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