From a1dcd82b28c9c9ddb9fb790e7be7120ba339cd2e Mon Sep 17 00:00:00 2001 From: Tim Graham Date: Tue, 4 Nov 2014 20:38:38 -0500 Subject: [PATCH] [1.4.x] Updated six to 1.8.0. Backport of 81477c91f6 from master --- django/utils/six.py | 240 +++++++++++++++++++++++++++++---------- docs/releases/1.4.17.txt | 10 ++ docs/releases/index.txt | 1 + 3 files changed, 189 insertions(+), 62 deletions(-) create mode 100644 docs/releases/1.4.17.txt diff --git a/django/utils/six.py b/django/utils/six.py index 26370d7741ed2..ccc180c954b84 100644 --- a/django/utils/six.py +++ b/django/utils/six.py @@ -20,12 +20,15 @@ # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. +from __future__ import absolute_import + +import functools import operator import sys import types __author__ = "Benjamin Peterson " -__version__ = "1.6.1" +__version__ = "1.8.0" # Useful for very coarse version differentiation. @@ -83,11 +86,7 @@ def __init__(self, name): self.name = name def __get__(self, obj, tp): - try: - result = self._resolve() - except ImportError: - # See the nice big comment in MovedModule.__getattr__. - raise AttributeError("%s could not be imported " % self.name) + result = self._resolve() setattr(obj, self.name, result) # Invokes __set__. # This is a bit ugly, but it avoids running this again. delattr(obj.__class__, self.name) @@ -109,22 +108,7 @@ def _resolve(self): return _import_module(self.mod) def __getattr__(self, attr): - # It turns out many Python frameworks like to traverse sys.modules and - # try to load various attributes. This causes problems if this is a - # platform-specific module on the wrong platform, like _winreg on - # Unixes. Therefore, we silently pretend unimportable modules do not - # have any attributes. See issues #51, #53, #56, and #63 for the full - # tales of woe. - # - # First, if possible, avoid loading the module just to look at __file__, - # __name__, or __path__. - if (attr in ("__file__", "__name__", "__path__") and - self.mod not in sys.modules): - raise AttributeError(attr) - try: - _module = self._resolve() - except ImportError: - raise AttributeError(attr) + _module = self._resolve() value = getattr(_module, attr) setattr(self, attr, value) return value @@ -170,9 +154,72 @@ def _resolve(self): return getattr(module, self.attr) +class _SixMetaPathImporter(object): + """ + A meta path importer to import six.moves and its submodules. + + This class implements a PEP302 finder and loader. It should be compatible + with Python 2.5 and all existing versions of Python3 + """ + def __init__(self, six_module_name): + self.name = six_module_name + self.known_modules = {} + + def _add_module(self, mod, *fullnames): + for fullname in fullnames: + self.known_modules[self.name + "." + fullname] = mod + + def _get_module(self, fullname): + return self.known_modules[self.name + "." + fullname] + + def find_module(self, fullname, path=None): + if fullname in self.known_modules: + return self + return None + + def __get_module(self, fullname): + try: + return self.known_modules[fullname] + except KeyError: + raise ImportError("This loader does not know module " + fullname) + + def load_module(self, fullname): + try: + # in case of a reload + return sys.modules[fullname] + except KeyError: + pass + mod = self.__get_module(fullname) + if isinstance(mod, MovedModule): + mod = mod._resolve() + else: + mod.__loader__ = self + sys.modules[fullname] = mod + return mod + + def is_package(self, fullname): + """ + Return true, if the named module is a package. + + We need this method to get correct spec objects with + Python 3.4 (see PEP451) + """ + return hasattr(self.__get_module(fullname), "__path__") + + def get_code(self, fullname): + """Return None + + Required, if is_package is implemented""" + self.__get_module(fullname) # eventually raises ImportError + return None + get_source = get_code # same as get_code + +_importer = _SixMetaPathImporter(__name__) + class _MovedItems(_LazyModule): """Lazy loading of moved objects""" + __path__ = [] # mark as package _moved_attributes = [ @@ -180,11 +227,15 @@ class _MovedItems(_LazyModule): MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"), MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"), MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"), + MovedAttribute("intern", "__builtin__", "sys"), MovedAttribute("map", "itertools", "builtins", "imap", "map"), MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"), MovedAttribute("reload_module", "__builtin__", "imp", "reload"), MovedAttribute("reduce", "__builtin__", "functools"), + MovedAttribute("shlex_quote", "pipes", "shlex", "quote"), MovedAttribute("StringIO", "StringIO", "io"), + MovedAttribute("UserDict", "UserDict", "collections"), + MovedAttribute("UserList", "UserList", "collections"), MovedAttribute("UserString", "UserString", "collections"), MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"), MovedAttribute("zip", "itertools", "builtins", "izip", "zip"), @@ -194,12 +245,14 @@ class _MovedItems(_LazyModule): MovedModule("configparser", "ConfigParser"), MovedModule("copyreg", "copy_reg"), MovedModule("dbm_gnu", "gdbm", "dbm.gnu"), + MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"), MovedModule("http_cookiejar", "cookielib", "http.cookiejar"), MovedModule("http_cookies", "Cookie", "http.cookies"), MovedModule("html_entities", "htmlentitydefs", "html.entities"), MovedModule("html_parser", "HTMLParser", "html.parser"), MovedModule("http_client", "httplib", "http.client"), MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"), + MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"), MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"), MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"), MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"), @@ -233,18 +286,19 @@ class _MovedItems(_LazyModule): MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"), MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"), MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"), - MovedModule("xmlrpc_server", "xmlrpclib", "xmlrpc.server"), + MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"), MovedModule("winreg", "_winreg"), ] for attr in _moved_attributes: setattr(_MovedItems, attr.name, attr) if isinstance(attr, MovedModule): - sys.modules[__name__ + ".moves." + attr.name] = attr + _importer._add_module(attr, "moves." + attr.name) del attr _MovedItems._moved_attributes = _moved_attributes -moves = sys.modules[__name__ + ".moves"] = _MovedItems(__name__ + ".moves") +moves = _MovedItems(__name__ + ".moves") +_importer._add_module(moves, "moves") class Module_six_moves_urllib_parse(_LazyModule): @@ -268,6 +322,13 @@ class Module_six_moves_urllib_parse(_LazyModule): MovedAttribute("unquote_plus", "urllib", "urllib.parse"), MovedAttribute("urlencode", "urllib", "urllib.parse"), MovedAttribute("splitquery", "urllib", "urllib.parse"), + MovedAttribute("splittag", "urllib", "urllib.parse"), + MovedAttribute("splituser", "urllib", "urllib.parse"), + MovedAttribute("uses_fragment", "urlparse", "urllib.parse"), + MovedAttribute("uses_netloc", "urlparse", "urllib.parse"), + MovedAttribute("uses_params", "urlparse", "urllib.parse"), + MovedAttribute("uses_query", "urlparse", "urllib.parse"), + MovedAttribute("uses_relative", "urlparse", "urllib.parse"), ] for attr in _urllib_parse_moved_attributes: setattr(Module_six_moves_urllib_parse, attr.name, attr) @@ -275,7 +336,8 @@ class Module_six_moves_urllib_parse(_LazyModule): 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") +_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"), + "moves.urllib_parse", "moves.urllib.parse") class Module_six_moves_urllib_error(_LazyModule): @@ -293,7 +355,8 @@ class Module_six_moves_urllib_error(_LazyModule): 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") +_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"), + "moves.urllib_error", "moves.urllib.error") class Module_six_moves_urllib_request(_LazyModule): @@ -341,7 +404,8 @@ class Module_six_moves_urllib_request(_LazyModule): 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") +_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"), + "moves.urllib_request", "moves.urllib.request") class Module_six_moves_urllib_response(_LazyModule): @@ -360,7 +424,8 @@ class Module_six_moves_urllib_response(_LazyModule): 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") +_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"), + "moves.urllib_response", "moves.urllib.response") class Module_six_moves_urllib_robotparser(_LazyModule): @@ -376,22 +441,24 @@ class Module_six_moves_urllib_robotparser(_LazyModule): 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") +_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"), + "moves.urllib_robotparser", "moves.urllib.robotparser") class Module_six_moves_urllib(types.ModuleType): """Create a six.moves.urllib namespace that resembles the Python 3 namespace""" - parse = sys.modules[__name__ + ".moves.urllib_parse"] - error = sys.modules[__name__ + ".moves.urllib_error"] - request = sys.modules[__name__ + ".moves.urllib_request"] - response = sys.modules[__name__ + ".moves.urllib_response"] - robotparser = sys.modules[__name__ + ".moves.urllib_robotparser"] + __path__ = [] # mark as package + parse = _importer._get_module("moves.urllib_parse") + error = _importer._get_module("moves.urllib_error") + request = _importer._get_module("moves.urllib_request") + response = _importer._get_module("moves.urllib_response") + robotparser = _importer._get_module("moves.urllib_robotparser") def __dir__(self): return ['parse', 'error', 'request', 'response', 'robotparser'] - -sys.modules[__name__ + ".moves.urllib"] = Module_six_moves_urllib(__name__ + ".moves.urllib") +_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"), + "moves.urllib") def add_move(move): @@ -418,11 +485,6 @@ def remove_move(name): _func_code = "__code__" _func_defaults = "__defaults__" _func_globals = "__globals__" - - _iterkeys = "keys" - _itervalues = "values" - _iteritems = "items" - _iterlists = "lists" else: _meth_func = "im_func" _meth_self = "im_self" @@ -432,11 +494,6 @@ def remove_move(name): _func_defaults = "func_defaults" _func_globals = "func_globals" - _iterkeys = "iterkeys" - _itervalues = "itervalues" - _iteritems = "iteritems" - _iterlists = "iterlists" - try: advance_iterator = next @@ -485,21 +542,37 @@ def next(self): get_function_globals = operator.attrgetter(_func_globals) -def iterkeys(d, **kw): - """Return an iterator over the keys of a dictionary.""" - return iter(getattr(d, _iterkeys)(**kw)) +if PY3: + def iterkeys(d, **kw): + return iter(d.keys(**kw)) + + def itervalues(d, **kw): + return iter(d.values(**kw)) + + def iteritems(d, **kw): + return iter(d.items(**kw)) + + def iterlists(d, **kw): + return iter(d.lists(**kw)) +else: + def iterkeys(d, **kw): + return iter(d.iterkeys(**kw)) + + def itervalues(d, **kw): + return iter(d.itervalues(**kw)) -def itervalues(d, **kw): - """Return an iterator over the values of a dictionary.""" - return iter(getattr(d, _itervalues)(**kw)) + def iteritems(d, **kw): + return iter(d.iteritems(**kw)) -def iteritems(d, **kw): - """Return an iterator over the (key, value) pairs of a dictionary.""" - return iter(getattr(d, _iteritems)(**kw)) + def iterlists(d, **kw): + return iter(d.iterlists(**kw)) -def iterlists(d, **kw): - """Return an iterator over the (key, [values]) pairs of a dictionary.""" - return iter(getattr(d, _iterlists)(**kw)) +_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.") +_add_doc(itervalues, "Return an iterator over the values of a dictionary.") +_add_doc(iteritems, + "Return an iterator over the (key, value) pairs of a dictionary.") +_add_doc(iterlists, + "Return an iterator over the (key, [values]) pairs of a dictionary.") if PY3: @@ -545,6 +618,8 @@ def iterbytes(buf): def reraise(tp, value, tb=None): + if value is None: + value = tp() if value.__traceback__ is not tb: raise value.with_traceback(tb) raise value @@ -625,26 +700,67 @@ def write(data): _add_doc(reraise, """Reraise an exception.""") +if sys.version_info[0:2] < (3, 4): + def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS, + updated=functools.WRAPPER_UPDATES): + def wrapper(f): + f = functools.wraps(wrapped)(f) + f.__wrapped__ = wrapped + return f + return wrapper +else: + wraps = functools.wraps def with_metaclass(meta, *bases): """Create a base class with a metaclass.""" - return meta("NewBase", bases, {}) + # This requires a bit of explanation: the basic idea is to make a dummy + # metaclass for one level of class instantiation that replaces itself with + # the actual metaclass. + class metaclass(meta): + def __new__(cls, name, this_bases, d): + return meta(name, bases, d) + return type.__new__(metaclass, 'temporary_class', (), {}) + def add_metaclass(metaclass): """Class decorator for creating a class with a metaclass.""" def wrapper(cls): orig_vars = cls.__dict__.copy() - orig_vars.pop('__dict__', None) - orig_vars.pop('__weakref__', None) 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) + orig_vars.pop('__dict__', None) + orig_vars.pop('__weakref__', None) return metaclass(cls.__name__, cls.__bases__, orig_vars) return wrapper +# Complete the moves implementation. +# This code is at the end of this module to speed up module loading. +# Turn this module into a package. +__path__ = [] # required for PEP 302 and PEP 451 +__package__ = __name__ # see PEP 366 @ReservedAssignment +if globals().get("__spec__") is not None: + __spec__.submodule_search_locations = [] # PEP 451 @UndefinedVariable +# Remove other six meta path importers, since they cause problems. This can +# happen if six is removed from sys.modules and then reloaded. (Setuptools does +# this for some reason.) +if sys.meta_path: + for i, importer in enumerate(sys.meta_path): + # Here's some real nastiness: Another "instance" of the six module might + # be floating around. Therefore, we can't use isinstance() to check for + # the six meta path importer, since the other six instance will have + # inserted an importer with different class. + if (type(importer).__name__ == "_SixMetaPathImporter" and + importer.name == __name__): + del sys.meta_path[i] + break + del i, importer +# Finally, add the importer to the meta path import hook. +sys.meta_path.append(_importer) + ### Additional customizations for Django ### diff --git a/docs/releases/1.4.17.txt b/docs/releases/1.4.17.txt new file mode 100644 index 0000000000000..f8785bcea2581 --- /dev/null +++ b/docs/releases/1.4.17.txt @@ -0,0 +1,10 @@ +=========================== +Django 1.4.17 release notes +=========================== + +*Under development* + +Django 1.4.17 ... + +Additionally, Django's vendored version of six, :mod:`django.utils.six`, has +been upgraded to the latest release (1.8.0). diff --git a/docs/releases/index.txt b/docs/releases/index.txt index bf7c0eceb45c8..7c598a5388a7a 100644 --- a/docs/releases/index.txt +++ b/docs/releases/index.txt @@ -19,6 +19,7 @@ Final releases .. toctree:: :maxdepth: 1 + 1.4.17 1.4.16 1.4.15 1.4.14