message_param(http_message, param, default_value): return http_message.get_param(param, default_value) bytes = bytes string_types = (str,) raw_input = input else: from cStringIO import StringIO from urllib2 import URLError, HTTPError from Queue import Queue, Empty from urllib import url2pathname, urlretrieve, pathname2url from email import Message as emailmessage import urllib import urllib2 import urlparse import ConfigParser import xmlrpclib import httplib def b(s): return s def u(s): return s def console_to_str(s): return s def get_http_message_param(http_message, param, default_value): result = http_message.getparam(param) return result or default_value bytes = str string_types = (basestring,) reduce = reduce cmp = cmp raw_input = raw_input BytesIO = StringIO from distutils.sysconfig import get_python_lib, get_python_version #site.USER_SITE was created in py2.6 user_site = getattr(site, 'USER_SITE', None) def product(*args, **kwds): # product('ABCD', 'xy') --> Ax Ay Bx By Cx Cy Dx Dy # product(range(2), repeat=3) --> 000 001 010 011 100 101 110 111 pools = list(map(tuple, args)) * kwds.get('repeat', 1) result = [[]] for pool in pools: result = [x + [y] for x in result for y in pool] for prod in result: yield tuple(prod) def get_path_uid(path): """ Return path's uid. Does not follow symlinks: https://github.com/pypa/pip/pull/935#discussion_r5307003 Placed this function in backwardcompat due to differences on AIX and Jython, that should eventually go away. :raises OSError: When path is a symlink or can't be read. """ if hasattr(os, 'O_NOFOLLOW'): fd = os.open(path, os.O_RDONLY | os.O_NOFOLLOW) file_uid = os.fstat(fd).st_uid os.close(fd) else: # AIX and Jython # WARNING: time of check vulnerabity, but best we can do w/o NOFOLLOW if not os.path.islink(path): # older versions of Jython don't have `os.fstat` file_uid = os.stat(path).st_uid else: # raise OSError for parity with os.O_NOFOLLOW above raise OSError("%s is a symlink; Will not return uid for symlinks" % path) return file_uid