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[1.4.x] Fixed #21823 -- Upgraded six to 1.5.2

Backport of 780ae7e from master.
  • Loading branch information...
commit 257f8528b722ea943b2f2113fc2135743e2d80dc 1 parent 8505752
@timgraham timgraham authored
Showing with 90 additions and 29 deletions.
  1. +90 −29 django/utils/six.py
View
119 django/utils/six.py
@@ -1,6 +1,6 @@
"""Utilities for writing code that runs on Python 2 and 3"""
-# Copyright (c) 2010-2013 Benjamin Peterson
+# Copyright (c) 2010-2014 Benjamin Peterson
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
@@ -25,7 +25,7 @@
import types
__author__ = "Benjamin Peterson <benjamin@python.org>"
-__version__ = "1.4.1"
+__version__ = "1.5.2"
# Useful for very coarse version differentiation.
@@ -84,9 +84,9 @@ def __init__(self, name):
def __get__(self, obj, tp):
result = self._resolve()
- setattr(obj, self.name, result)
+ setattr(obj, self.name, result) # Invokes __set__.
# This is a bit ugly, but it avoids running this again.
- delattr(tp, self.name)
+ delattr(obj.__class__, self.name)
return result
@@ -104,6 +104,35 @@ def __init__(self, name, old, new=None):
def _resolve(self):
return _import_module(self.mod)
+ def __getattr__(self, attr):
+ # Hack around the Django autoreloader. The reloader tries to get
+ # __file__ or __name__ of every module in sys.modules. This doesn't work
+ # well if this MovedModule is for an module that is unavailable on this
+ # machine (like winreg on Unix systems). Thus, we pretend __file__ and
+ # __name__ don't exist if the module hasn't been loaded yet. See issues
+ # #51 and #53.
+ if attr in ("__file__", "__name__") and self.mod not in sys.modules:
+ raise AttributeError
+ _module = self._resolve()
+ value = getattr(_module, attr)
+ setattr(self, attr, value)
+ return value
+
+
+class _LazyModule(types.ModuleType):
+
+ def __init__(self, name):
+ super(_LazyModule, self).__init__(name)
+ self.__doc__ = self.__class__.__doc__
+
+ def __dir__(self):
+ attrs = ["__doc__", "__name__"]
+ attrs += [attr.name for attr in self._moved_attributes]
+ return attrs
+
+ # Subclasses should override this
+ _moved_attributes = []
+
class MovedAttribute(_LazyDescr):
@@ -130,7 +159,8 @@ def _resolve(self):
return getattr(module, self.attr)
-class _MovedItems(types.ModuleType):
+
+class _MovedItems(_LazyModule):
"""Lazy loading of moved objects"""
@@ -152,6 +182,7 @@ class _MovedItems(types.ModuleType):
MovedModule("builtins", "__builtin__"),
MovedModule("configparser", "ConfigParser"),
MovedModule("copyreg", "copy_reg"),
+ MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
MovedModule("http_cookies", "Cookie", "http.cookies"),
MovedModule("html_entities", "htmlentitydefs", "html.entities"),
@@ -167,12 +198,14 @@ class _MovedItems(types.ModuleType):
MovedModule("queue", "Queue"),
MovedModule("reprlib", "repr"),
MovedModule("socketserver", "SocketServer"),
+ MovedModule("_thread", "thread", "_thread"),
MovedModule("tkinter", "Tkinter"),
MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+ MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
MovedModule("tkinter_colorchooser", "tkColorChooser",
@@ -188,16 +221,21 @@ class _MovedItems(types.ModuleType):
MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+ MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
MovedModule("winreg", "_winreg"),
]
for attr in _moved_attributes:
setattr(_MovedItems, attr.name, attr)
+ if isinstance(attr, MovedModule):
+ sys.modules[__name__ + ".moves." + attr.name] = attr
del attr
+_MovedItems._moved_attributes = _moved_attributes
+
moves = sys.modules[__name__ + ".moves"] = _MovedItems(__name__ + ".moves")
-class Module_six_moves_urllib_parse(types.ModuleType):
+class Module_six_moves_urllib_parse(_LazyModule):
"""Lazy loading of moved objects in six.moves.urllib_parse"""
@@ -221,11 +259,12 @@ class Module_six_moves_urllib_parse(types.ModuleType):
setattr(Module_six_moves_urllib_parse, attr.name, attr)
del attr
-sys.modules[__name__ + ".moves.urllib_parse"] = Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse")
-sys.modules[__name__ + ".moves.urllib.parse"] = Module_six_moves_urllib_parse(__name__ + ".moves.urllib.parse")
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+sys.modules[__name__ + ".moves.urllib_parse"] = sys.modules[__name__ + ".moves.urllib.parse"] = Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse")
-class Module_six_moves_urllib_error(types.ModuleType):
+class Module_six_moves_urllib_error(_LazyModule):
"""Lazy loading of moved objects in six.moves.urllib_error"""
@@ -238,11 +277,12 @@ class Module_six_moves_urllib_error(types.ModuleType):
setattr(Module_six_moves_urllib_error, attr.name, attr)
del attr
-sys.modules[__name__ + ".moves.urllib_error"] = Module_six_moves_urllib_error(__name__ + ".moves.urllib_error")
-sys.modules[__name__ + ".moves.urllib.error"] = Module_six_moves_urllib_error(__name__ + ".moves.urllib.error")
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+sys.modules[__name__ + ".moves.urllib_error"] = sys.modules[__name__ + ".moves.urllib.error"] = Module_six_moves_urllib_error(__name__ + ".moves.urllib.error")
-class Module_six_moves_urllib_request(types.ModuleType):
+
+class Module_six_moves_urllib_request(_LazyModule):
"""Lazy loading of moved objects in six.moves.urllib_request"""
@@ -279,16 +319,18 @@ class Module_six_moves_urllib_request(types.ModuleType):
MovedAttribute("urlcleanup", "urllib", "urllib.request"),
MovedAttribute("URLopener", "urllib", "urllib.request"),
MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+ MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
]
for attr in _urllib_request_moved_attributes:
setattr(Module_six_moves_urllib_request, attr.name, attr)
del attr
-sys.modules[__name__ + ".moves.urllib_request"] = Module_six_moves_urllib_request(__name__ + ".moves.urllib_request")
-sys.modules[__name__ + ".moves.urllib.request"] = Module_six_moves_urllib_request(__name__ + ".moves.urllib.request")
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+sys.modules[__name__ + ".moves.urllib_request"] = sys.modules[__name__ + ".moves.urllib.request"] = Module_six_moves_urllib_request(__name__ + ".moves.urllib.request")
-class Module_six_moves_urllib_response(types.ModuleType):
+class Module_six_moves_urllib_response(_LazyModule):
"""Lazy loading of moved objects in six.moves.urllib_response"""
@@ -302,11 +344,12 @@ class Module_six_moves_urllib_response(types.ModuleType):
setattr(Module_six_moves_urllib_response, attr.name, attr)
del attr
-sys.modules[__name__ + ".moves.urllib_response"] = Module_six_moves_urllib_response(__name__ + ".moves.urllib_response")
-sys.modules[__name__ + ".moves.urllib.response"] = Module_six_moves_urllib_response(__name__ + ".moves.urllib.response")
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+sys.modules[__name__ + ".moves.urllib_response"] = sys.modules[__name__ + ".moves.urllib.response"] = Module_six_moves_urllib_response(__name__ + ".moves.urllib.response")
-class Module_six_moves_urllib_robotparser(types.ModuleType):
+class Module_six_moves_urllib_robotparser(_LazyModule):
"""Lazy loading of moved objects in six.moves.urllib_robotparser"""
@@ -317,8 +360,9 @@ class Module_six_moves_urllib_robotparser(types.ModuleType):
setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
del attr
-sys.modules[__name__ + ".moves.urllib_robotparser"] = Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib_robotparser")
-sys.modules[__name__ + ".moves.urllib.robotparser"] = Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser")
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+sys.modules[__name__ + ".moves.urllib_robotparser"] = sys.modules[__name__ + ".moves.urllib.robotparser"] = Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser")
class Module_six_moves_urllib(types.ModuleType):
@@ -329,6 +373,9 @@ class Module_six_moves_urllib(types.ModuleType):
response = sys.modules[__name__ + ".moves.urllib_response"]
robotparser = sys.modules[__name__ + ".moves.urllib_robotparser"]
+ def __dir__(self):
+ return ['parse', 'error', 'request', 'response', 'robotparser']
+
sys.modules[__name__ + ".moves.urllib"] = Module_six_moves_urllib(__name__ + ".moves.urllib")
@@ -462,8 +509,9 @@ def int2byte(i):
else:
def b(s):
return s
+ # Workaround for standalone backslash
def u(s):
- return unicode(s, "unicode_escape")
+ return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
unichr = unichr
int2byte = chr
def byte2int(bs):
@@ -479,17 +527,14 @@ def iterbytes(buf):
if PY3:
- import builtins
- exec_ = getattr(builtins, "exec")
+ exec_ = getattr(moves.builtins, "exec")
+
def reraise(tp, value, tb=None):
if value.__traceback__ is not tb:
raise value.with_traceback(tb)
raise value
- print_ = getattr(builtins, "print")
- del builtins
-
else:
def exec_(_code_, _globs_=None, _locs_=None):
"""Execute code in a namespace."""
@@ -503,18 +548,30 @@ def exec_(_code_, _globs_=None, _locs_=None):
_locs_ = _globs_
exec("""exec _code_ in _globs_, _locs_""")
+
exec_("""def reraise(tp, value, tb=None):
raise tp, value, tb
""")
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
def print_(*args, **kwargs):
- """The new-style print function."""
+ """The new-style print function for Python 2.4 and 2.5."""
fp = kwargs.pop("file", sys.stdout)
if fp is None:
return
def write(data):
if not isinstance(data, basestring):
data = str(data)
+ # If the file has an encoding, encode unicode with it.
+ if (isinstance(fp, file) and
+ isinstance(data, unicode) and
+ fp.encoding is not None):
+ errors = getattr(fp, "errors", None)
+ if errors is None:
+ errors = "strict"
+ data = data.encode(fp.encoding, errors)
fp.write(data)
want_unicode = False
sep = kwargs.pop("sep", None)
@@ -565,8 +622,12 @@ def wrapper(cls):
orig_vars = cls.__dict__.copy()
orig_vars.pop('__dict__', None)
orig_vars.pop('__weakref__', None)
- for slots_var in orig_vars.get('__slots__', ()):
- orig_vars.pop(slots_var)
+ slots = orig_vars.get('__slots__')
+ if slots is not None:
+ if isinstance(slots, str):
+ slots = [slots]
+ for slots_var in slots:
+ orig_vars.pop(slots_var)
return metaclass(cls.__name__, cls.__bases__, orig_vars)
return wrapper

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