+++ /dev/null
-"""Stuff that differs in different Python versions and platform
-distributions."""
-from __future__ import absolute_import, division
-
-import os
-import sys
-
-from pip._vendor.six import text_type
-
-try:
- from logging.config import dictConfig as logging_dictConfig
-except ImportError:
- from pip.compat.dictconfig import dictConfig as logging_dictConfig
-
-try:
- from collections import OrderedDict
-except ImportError:
- from pip._vendor.ordereddict import OrderedDict
-
-try:
- import ipaddress
-except ImportError:
- try:
- from pip._vendor import ipaddress
- except ImportError:
- import ipaddr as ipaddress
- ipaddress.ip_address = ipaddress.IPAddress
- ipaddress.ip_network = ipaddress.IPNetwork
-
-
-try:
- import sysconfig
-
- def get_stdlib():
- paths = [
- sysconfig.get_path("stdlib"),
- sysconfig.get_path("platstdlib"),
- ]
- return set(filter(bool, paths))
-except ImportError:
- from distutils import sysconfig
-
- def get_stdlib():
- paths = [
- sysconfig.get_python_lib(standard_lib=True),
- sysconfig.get_python_lib(standard_lib=True, plat_specific=True),
- ]
- return set(filter(bool, paths))
-
-
-__all__ = [
- "logging_dictConfig", "ipaddress", "uses_pycache", "console_to_str",
- "native_str", "get_path_uid", "stdlib_pkgs", "WINDOWS", "samefile",
- "OrderedDict",
-]
-
-
-if sys.version_info >= (3, 4):
- uses_pycache = True
- from importlib.util import cache_from_source
-else:
- import imp
- uses_pycache = hasattr(imp, 'cache_from_source')
- if uses_pycache:
- cache_from_source = imp.cache_from_source
- else:
- cache_from_source = None
-
-
-if sys.version_info >= (3,):
- def console_to_str(s):
- try:
- return s.decode(sys.__stdout__.encoding)
- except UnicodeDecodeError:
- return s.decode('utf_8')
-
- def native_str(s, replace=False):
- if isinstance(s, bytes):
- return s.decode('utf-8', 'replace' if replace else 'strict')
- return s
-
-else:
- def console_to_str(s):
- return s
-
- def native_str(s, replace=False):
- # Replace is ignored -- unicode to UTF-8 can't fail
- if isinstance(s, text_type):
- return s.encode('utf-8')
- return s
-
-
-def total_seconds(td):
- if hasattr(td, "total_seconds"):
- return td.total_seconds()
- else:
- val = td.microseconds + (td.seconds + td.days * 24 * 3600) * 10 ** 6
- return val / 10 ** 6
-
-
-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 compat 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 vulnerability, 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
-
-
-def expanduser(path):
- """
- Expand ~ and ~user constructions.
-
- Includes a workaround for http://bugs.python.org/issue14768
- """
- expanded = os.path.expanduser(path)
- if path.startswith('~/') and expanded.startswith('//'):
- expanded = expanded[1:]
- return expanded
-
-
-# packages in the stdlib that may have installation metadata, but should not be
-# considered 'installed'. this theoretically could be determined based on
-# dist.location (py27:`sysconfig.get_paths()['stdlib']`,
-# py26:sysconfig.get_config_vars('LIBDEST')), but fear platform variation may
-# make this ineffective, so hard-coding
-stdlib_pkgs = ('python', 'wsgiref')
-if sys.version_info >= (2, 7):
- stdlib_pkgs += ('argparse',)
-
-
-# windows detection, covers cpython and ironpython
-WINDOWS = (sys.platform.startswith("win") or
- (sys.platform == 'cli' and os.name == 'nt'))
-
-
-def samefile(file1, file2):
- """Provide an alternative for os.path.samefile on Windows/Python2"""
- if hasattr(os.path, 'samefile'):
- return os.path.samefile(file1, file2)
- else:
- path1 = os.path.normcase(os.path.abspath(file1))
- path2 = os.path.normcase(os.path.abspath(file2))
- return path1 == path2
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