platform for raspberry pi

lib/python3.4/site-packages/pip/backwardcompat/__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