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"""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