Merge branch 'default'

This commit merges 'default' at the root of branch '3.5'.

.hgtags

@@ -169,3 +169,4 @@ b4cbecbc0781e89a309d03b60a1f75f8499250e6 v3.4.3
 0337bd7ebcb6559d69679bc7025059ad1ce4f432 v3.5.0a2
 82656e28b5e5c4ae48d8dd8b5f0d7968908a82b6 v3.5.0a3
 413e0e0004f4f954331cb8122aa55fe208984955 v3.5.0a4
+071fefbb5e3db770c6c19fba9994699f121b1cea v3.5.0b1

Doc/c-api/module.rst

@@ -7,8 +7,6 @@ Module Objects
 
 .. index:: object: module
 
-There are only a few functions special to module objects.
-
 
 .. c:var:: PyTypeObject PyModule_Type
 
@@ -109,6 +107,14 @@ There are only a few functions special to module objects.
       unencodable filenames, use :c:func:`PyModule_GetFilenameObject` instead.
 
 
+Per-interpreter module state
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Single-phase initialization creates singleton modules that can store additional
+information as part of the interpreter, allow that state to be retrieved later
+with only a reference to the module definition, rather than to the module
+itself.
+
 .. c:function:: void* PyModule_GetState(PyObject *module)
 
    Return the "state" of the module, that is, a pointer to the block of memory
@@ -146,27 +152,6 @@ There are only a few functions special to module objects.
 Initializing C modules
 ^^^^^^^^^^^^^^^^^^^^^^
 
-These functions are usually used in the module initialization function.
-
-.. c:function:: PyObject* PyModule_Create(PyModuleDef *module)
-
-   Create a new module object, given the definition in *module*.  This behaves
-   like :c:func:`PyModule_Create2` with *module_api_version* set to
-   :const:`PYTHON_API_VERSION`.
-
-
-.. c:function:: PyObject* PyModule_Create2(PyModuleDef *module, int module_api_version)
-
-   Create a new module object, given the definition in *module*, assuming the
-   API version *module_api_version*.  If that version does not match the version
-   of the running interpreter, a :exc:`RuntimeWarning` is emitted.
-
-   .. note::
-
-      Most uses of this function should be using :c:func:`PyModule_Create`
-      instead; only use this if you are sure you need it.
-
-
 .. c:type:: PyModuleDef
 
    This struct holds all information that is needed to create a module object.
@@ -210,9 +195,10 @@ These functions are usually used in the module initialization function.
       A pointer to a table of module-level functions, described by
       :c:type:`PyMethodDef` values.  Can be *NULL* if no functions are present.
 
-   .. c:member:: inquiry m_reload
+   .. c:member:: PyModuleDef_Slot* m_slots
 
-      Currently unused, should be *NULL*.
+      An array of slot definitions for multi-phase initialization, terminated by
+      a *NULL* entry.
 
    .. c:member:: traverseproc m_traverse
 
@@ -229,14 +215,68 @@ These functions are usually used in the module initialization function.
       A function to call during deallocation of the module object, or *NULL* if
       not needed.
 
+The module initialization function may create and return the module object
+directly. This is referred to as "single-phase initialization", and uses one
+of the following two module creation functions:
+
+.. c:function:: PyObject* PyModule_Create(PyModuleDef *module)
+
+   Create a new module object, given the definition in *module*.  This behaves
+   like :c:func:`PyModule_Create2` with *module_api_version* set to
+   :const:`PYTHON_API_VERSION`.
+
+
+.. c:function:: PyObject* PyModule_Create2(PyModuleDef *module, int module_api_version)
+
+   Create a new module object, given the definition in *module*, assuming the
+   API version *module_api_version*.  If that version does not match the version
+   of the running interpreter, a :exc:`RuntimeWarning` is emitted.
+
+   .. note::
+
+      Most uses of this function should be using :c:func:`PyModule_Create`
+      instead; only use this if you are sure you need it.
+
+
+Alternatively, the module initialization function may instead return a
+:c:type:`PyModuleDef` instance with a non-empty ``m_slots`` array. This is
+referred to as "multi-phase initialization", and ``PyModuleDef`` instance
+should be initialized with the following function:
+
+.. c:function:: PyObject* PyModuleDef_Init(PyModuleDef *module)
+
+   Ensures a module definition is a properly initialized Python object that
+   correctly reports its type and reference count.
+
+.. XXX (ncoghlan): It's not clear if it makes sense to document PyModule_ExecDef
+   PyModule_FromDefAndSpec or PyModule_FromDefAndSpec2 here, as end user code
+   generally shouldn't be calling those.
+
+The module initialization function (if using single phase initialization) or
+a function called from a module execution slot (if using multiphase
+initialization), can use the following functions to help initialize the module
+state:
+
+.. c:function:: int PyModule_SetDocString(PyObject *module, const char *docstring)
+
+   Set the docstring for *module* to *docstring*. Return ``-1`` on error, ``0``
+   on success.
+
+.. c:function:: int PyModule_AddFunctions(PyObject *module, PyMethodDef *functions)
+
+   Add the functions from the ``NULL`` terminated *functions* array to *module*.
+   Refer to the :c:type:`PyMethodDef` documentation for details on individual
+   entries (due to the lack of a shared module namespace, module level
+   "functions" implemented in C typically receive the module as their first
+   parameter, making them similar to instance methods on Python classes).
+
 
 .. c:function:: int PyModule_AddObject(PyObject *module, const char *name, PyObject *value)
 
    Add an object to *module* as *name*.  This is a convenience function which can
    be used from the module's initialization function.  This steals a reference to
    *value*.  Return ``-1`` on error, ``0`` on success.
 
-
 .. c:function:: int PyModule_AddIntConstant(PyObject *module, const char *name, long value)
 
    Add an integer constant to *module* as *name*.  This convenience function can be

Doc/library/collections.abc.rst

@@ -121,6 +121,20 @@ ABC                        Inherits from          Abstract Methods        Mixin
 
    ABCs for read-only and mutable :term:`sequences <sequence>`.
 
+   Implementation note: Some of the mixin methods, such as
+   :meth:`__iter__`, :meth:`__reversed__` and :meth:`index`, make
+   repeated calls to the underlying :meth:`__getitem__` method.
+   Consequently, if :meth:`__getitem__` is implemented with constant
+   access speed, the mixin methods will have linear performance;
+   however, if the underlying method is linear (as it would be with a
+   linked list), the mixins will have quadratic performance and will
+   likely need to be overridden.
+
+   .. versionchanged:: 3.5
+      The index() method added support for *stop* and *start*
+      arguments.
+
+
 .. class:: Set
            MutableSet
 

Doc/library/collections.rst

@@ -387,7 +387,7 @@ or subtracting from an empty counter.
       Section 4.6.3, Exercise 19*.
 
     * To enumerate all distinct multisets of a given size over a given set of
-      elements, see :func:`itertools.combinations_with_replacement`.
+      elements, see :func:`itertools.combinations_with_replacement`:
 
             map(Counter, combinations_with_replacement('ABC', 2)) --> AA AB AC BB BC CC
 
@@ -464,10 +464,11 @@ or subtracting from an empty counter.
         elements in the iterable argument.
 
 
-    .. method:: index(x[, start[, end]])
+    .. method:: index(x[, start[, stop]])
 
-        Return the position of *x* in the deque.  Returns the first match
-        or raises :exc:`ValueError` if not found.
+        Return the position of *x* in the deque (at or after index *start*
+        and before index *stop*).  Returns the first match or raises
+        :exc:`ValueError` if not found.
 
         .. versionadded:: 3.5
 
@@ -493,7 +494,7 @@ or subtracting from an empty counter.
 
     .. method:: remove(value)
 
-        Removed the first occurrence of *value*.  If not found, raises a
+        Remove the first occurrence of *value*.  If not found, raises a
         :exc:`ValueError`.
 
 

Doc/library/development.rst

@@ -16,6 +16,7 @@ The list of modules described in this chapter is:
 
 .. toctree::
 
+   typing.rst
    pydoc.rst
    doctest.rst
    unittest.rst

Doc/library/functions.rst

@@ -249,7 +249,7 @@ are always available.  They are listed here in alphabetical order.
 
 .. class:: complex([real[, imag]])
 
-   Return a complex number with the value *real* + *imag*\*j or convert a string
+   Return a complex number with the value *real* + *imag*\*1j or convert a string
    or number to a complex number.  If the first parameter is a string, it will
    be interpreted as a complex number and the function must be called without a
    second parameter.  The second parameter can never be a string. Each argument

Doc/library/importlib.rst

@@ -55,6 +55,12 @@ generically as an :term:`importer`) to participate in the import process.
     :pep:`451`
         A ModuleSpec Type for the Import System
 
+    :pep:`488`
+        Elimination of PYO files
+
+    :pep:`489`
+        Multi-phase extension module initialization
+
     :pep:`3120`
         Using UTF-8 as the Default Source Encoding
 
@@ -756,9 +762,9 @@ find and load modules.
     Only class methods are defined by this class to alleviate the need for
     instantiation.
 
-    .. note::
-       Due to limitations in the extension module C-API, for now
-       BuiltinImporter does not implement :meth:`Loader.exec_module`.
+    .. versionchanged:: 3.5
+       As part of :pep:`489`, the builtin importer now implements
+       :meth:`Loader.create_module` and :meth:`Loader.exec_module`
 
 
 .. class:: FrozenImporter
@@ -973,14 +979,18 @@ find and load modules.
 
       Path to the extension module.
 
-   .. method:: load_module(name=None)
+   .. method:: create_module(spec)
+
+      Creates the module object from the given specification in accordance
+      with :pep:`489`.
+
+      .. versionadded:: 3.5
+
+   .. method:: exec_module(module)
 
-      Loads the extension module if and only if *fullname* is the same as
-      :attr:`name` or is ``None``.
+      Initializes the given module object in accordance with :pep:`489`.
 
-      .. note::
-         Due to limitations in the extension module C-API, for now
-         ExtensionFileLoader does not implement :meth:`Loader.exec_module`.
+      .. versionadded:: 3.5
 
    .. method:: is_package(fullname)
 

Doc/library/inspect.rst

@@ -793,8 +793,10 @@ Classes and functions
    *n* elements listed in *args*.
 
    .. deprecated:: 3.0
-      Use :func:`getfullargspec` instead, which provides information about
-      keyword-only arguments and annotations.
+      Use :func:`signature` and
+      :ref:`Signature Object <inspect-signature-object>`, which provide a
+      better introspecting API for callables.  This function will be removed
+      in Python 3.6.
 
 
 .. function:: getfullargspec(func)
@@ -815,15 +817,16 @@ Classes and functions
 
    The first four items in the tuple correspond to :func:`getargspec`.
 
-   .. note::
-      Consider using the new :ref:`Signature Object <inspect-signature-object>`
-      interface, which provides a better way of introspecting functions.
-
    .. versionchanged:: 3.4
       This function is now based on :func:`signature`, but still ignores
       ``__wrapped__`` attributes and includes the already bound first
       parameter in the signature output for bound methods.
 
+   .. deprecated:: 3.5
+      Use :func:`signature` and
+      :ref:`Signature Object <inspect-signature-object>`, which provide a
+      better introspecting API for callables.
+
 
 .. function:: getargvalues(frame)
 
@@ -833,6 +836,11 @@ Classes and functions
    are the names of the ``*`` and ``**`` arguments or ``None``.  *locals* is the
    locals dictionary of the given frame.
 
+   .. deprecated:: 3.5
+      Use :func:`signature` and
+      :ref:`Signature Object <inspect-signature-object>`, which provide a
+      better introspecting API for callables.
+
 
 .. function:: formatargspec(args[, varargs, varkw, defaults, kwonlyargs, kwonlydefaults, annotations[, formatarg, formatvarargs, formatvarkw, formatvalue, formatreturns, formatannotations]])
 
@@ -855,13 +863,23 @@ Classes and functions
    >>> formatargspec(*getfullargspec(f))
    '(a: int, b: float)'
 
+   .. deprecated:: 3.5
+      Use :func:`signature` and
+      :ref:`Signature Object <inspect-signature-object>`, which provide a
+      better introspecting API for callables.
+
 
 .. function:: formatargvalues(args[, varargs, varkw, locals, formatarg, formatvarargs, formatvarkw, formatvalue])
 
    Format a pretty argument spec from the four values returned by
    :func:`getargvalues`.  The format\* arguments are the corresponding optional
    formatting functions that are called to turn names and values into strings.
 
+   .. deprecated:: 3.5
+      Use :func:`signature` and
+      :ref:`Signature Object <inspect-signature-object>`, which provide a
+      better introspecting API for callables.
+
 
 .. function:: getmro(cls)
 
@@ -896,8 +914,8 @@ Classes and functions
 
    .. versionadded:: 3.2
 
-   .. note::
-      Consider using the new :meth:`Signature.bind` instead.
+   .. deprecated:: 3.5
+      Use :meth:`Signature.bind` and :meth:`Signature.bind_partial` instead.
 
 
 .. function:: getclosurevars(func)

Doc/library/stdtypes.rst

@@ -1937,6 +1937,16 @@ expression support in the :mod:`re` module).
       >>> 'www.example.com'.strip('cmowz.')
       'example'
 
+   The outermost leading and trailing *chars* argument values are stripped
+   from the string. Characters are removed from the leading end until
+   reaching a string character that is not contained in the set of
+   characters in *chars*. A similar action takes place on the trailing end.
+   For example::
+
+      >>> comment_string = '#....... Section 3.2.1 Issue #32 .......'
+      >>> comment_string.strip('.#! ')
+      'Section 3.2.1 Issue #32'
+
 
 .. method:: str.swapcase()