mirror of
https://github.com/python/cpython.git
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Python 3.12.0b2
This commit is contained in:
Thomas Wouters
parent
2d9ead219e
commit
e6c0efa25a
54 changed files with 1207 additions and 234 deletions
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@ -20,10 +20,10 @@
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#define PY_MINOR_VERSION 12
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#define PY_MICRO_VERSION 0
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#define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_BETA
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#define PY_RELEASE_SERIAL 1
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#define PY_RELEASE_SERIAL 2
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/* Version as a string */
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#define PY_VERSION "3.12.0b1+"
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#define PY_VERSION "3.12.0b2"
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/*--end constants--*/
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/* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.
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@ -1,5 +1,5 @@
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# -*- coding: utf-8 -*-
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# Autogenerated by Sphinx on Mon May 22 14:02:15 2023
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# Autogenerated by Sphinx on Tue Jun 6 16:12:51 2023
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topics = {'assert': 'The "assert" statement\n'
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'**********************\n'
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'\n'
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@ -538,77 +538,7 @@ topics = {'assert': 'The "assert" statement\n'
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' **PEP 492** - Coroutines with async and await syntax\n'
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' The proposal that made coroutines a proper standalone concept '
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'in\n'
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' Python, and added supporting syntax.\n'
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'\n'
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'-[ Footnotes ]-\n'
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'\n'
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'[1] The exception is propagated to the invocation stack unless '
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'there\n'
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' is a "finally" clause which happens to raise another '
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'exception.\n'
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' That new exception causes the old one to be lost.\n'
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'\n'
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'[2] In pattern matching, a sequence is defined as one of the\n'
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' following:\n'
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'\n'
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' * a class that inherits from "collections.abc.Sequence"\n'
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'\n'
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' * a Python class that has been registered as\n'
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' "collections.abc.Sequence"\n'
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'\n'
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' * a builtin class that has its (CPython) '
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'"Py_TPFLAGS_SEQUENCE"\n'
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' bit set\n'
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'\n'
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' * a class that inherits from any of the above\n'
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'\n'
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' The following standard library classes are sequences:\n'
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'\n'
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' * "array.array"\n'
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'\n'
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' * "collections.deque"\n'
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'\n'
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' * "list"\n'
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'\n'
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' * "memoryview"\n'
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'\n'
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' * "range"\n'
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'\n'
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' * "tuple"\n'
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'\n'
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' Note:\n'
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'\n'
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' Subject values of type "str", "bytes", and "bytearray" do '
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'not\n'
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' match sequence patterns.\n'
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'\n'
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'[3] In pattern matching, a mapping is defined as one of the '
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'following:\n'
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'\n'
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' * a class that inherits from "collections.abc.Mapping"\n'
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'\n'
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' * a Python class that has been registered as\n'
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' "collections.abc.Mapping"\n'
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'\n'
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' * a builtin class that has its (CPython) '
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'"Py_TPFLAGS_MAPPING"\n'
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' bit set\n'
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'\n'
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' * a class that inherits from any of the above\n'
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'\n'
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' The standard library classes "dict" and '
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'"types.MappingProxyType"\n'
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' are mappings.\n'
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'\n'
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'[4] A string literal appearing as the first statement in the '
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'function\n'
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' body is transformed into the function’s "__doc__" attribute '
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'and\n'
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' therefore the function’s *docstring*.\n'
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'\n'
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'[5] A string literal appearing as the first statement in the class\n'
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' body is transformed into the namespace’s "__doc__" item and\n'
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' therefore the class’s *docstring*.\n',
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' Python, and added supporting syntax.\n',
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'atom-identifiers': 'Identifiers (Names)\n'
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'*******************\n'
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'\n'
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@ -1748,8 +1678,8 @@ topics = {'assert': 'The "assert" statement\n'
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'standard\n'
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'type hierarchy):\n'
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'\n'
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' classdef ::= [decorators] "class" classname [inheritance] ":" '
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'suite\n'
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' classdef ::= [decorators] "class" classname [type_params] '
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'[inheritance] ":" suite\n'
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' inheritance ::= "(" [argument_list] ")"\n'
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' classname ::= identifier\n'
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'\n'
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@ -1813,6 +1743,19 @@ topics = {'assert': 'The "assert" statement\n'
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'"assignment_expression". Previously, the grammar was much more\n'
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'restrictive; see **PEP 614** for details.\n'
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'\n'
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'A list of type parameters may be given in square brackets '
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'immediately\n'
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'after the class’s name. This indicates to static type checkers '
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'that\n'
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'the class is generic. At runtime, the type parameters can be '
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'retrieved\n'
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'from the class’s "__type_params__" attribute. See Generic classes '
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'for\n'
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'more.\n'
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'\n'
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'Changed in version 3.12: Type parameter lists are new in Python '
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'3.12.\n'
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'\n'
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'**Programmer’s note:** Variables defined in the class definition '
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'are\n'
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'class attributes; they are shared by instances. Instance '
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@ -3554,8 +3497,8 @@ topics = {'assert': 'The "assert" statement\n'
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'(see\n'
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'section The standard type hierarchy):\n'
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'\n'
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' funcdef ::= [decorators] "def" funcname "(" '
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'[parameter_list] ")"\n'
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' funcdef ::= [decorators] "def" funcname '
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'[type_params] "(" [parameter_list] ")"\n'
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' ["->" expression] ":" suite\n'
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' decorators ::= decorator+\n'
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' decorator ::= "@" assignment_expression '
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@ -3617,6 +3560,19 @@ topics = {'assert': 'The "assert" statement\n'
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'"assignment_expression". Previously, the grammar was much more\n'
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'restrictive; see **PEP 614** for details.\n'
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'\n'
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'A list of type parameters may be given in square brackets '
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'between the\n'
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'function’s name and the opening parenthesis for its parameter '
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'list.\n'
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'This indicates to static type checkers that the function is '
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'generic.\n'
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'At runtime, the type parameters can be retrieved from the '
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'function’s\n'
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'"__type_params__" attribute. See Generic functions for more.\n'
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'\n'
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'Changed in version 3.12: Type parameter lists are new in Python '
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'3.12.\n'
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'\n'
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'When one or more *parameters* have the form *parameter* "="\n'
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'*expression*, the function is said to have “default parameter '
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'values.”\n'
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@ -3759,8 +3715,8 @@ topics = {'assert': 'The "assert" statement\n'
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'standard\n'
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'type hierarchy):\n'
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'\n'
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' classdef ::= [decorators] "class" classname [inheritance] '
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'":" suite\n'
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' classdef ::= [decorators] "class" classname [type_params] '
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'[inheritance] ":" suite\n'
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' inheritance ::= "(" [argument_list] ")"\n'
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' classname ::= identifier\n'
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'\n'
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@ -3828,6 +3784,19 @@ topics = {'assert': 'The "assert" statement\n'
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'"assignment_expression". Previously, the grammar was much more\n'
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'restrictive; see **PEP 614** for details.\n'
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'\n'
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'A list of type parameters may be given in square brackets '
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'immediately\n'
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'after the class’s name. This indicates to static type checkers '
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'that\n'
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'the class is generic. At runtime, the type parameters can be '
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'retrieved\n'
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'from the class’s "__type_params__" attribute. See Generic '
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'classes for\n'
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'more.\n'
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'\n'
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'Changed in version 3.12: Type parameter lists are new in Python '
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'3.12.\n'
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'\n'
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'**Programmer’s note:** Variables defined in the class definition '
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'are\n'
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'class attributes; they are shared by instances. Instance '
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|
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@ -3985,6 +3954,272 @@ topics = {'assert': 'The "assert" statement\n'
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'concept in\n'
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' Python, and added supporting syntax.\n'
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'\n'
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'\n'
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'Type parameter lists\n'
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'====================\n'
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'\n'
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'New in version 3.12.\n'
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'\n'
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' type_params ::= "[" type_param ("," type_param)* "]"\n'
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' type_param ::= typevar | typevartuple | paramspec\n'
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' typevar ::= identifier (":" expression)?\n'
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' typevartuple ::= "*" identifier\n'
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' paramspec ::= "**" identifier\n'
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'\n'
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'Functions (including coroutines), classes and type aliases may '
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'contain\n'
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'a type parameter list:\n'
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'\n'
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' def max[T](args: list[T]) -> T:\n'
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' ...\n'
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'\n'
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' async def amax[T](args: list[T]) -> T:\n'
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' ...\n'
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'\n'
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' class Bag[T]:\n'
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' def __iter__(self) -> Iterator[T]:\n'
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' ...\n'
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'\n'
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' def add(self, arg: T) -> None:\n'
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' ...\n'
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'\n'
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' type ListOrSet[T] = list[T] | set[T]\n'
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'\n'
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'Semantically, this indicates that the function, class, or type '
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'alias\n'
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'is generic over a type variable. This information is primarily '
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'used by\n'
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'static type checkers, and at runtime, generic objects behave '
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'much like\n'
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'their non-generic counterparts.\n'
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'\n'
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'Type parameters are declared in square brackets ("[]") '
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'immediately\n'
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'after the name of the function, class, or type alias. The type\n'
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'parameters are accessible within the scope of the generic '
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'object, but\n'
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'not elsewhere. Thus, after a declaration "def func[T](): pass", '
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'the\n'
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'name "T" is not available in the module scope. Below, the '
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'semantics of\n'
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'generic objects are described with more precision. The scope of '
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'type\n'
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'parameters is modeled with a special function (technically, an\n'
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'annotation scope) that wraps the creation of the generic '
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'object.\n'
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'\n'
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'Generic functions, classes, and type aliases have a '
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'"__type_params__"\n'
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'attribute listing their type parameters.\n'
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'\n'
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'Type parameters come in three kinds:\n'
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'\n'
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'* "typing.TypeVar", introduced by a plain name (e.g., "T").\n'
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' Semantically, this represents a single type to a type '
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'checker.\n'
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'\n'
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'* "typing.TypeVarTuple", introduced by a name prefixed with a '
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'single\n'
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' asterisk (e.g., "*Ts"). Semantically, this stands for a tuple '
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'of any\n'
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' number of types.\n'
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'\n'
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'* "typing.ParamSpec", introduced by a name prefixed with two '
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'asterisks\n'
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' (e.g., "**P"). Semantically, this stands for the parameters of '
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'a\n'
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' callable.\n'
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'\n'
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'"typing.TypeVar" declarations can define *bounds* and '
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'*constraints*\n'
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'with a colon (":") followed by an expression. A single '
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'expression\n'
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'after the colon indicates a bound (e.g. "T: int"). Semantically, '
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'this\n'
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'means that the "typing.TypeVar" can only represent types that '
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'are a\n'
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'subtype of this bound. A parenthesized tuple of expressions '
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'after the\n'
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'colon indicates a set of constraints (e.g. "T: (str, bytes)"). '
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'Each\n'
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'member of the tuple should be a type (again, this is not '
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'enforced at\n'
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'runtime). Constrained type variables can only take on one of the '
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'types\n'
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'in the list of constraints.\n'
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'\n'
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'For "typing.TypeVar"s declared using the type parameter list '
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'syntax,\n'
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'the bound and constraints are not evaluated when the generic '
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'object is\n'
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'created, but only when the value is explicitly accessed through '
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'the\n'
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'attributes "__bound__" and "__constraints__". To accomplish '
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'this, the\n'
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'bounds or constraints are evaluated in a separate annotation '
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'scope.\n'
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'\n'
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'"typing.TypeVarTuple"s and "typing.ParamSpec"s cannot have '
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'bounds or\n'
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'constraints.\n'
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'\n'
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'The following example indicates the full set of allowed type '
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'parameter\n'
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'declarations:\n'
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'\n'
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' def overly_generic[\n'
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' SimpleTypeVar,\n'
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' TypeVarWithBound: int,\n'
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' TypeVarWithConstraints: (str, bytes),\n'
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' *SimpleTypeVarTuple,\n'
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' **SimpleParamSpec,\n'
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' ](\n'
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' a: SimpleTypeVar,\n'
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' b: TypeVarWithBound,\n'
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' c: Callable[SimpleParamSpec, TypeVarWithConstraints],\n'
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' *d: SimpleTypeVarTuple,\n'
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' ): ...\n'
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'\n'
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'\n'
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'Generic functions\n'
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'-----------------\n'
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'\n'
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'Generic functions are declared as follows:\n'
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'\n'
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' def func[T](arg: T): ...\n'
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'\n'
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'This syntax is equivalent to:\n'
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'\n'
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' annotation-def TYPE_PARAMS_OF_func():\n'
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' T = typing.TypeVar("T")\n'
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' def func(arg: T): ...\n'
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' func.__type_params__ = (T,)\n'
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' return func\n'
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' func = TYPE_PARAMS_OF_func()\n'
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'\n'
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'Here "annotation-def" indicates an annotation scope, which is '
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'not\n'
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'actually bound to any name at runtime. (One other liberty is '
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'taken in\n'
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'the translation: the syntax does not go through attribute access '
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'on\n'
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'the "typing" module, but creates an instance of '
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'"typing.TypeVar"\n'
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'directly.)\n'
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'\n'
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'The annotations of generic functions are evaluated within the\n'
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'annotation scope used for declaring the type parameters, but '
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'the\n'
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'function’s defaults and decorators are not.\n'
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'\n'
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'The following example illustrates the scoping rules for these '
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'cases,\n'
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'as well as for additional flavors of type parameters:\n'
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'\n'
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' @decorator\n'
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' def func[T: int, *Ts, **P](*args: *Ts, arg: Callable[P, T] = '
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'some_default):\n'
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' ...\n'
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'\n'
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'Except for the lazy evaluation of the "TypeVar" bound, this is\n'
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'equivalent to:\n'
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'\n'
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' DEFAULT_OF_arg = some_default\n'
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'\n'
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' annotation-def TYPE_PARAMS_OF_func():\n'
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'\n'
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' annotation-def BOUND_OF_T():\n'
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' return int\n'
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' # In reality, BOUND_OF_T() is evaluated only on demand.\n'
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' T = typing.TypeVar("T", bound=BOUND_OF_T())\n'
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'\n'
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' Ts = typing.TypeVarTuple("Ts")\n'
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' P = typing.ParamSpec("P")\n'
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'\n'
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' def func(*args: *Ts, arg: Callable[P, T] = '
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'DEFAULT_OF_arg):\n'
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' ...\n'
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'\n'
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' func.__type_params__ = (T, Ts, P)\n'
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' return func\n'
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' func = decorator(TYPE_PARAMS_OF_func())\n'
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'\n'
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'The capitalized names like "DEFAULT_OF_arg" are not actually '
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'bound at\n'
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'runtime.\n'
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'\n'
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'\n'
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'Generic classes\n'
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'---------------\n'
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'\n'
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'Generic classes are declared as follows:\n'
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'\n'
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' class Bag[T]: ...\n'
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'\n'
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'This syntax is equivalent to:\n'
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'\n'
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' annotation-def TYPE_PARAMS_OF_Bag():\n'
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' T = typing.TypeVar("T")\n'
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' class Bag(typing.Generic[T]):\n'
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' __type_params__ = (T,)\n'
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' ...\n'
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' return Bag\n'
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' Bag = TYPE_PARAMS_OF_Bag()\n'
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'\n'
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'Here again "annotation-def" (not a real keyword) indicates an\n'
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'annotation scope, and the name "TYPE_PARAMS_OF_Bag" is not '
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'actually\n'
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'bound at runtime.\n'
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'\n'
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'Generic classes implicitly inherit from "typing.Generic". The '
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'base\n'
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'classes and keyword arguments of generic classes are evaluated '
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'within\n'
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'the type scope for the type parameters, and decorators are '
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'evaluated\n'
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'outside that scope. This is illustrated by this example:\n'
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'\n'
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' @decorator\n'
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' class Bag(Base[T], arg=T): ...\n'
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'\n'
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'This is equivalent to:\n'
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'\n'
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' annotation-def TYPE_PARAMS_OF_Bag():\n'
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' T = typing.TypeVar("T")\n'
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||||
' class Bag(Base[T], typing.Generic[T], arg=T):\n'
|
||||
' __type_params__ = (T,)\n'
|
||||
' ...\n'
|
||||
' return Bag\n'
|
||||
' Bag = decorator(TYPE_PARAMS_OF_Bag())\n'
|
||||
'\n'
|
||||
'\n'
|
||||
'Generic type aliases\n'
|
||||
'--------------------\n'
|
||||
'\n'
|
||||
'The "type" statement can also be used to create a generic type '
|
||||
'alias:\n'
|
||||
'\n'
|
||||
' type ListOrSet[T] = list[T] | set[T]\n'
|
||||
'\n'
|
||||
'Except for the lazy evaluation of the value, this is equivalent '
|
||||
'to:\n'
|
||||
'\n'
|
||||
' annotation-def TYPE_PARAMS_OF_ListOrSet():\n'
|
||||
' T = typing.TypeVar("T")\n'
|
||||
'\n'
|
||||
' annotation-def VALUE_OF_ListOrSet():\n'
|
||||
' return list[T] | set[T]\n'
|
||||
' # In reality, the value is lazily evaluated\n'
|
||||
' return typing.TypeAliasType("ListOrSet", '
|
||||
'VALUE_OF_ListOrSet(), type_params=(T,))\n'
|
||||
' ListOrSet = TYPE_PARAMS_OF_ListOrSet()\n'
|
||||
'\n'
|
||||
'Here, "annotation-def" (not a real keyword) indicates an '
|
||||
'annotation\n'
|
||||
'scope. The capitalized names like "TYPE_PARAMS_OF_ListOrSet" are '
|
||||
'not\n'
|
||||
'actually bound at runtime.\n'
|
||||
'\n'
|
||||
'-[ Footnotes ]-\n'
|
||||
'\n'
|
||||
'[1] The exception is propagated to the invocation stack unless '
|
||||
|
|
@ -5692,6 +5927,10 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'\n'
|
||||
'* "import" statements.\n'
|
||||
'\n'
|
||||
'* "type" statements.\n'
|
||||
'\n'
|
||||
'* type parameter lists.\n'
|
||||
'\n'
|
||||
'The "import" statement of the form "from ... import *" binds '
|
||||
'all names\n'
|
||||
'defined in the imported module, except those beginning with an\n'
|
||||
|
|
@ -5798,7 +6037,9 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'scope.\n'
|
||||
'"SyntaxError" is raised at compile time if the given name does '
|
||||
'not\n'
|
||||
'exist in any enclosing function scope.\n'
|
||||
'exist in any enclosing function scope. Type parameters cannot '
|
||||
'be\n'
|
||||
'rebound with the "nonlocal" statement.\n'
|
||||
'\n'
|
||||
'The namespace for a module is automatically created the first '
|
||||
'time a\n'
|
||||
|
|
@ -5821,17 +6062,162 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'the class. The scope of names defined in a class block is '
|
||||
'limited to\n'
|
||||
'the class block; it does not extend to the code blocks of '
|
||||
'methods –\n'
|
||||
'this includes comprehensions and generator expressions since '
|
||||
'they are\n'
|
||||
'implemented using a function scope. This means that the '
|
||||
'following\n'
|
||||
'will fail:\n'
|
||||
'methods.\n'
|
||||
'This includes comprehensions and generator expressions, but it '
|
||||
'does\n'
|
||||
'not include annotation scopes, which have access to their '
|
||||
'enclosing\n'
|
||||
'class scopes. This means that the following will fail:\n'
|
||||
'\n'
|
||||
' class A:\n'
|
||||
' a = 42\n'
|
||||
' b = list(a + i for i in range(10))\n'
|
||||
'\n'
|
||||
'However, the following will succeed:\n'
|
||||
'\n'
|
||||
' class A:\n'
|
||||
' type Alias = Nested\n'
|
||||
' class Nested: pass\n'
|
||||
'\n'
|
||||
" print(A.Alias.__value__) # <type 'A.Nested'>\n"
|
||||
'\n'
|
||||
'\n'
|
||||
'Annotation scopes\n'
|
||||
'-----------------\n'
|
||||
'\n'
|
||||
'Type parameter lists and "type" statements introduce '
|
||||
'*annotation\n'
|
||||
'scopes*, which behave mostly like function scopes, but with '
|
||||
'some\n'
|
||||
'exceptions discussed below. *Annotations* currently do not use\n'
|
||||
'annotation scopes, but they are expected to use annotation '
|
||||
'scopes in\n'
|
||||
'Python 3.13 when **PEP 649** is implemented.\n'
|
||||
'\n'
|
||||
'Annotation scopes are used in the following contexts:\n'
|
||||
'\n'
|
||||
'* Type parameter lists for generic type aliases.\n'
|
||||
'\n'
|
||||
'* Type parameter lists for generic functions. A generic '
|
||||
'function’s\n'
|
||||
' annotations are executed within the annotation scope, but '
|
||||
'its\n'
|
||||
' defaults and decorators are not.\n'
|
||||
'\n'
|
||||
'* Type parameter lists for generic classes. A generic class’s '
|
||||
'base\n'
|
||||
' classes and keyword arguments are executed within the '
|
||||
'annotation\n'
|
||||
' scope, but its decorators are not.\n'
|
||||
'\n'
|
||||
'* The bounds and constraints for type variables (lazily '
|
||||
'evaluated).\n'
|
||||
'\n'
|
||||
'* The value of type aliases (lazily evaluated).\n'
|
||||
'\n'
|
||||
'Annotation scopes differ from function scopes in the following '
|
||||
'ways:\n'
|
||||
'\n'
|
||||
'* Annotation scopes have access to their enclosing class '
|
||||
'namespace. If\n'
|
||||
' an annotation scope is immediately within a class scope, or '
|
||||
'within\n'
|
||||
' another annotation scope that is immediately within a class '
|
||||
'scope,\n'
|
||||
' the code in the annotation scope can use names defined in the '
|
||||
'class\n'
|
||||
' scope as if it were executed directly within the class body. '
|
||||
'This\n'
|
||||
' contrasts with regular functions defined within classes, '
|
||||
'which\n'
|
||||
' cannot access names defined in the class scope.\n'
|
||||
'\n'
|
||||
'* Expressions in annotation scopes cannot contain "yield", '
|
||||
'"yield\n'
|
||||
' from", "await", or ":=" expressions. (These expressions are '
|
||||
'allowed\n'
|
||||
' in other scopes contained within the annotation scope.)\n'
|
||||
'\n'
|
||||
'* Names defined in annotation scopes cannot be rebound with '
|
||||
'"nonlocal"\n'
|
||||
' statements in inner scopes. This includes only type '
|
||||
'parameters, as\n'
|
||||
' no other syntactic elements that can appear within annotation '
|
||||
'scopes\n'
|
||||
' can introduce new names.\n'
|
||||
'\n'
|
||||
'* While annotation scopes have an internal name, that name is '
|
||||
'not\n'
|
||||
' reflected in the *__qualname__* of objects defined within the '
|
||||
'scope.\n'
|
||||
' Instead, the "__qualname__" of such objects is as if the '
|
||||
'object were\n'
|
||||
' defined in the enclosing scope.\n'
|
||||
'\n'
|
||||
'New in version 3.12: Annotation scopes were introduced in '
|
||||
'Python 3.12\n'
|
||||
'as part of **PEP 695**.\n'
|
||||
'\n'
|
||||
'\n'
|
||||
'Lazy evaluation\n'
|
||||
'---------------\n'
|
||||
'\n'
|
||||
'The values of type aliases created through the "type" statement '
|
||||
'are\n'
|
||||
'*lazily evaluated*. The same applies to the bounds and '
|
||||
'constraints of\n'
|
||||
'type variables created through the type parameter syntax. This '
|
||||
'means\n'
|
||||
'that they are not evaluated when the type alias or type '
|
||||
'variable is\n'
|
||||
'created. Instead, they are only evaluated when doing so is '
|
||||
'necessary\n'
|
||||
'to resolve an attribute access.\n'
|
||||
'\n'
|
||||
'Example:\n'
|
||||
'\n'
|
||||
' >>> type Alias = 1/0\n'
|
||||
' >>> Alias.__value__\n'
|
||||
' Traceback (most recent call last):\n'
|
||||
' ...\n'
|
||||
' ZeroDivisionError: division by zero\n'
|
||||
' >>> def func[T: 1/0](): pass\n'
|
||||
' >>> T = func.__type_params__[0]\n'
|
||||
' >>> T.__bound__\n'
|
||||
' Traceback (most recent call last):\n'
|
||||
' ...\n'
|
||||
' ZeroDivisionError: division by zero\n'
|
||||
'\n'
|
||||
'Here the exception is raised only when the "__value__" '
|
||||
'attribute of\n'
|
||||
'the type alias or the "__bound__" attribute of the type '
|
||||
'variable is\n'
|
||||
'accessed.\n'
|
||||
'\n'
|
||||
'This behavior is primarily useful for references to types that '
|
||||
'have\n'
|
||||
'not yet been defined when the type alias or type variable is '
|
||||
'created.\n'
|
||||
'For example, lazy evaluation enables creation of mutually '
|
||||
'recursive\n'
|
||||
'type aliases:\n'
|
||||
'\n'
|
||||
' from typing import Literal\n'
|
||||
'\n'
|
||||
' type SimpleExpr = int | Parenthesized\n'
|
||||
' type Parenthesized = tuple[Literal["("], Expr, '
|
||||
'Literal[")"]]\n'
|
||||
' type Expr = SimpleExpr | tuple[SimpleExpr, Literal["+", '
|
||||
'"-"], Expr]\n'
|
||||
'\n'
|
||||
'Lazily evaluated values are evaluated in annotation scope, '
|
||||
'which means\n'
|
||||
'that names that appear inside the lazily evaluated value are '
|
||||
'looked up\n'
|
||||
'as if they were used in the immediately enclosing scope.\n'
|
||||
'\n'
|
||||
'New in version 3.12.\n'
|
||||
'\n'
|
||||
'\n'
|
||||
'Builtins and restricted execution\n'
|
||||
'---------------------------------\n'
|
||||
|
|
@ -6872,8 +7258,8 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'(see\n'
|
||||
'section The standard type hierarchy):\n'
|
||||
'\n'
|
||||
' funcdef ::= [decorators] "def" funcname "(" '
|
||||
'[parameter_list] ")"\n'
|
||||
' funcdef ::= [decorators] "def" funcname '
|
||||
'[type_params] "(" [parameter_list] ")"\n'
|
||||
' ["->" expression] ":" suite\n'
|
||||
' decorators ::= decorator+\n'
|
||||
' decorator ::= "@" assignment_expression '
|
||||
|
|
@ -6935,6 +7321,19 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'"assignment_expression". Previously, the grammar was much more\n'
|
||||
'restrictive; see **PEP 614** for details.\n'
|
||||
'\n'
|
||||
'A list of type parameters may be given in square brackets '
|
||||
'between the\n'
|
||||
'function’s name and the opening parenthesis for its parameter '
|
||||
'list.\n'
|
||||
'This indicates to static type checkers that the function is '
|
||||
'generic.\n'
|
||||
'At runtime, the type parameters can be retrieved from the '
|
||||
'function’s\n'
|
||||
'"__type_params__" attribute. See Generic functions for more.\n'
|
||||
'\n'
|
||||
'Changed in version 3.12: Type parameter lists are new in Python '
|
||||
'3.12.\n'
|
||||
'\n'
|
||||
'When one or more *parameters* have the form *parameter* "="\n'
|
||||
'*expression*, the function is said to have “default parameter '
|
||||
'values.”\n'
|
||||
|
|
@ -7277,19 +7676,24 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'\n'
|
||||
'Some identifiers are only reserved under specific contexts. '
|
||||
'These are\n'
|
||||
'known as *soft keywords*. The identifiers "match", "case" '
|
||||
'and "_" can\n'
|
||||
'syntactically act as keywords in contexts related to the '
|
||||
'pattern\n'
|
||||
'matching statement, but this distinction is done at the '
|
||||
'parser level,\n'
|
||||
'not when tokenizing.\n'
|
||||
'known as *soft keywords*. The identifiers "match", "case", '
|
||||
'"type" and\n'
|
||||
'"_" can syntactically act as keywords in certain contexts, '
|
||||
'but this\n'
|
||||
'distinction is done at the parser level, not when '
|
||||
'tokenizing.\n'
|
||||
'\n'
|
||||
'As soft keywords, their use with pattern matching is possible '
|
||||
'while\n'
|
||||
'still preserving compatibility with existing code that uses '
|
||||
'"match",\n'
|
||||
'"case" and "_" as identifier names.\n'
|
||||
'As soft keywords, their use in the grammar is possible while '
|
||||
'still\n'
|
||||
'preserving compatibility with existing code that uses these '
|
||||
'names as\n'
|
||||
'identifier names.\n'
|
||||
'\n'
|
||||
'"match", "case", and "_" are used in the "match" statement. '
|
||||
'"type" is\n'
|
||||
'used in the "type" statement.\n'
|
||||
'\n'
|
||||
'Changed in version 3.12: "type" is now a soft keyword.\n'
|
||||
'\n'
|
||||
'\n'
|
||||
'Reserved classes of identifiers\n'
|
||||
|
|
@ -7809,6 +8213,10 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'\n'
|
||||
'* "import" statements.\n'
|
||||
'\n'
|
||||
'* "type" statements.\n'
|
||||
'\n'
|
||||
'* type parameter lists.\n'
|
||||
'\n'
|
||||
'The "import" statement of the form "from ... import *" binds all '
|
||||
'names\n'
|
||||
'defined in the imported module, except those beginning with an\n'
|
||||
|
|
@ -7908,7 +8316,8 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'scope.\n'
|
||||
'"SyntaxError" is raised at compile time if the given name does '
|
||||
'not\n'
|
||||
'exist in any enclosing function scope.\n'
|
||||
'exist in any enclosing function scope. Type parameters cannot be\n'
|
||||
'rebound with the "nonlocal" statement.\n'
|
||||
'\n'
|
||||
'The namespace for a module is automatically created the first time '
|
||||
'a\n'
|
||||
|
|
@ -7930,18 +8339,156 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'of\n'
|
||||
'the class. The scope of names defined in a class block is limited '
|
||||
'to\n'
|
||||
'the class block; it does not extend to the code blocks of methods '
|
||||
'–\n'
|
||||
'this includes comprehensions and generator expressions since they '
|
||||
'are\n'
|
||||
'implemented using a function scope. This means that the '
|
||||
'following\n'
|
||||
'will fail:\n'
|
||||
'the class block; it does not extend to the code blocks of '
|
||||
'methods.\n'
|
||||
'This includes comprehensions and generator expressions, but it '
|
||||
'does\n'
|
||||
'not include annotation scopes, which have access to their '
|
||||
'enclosing\n'
|
||||
'class scopes. This means that the following will fail:\n'
|
||||
'\n'
|
||||
' class A:\n'
|
||||
' a = 42\n'
|
||||
' b = list(a + i for i in range(10))\n'
|
||||
'\n'
|
||||
'However, the following will succeed:\n'
|
||||
'\n'
|
||||
' class A:\n'
|
||||
' type Alias = Nested\n'
|
||||
' class Nested: pass\n'
|
||||
'\n'
|
||||
" print(A.Alias.__value__) # <type 'A.Nested'>\n"
|
||||
'\n'
|
||||
'\n'
|
||||
'Annotation scopes\n'
|
||||
'=================\n'
|
||||
'\n'
|
||||
'Type parameter lists and "type" statements introduce *annotation\n'
|
||||
'scopes*, which behave mostly like function scopes, but with some\n'
|
||||
'exceptions discussed below. *Annotations* currently do not use\n'
|
||||
'annotation scopes, but they are expected to use annotation scopes '
|
||||
'in\n'
|
||||
'Python 3.13 when **PEP 649** is implemented.\n'
|
||||
'\n'
|
||||
'Annotation scopes are used in the following contexts:\n'
|
||||
'\n'
|
||||
'* Type parameter lists for generic type aliases.\n'
|
||||
'\n'
|
||||
'* Type parameter lists for generic functions. A generic '
|
||||
'function’s\n'
|
||||
' annotations are executed within the annotation scope, but its\n'
|
||||
' defaults and decorators are not.\n'
|
||||
'\n'
|
||||
'* Type parameter lists for generic classes. A generic class’s '
|
||||
'base\n'
|
||||
' classes and keyword arguments are executed within the '
|
||||
'annotation\n'
|
||||
' scope, but its decorators are not.\n'
|
||||
'\n'
|
||||
'* The bounds and constraints for type variables (lazily '
|
||||
'evaluated).\n'
|
||||
'\n'
|
||||
'* The value of type aliases (lazily evaluated).\n'
|
||||
'\n'
|
||||
'Annotation scopes differ from function scopes in the following '
|
||||
'ways:\n'
|
||||
'\n'
|
||||
'* Annotation scopes have access to their enclosing class '
|
||||
'namespace. If\n'
|
||||
' an annotation scope is immediately within a class scope, or '
|
||||
'within\n'
|
||||
' another annotation scope that is immediately within a class '
|
||||
'scope,\n'
|
||||
' the code in the annotation scope can use names defined in the '
|
||||
'class\n'
|
||||
' scope as if it were executed directly within the class body. '
|
||||
'This\n'
|
||||
' contrasts with regular functions defined within classes, which\n'
|
||||
' cannot access names defined in the class scope.\n'
|
||||
'\n'
|
||||
'* Expressions in annotation scopes cannot contain "yield", "yield\n'
|
||||
' from", "await", or ":=" expressions. (These expressions are '
|
||||
'allowed\n'
|
||||
' in other scopes contained within the annotation scope.)\n'
|
||||
'\n'
|
||||
'* Names defined in annotation scopes cannot be rebound with '
|
||||
'"nonlocal"\n'
|
||||
' statements in inner scopes. This includes only type parameters, '
|
||||
'as\n'
|
||||
' no other syntactic elements that can appear within annotation '
|
||||
'scopes\n'
|
||||
' can introduce new names.\n'
|
||||
'\n'
|
||||
'* While annotation scopes have an internal name, that name is not\n'
|
||||
' reflected in the *__qualname__* of objects defined within the '
|
||||
'scope.\n'
|
||||
' Instead, the "__qualname__" of such objects is as if the object '
|
||||
'were\n'
|
||||
' defined in the enclosing scope.\n'
|
||||
'\n'
|
||||
'New in version 3.12: Annotation scopes were introduced in Python '
|
||||
'3.12\n'
|
||||
'as part of **PEP 695**.\n'
|
||||
'\n'
|
||||
'\n'
|
||||
'Lazy evaluation\n'
|
||||
'===============\n'
|
||||
'\n'
|
||||
'The values of type aliases created through the "type" statement '
|
||||
'are\n'
|
||||
'*lazily evaluated*. The same applies to the bounds and constraints '
|
||||
'of\n'
|
||||
'type variables created through the type parameter syntax. This '
|
||||
'means\n'
|
||||
'that they are not evaluated when the type alias or type variable '
|
||||
'is\n'
|
||||
'created. Instead, they are only evaluated when doing so is '
|
||||
'necessary\n'
|
||||
'to resolve an attribute access.\n'
|
||||
'\n'
|
||||
'Example:\n'
|
||||
'\n'
|
||||
' >>> type Alias = 1/0\n'
|
||||
' >>> Alias.__value__\n'
|
||||
' Traceback (most recent call last):\n'
|
||||
' ...\n'
|
||||
' ZeroDivisionError: division by zero\n'
|
||||
' >>> def func[T: 1/0](): pass\n'
|
||||
' >>> T = func.__type_params__[0]\n'
|
||||
' >>> T.__bound__\n'
|
||||
' Traceback (most recent call last):\n'
|
||||
' ...\n'
|
||||
' ZeroDivisionError: division by zero\n'
|
||||
'\n'
|
||||
'Here the exception is raised only when the "__value__" attribute '
|
||||
'of\n'
|
||||
'the type alias or the "__bound__" attribute of the type variable '
|
||||
'is\n'
|
||||
'accessed.\n'
|
||||
'\n'
|
||||
'This behavior is primarily useful for references to types that '
|
||||
'have\n'
|
||||
'not yet been defined when the type alias or type variable is '
|
||||
'created.\n'
|
||||
'For example, lazy evaluation enables creation of mutually '
|
||||
'recursive\n'
|
||||
'type aliases:\n'
|
||||
'\n'
|
||||
' from typing import Literal\n'
|
||||
'\n'
|
||||
' type SimpleExpr = int | Parenthesized\n'
|
||||
' type Parenthesized = tuple[Literal["("], Expr, Literal[")"]]\n'
|
||||
' type Expr = SimpleExpr | tuple[SimpleExpr, Literal["+", "-"], '
|
||||
'Expr]\n'
|
||||
'\n'
|
||||
'Lazily evaluated values are evaluated in annotation scope, which '
|
||||
'means\n'
|
||||
'that names that appear inside the lazily evaluated value are '
|
||||
'looked up\n'
|
||||
'as if they were used in the immediately enclosing scope.\n'
|
||||
'\n'
|
||||
'New in version 3.12.\n'
|
||||
'\n'
|
||||
'\n'
|
||||
'Builtins and restricted execution\n'
|
||||
'=================================\n'
|
||||
|
|
@ -9105,6 +9652,14 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'\n'
|
||||
' New in version 3.3.\n'
|
||||
'\n'
|
||||
'definition.__type_params__\n'
|
||||
'\n'
|
||||
' The type parameters of generic classes, functions, and '
|
||||
'type\n'
|
||||
' aliases.\n'
|
||||
'\n'
|
||||
' New in version 3.12.\n'
|
||||
'\n'
|
||||
'class.__mro__\n'
|
||||
'\n'
|
||||
' This attribute is a tuple of classes that are considered '
|
||||
|
|
@ -13430,6 +13985,14 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
'| |\n'
|
||||
' '
|
||||
'+---------------------------+---------------------------------+-------------+\n'
|
||||
' | "__type_params__" | A tuple containing the type '
|
||||
'| Writable |\n'
|
||||
' | | parameters of a generic '
|
||||
'| |\n'
|
||||
' | | function. '
|
||||
'| |\n'
|
||||
' '
|
||||
'+---------------------------+---------------------------------+-------------+\n'
|
||||
'\n'
|
||||
' Most of the attributes labelled “Writable” check the type of '
|
||||
'the\n'
|
||||
|
|
@ -13754,6 +14317,10 @@ topics = {'assert': 'The "assert" statement\n'
|
|||
' with "__annotations__", please see Annotations Best\n'
|
||||
' Practices.\n'
|
||||
'\n'
|
||||
' "__type_params__"\n'
|
||||
' A tuple containing the type parameters of a generic '
|
||||
'class.\n'
|
||||
'\n'
|
||||
'Class instances\n'
|
||||
' A class instance is created by calling a class object (see '
|
||||
'above).\n'
|
||||
|
|
|
|||
530
Misc/NEWS.d/3.12.0b2.rst
Normal file
530
Misc/NEWS.d/3.12.0b2.rst
Normal file
|
|
@ -0,0 +1,530 @@
|
|||
.. date: 2023-06-01-03-24-58
|
||||
.. gh-issue: 103142
|
||||
.. nonce: GLWDMX
|
||||
.. release date: 2023-06-06
|
||||
.. section: Security
|
||||
|
||||
The version of OpenSSL used in our binary builds has been upgraded to 1.1.1u
|
||||
to address several CVEs.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-24-09-29-08
|
||||
.. gh-issue: 99108
|
||||
.. nonce: hwS2cr
|
||||
.. section: Security
|
||||
|
||||
Refresh our new HACL* built-in :mod:`hashlib` code from upstream. Built-in
|
||||
SHA2 should be faster and an issue with SHA3 on 32-bit platforms is fixed.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-06-11-37-53
|
||||
.. gh-issue: 105259
|
||||
.. nonce: E2BGKL
|
||||
.. section: Core and Builtins
|
||||
|
||||
Don't include newline character for trailing ``NEWLINE`` tokens emitted in
|
||||
the :mod:`tokenize` module. Patch by Pablo Galindo
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-05-17-35-50
|
||||
.. gh-issue: 105324
|
||||
.. nonce: BqhiJJ
|
||||
.. section: Core and Builtins
|
||||
|
||||
Fix the main function of the :mod:`tokenize` module when reading from
|
||||
``sys.stdin``. Patch by Pablo Galindo
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-02-17-39-19
|
||||
.. gh-issue: 98963
|
||||
.. nonce: J4wJgk
|
||||
.. section: Core and Builtins
|
||||
|
||||
Restore the ability for a subclass of :class:`property` to define
|
||||
``__slots__`` or otherwise be dict-less by ignoring failures to set a
|
||||
docstring on such a class. This behavior had regressed in 3.12beta1. An
|
||||
:exc:`AttributeError` where there had not previously been one was disruptive
|
||||
to existing code.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-02-11-37-12
|
||||
.. gh-issue: 105194
|
||||
.. nonce: 4eu56B
|
||||
.. section: Core and Builtins
|
||||
|
||||
Do not escape with backslashes f-string format specifiers. Patch by Pablo
|
||||
Galindo
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-01-11-37-03
|
||||
.. gh-issue: 105162
|
||||
.. nonce: r8VCXk
|
||||
.. section: Core and Builtins
|
||||
|
||||
Fixed bug in generator.close()/throw() where an inner iterator would be
|
||||
ignored when the outer iterator was instrumented.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-31-19-35-22
|
||||
.. gh-issue: 105164
|
||||
.. nonce: 6Wajph
|
||||
.. section: Core and Builtins
|
||||
|
||||
Ensure annotations are set up correctly if the only annotation in a block is
|
||||
within a :keyword:`match` block. Patch by Jelle Zijlstra.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-31-08-10-59
|
||||
.. gh-issue: 104799
|
||||
.. nonce: 8kDWti
|
||||
.. section: Core and Builtins
|
||||
|
||||
Attributes of :mod:`ast` nodes that are lists now default to the empty list
|
||||
if omitted. This means that some code that previously raised
|
||||
:exc:`TypeError` when the AST node was used will now proceed with the empty
|
||||
list instead. Patch by Jelle Zijlstra.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-30-08-09-43
|
||||
.. gh-issue: 105035
|
||||
.. nonce: OWUlHy
|
||||
.. section: Core and Builtins
|
||||
|
||||
Fix :func:`super` calls on types with custom :attr:`tp_getattro`
|
||||
implementation (e.g. meta-types.)
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-27-21-50-48
|
||||
.. gh-issue: 105017
|
||||
.. nonce: 4sDyDV
|
||||
.. section: Core and Builtins
|
||||
|
||||
Show CRLF lines in the tokenize string attribute in both NL and NEWLINE
|
||||
tokens. Patch by Marta Gómez.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-27-16-57-11
|
||||
.. gh-issue: 105013
|
||||
.. nonce: IsDgDY
|
||||
.. section: Core and Builtins
|
||||
|
||||
Fix handling of multiline parenthesized lambdas in
|
||||
:func:`inspect.getsource`. Patch by Pablo Galindo
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-27-16-23-16
|
||||
.. gh-issue: 105017
|
||||
.. nonce: KQrsC0
|
||||
.. section: Core and Builtins
|
||||
|
||||
Do not include an additional final ``NL`` token when parsing files having
|
||||
CRLF lines. Patch by Marta Gómez.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-26-15-16-11
|
||||
.. gh-issue: 104976
|
||||
.. nonce: 6dLitD
|
||||
.. section: Core and Builtins
|
||||
|
||||
Ensure that trailing ``DEDENT`` :class:`tokenize.TokenInfo` objects emitted
|
||||
by the :mod:`tokenize` module are reported as in Python 3.11. Patch by Pablo
|
||||
Galindo
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-26-14-09-47
|
||||
.. gh-issue: 104972
|
||||
.. nonce: El2UjE
|
||||
.. section: Core and Builtins
|
||||
|
||||
Ensure that the ``line`` attribute in :class:`tokenize.TokenInfo` objects in
|
||||
the :mod:`tokenize` module are always correct. Patch by Pablo Galindo
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-25-21-40-39
|
||||
.. gh-issue: 104955
|
||||
.. nonce: LZx7jf
|
||||
.. section: Core and Builtins
|
||||
|
||||
Fix signature for the new :meth:`~object.__release_buffer__` slot. Patch by
|
||||
Jelle Zijlstra.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-24-12-10-54
|
||||
.. gh-issue: 104690
|
||||
.. nonce: HX3Jou
|
||||
.. section: Core and Builtins
|
||||
|
||||
Starting new threads and process creation through :func:`os.fork` during
|
||||
interpreter shutdown (such as from :mod:`atexit` handlers) is no longer
|
||||
supported. It can lead to race condition between the main Python runtime
|
||||
thread freeing thread states while internal :mod:`threading` routines are
|
||||
trying to allocate and use the state of just created threads. Or forked
|
||||
children trying to use the mid-shutdown runtime and thread state in the
|
||||
child process.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-24-10-19-35
|
||||
.. gh-issue: 104879
|
||||
.. nonce: v-29NL
|
||||
.. section: Core and Builtins
|
||||
|
||||
Fix crash when accessing the ``__module__`` attribute of type aliases
|
||||
defined outside a module. Patch by Jelle Zijlstra.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-24-09-59-56
|
||||
.. gh-issue: 104825
|
||||
.. nonce: mQesie
|
||||
.. section: Core and Builtins
|
||||
|
||||
Tokens emitted by the :mod:`tokenize` module do not include an implicit
|
||||
``\n`` character in the ``line`` attribute anymore. Patch by Pablo Galindo
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-04-12-16-47
|
||||
.. gh-issue: 105280
|
||||
.. nonce: srRbCe
|
||||
.. section: Library
|
||||
|
||||
Fix bug where ``isinstance([], collections.abc.Mapping)`` could evaluate to
|
||||
``True`` if garbage collection happened at the wrong time. The bug was
|
||||
caused by changes to the implementation of :class:`typing.Protocol` in
|
||||
Python 3.12.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-02-14-57-11
|
||||
.. gh-issue: 105239
|
||||
.. nonce: SAmuuj
|
||||
.. section: Library
|
||||
|
||||
Fix longstanding bug where ``issubclass(object, typing.Protocol)`` would
|
||||
evaluate to ``True`` in some edge cases. Patch by Alex Waygood.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-02-02-38-26
|
||||
.. gh-issue: 105080
|
||||
.. nonce: 2imGMg
|
||||
.. section: Library
|
||||
|
||||
Fixed inconsistent signature on derived classes for
|
||||
:func:`inspect.signature`
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-31-16-58-42
|
||||
.. gh-issue: 105144
|
||||
.. nonce: Oqfn0V
|
||||
.. section: Library
|
||||
|
||||
Fix a recent regression in the :mod:`typing` module. The regression meant
|
||||
that doing ``class Foo(X, typing.Protocol)``, where ``X`` was a class that
|
||||
had :class:`abc.ABCMeta` as its metaclass, would then cause subsequent
|
||||
``isinstance(1, X)`` calls to erroneously raise :exc:`TypeError`. Patch by
|
||||
Alex Waygood.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-30-21-27-41
|
||||
.. gh-issue: 105113
|
||||
.. nonce: bDUPl_
|
||||
.. section: Library
|
||||
|
||||
Improve performance of :meth:`pathlib.PurePath.match` by compiling an
|
||||
:class:`re.Pattern` object for the entire pattern.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-26-01-31-30
|
||||
.. gh-issue: 101588
|
||||
.. nonce: RaqxFy
|
||||
.. section: Library
|
||||
|
||||
Deprecate undocumented copy/deepcopy/pickle support for itertools.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-25-23-34-54
|
||||
.. gh-issue: 103631
|
||||
.. nonce: x5Urye
|
||||
.. section: Library
|
||||
|
||||
Fix ``pathlib.PurePosixPath(pathlib.PureWindowsPath(...))`` not converting
|
||||
path separators to restore 3.11 compatible behavior.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-25-22-54-20
|
||||
.. gh-issue: 104947
|
||||
.. nonce: hi6TUr
|
||||
.. section: Library
|
||||
|
||||
Make comparisons between :class:`pathlib.PureWindowsPath` objects consistent
|
||||
across Windows and Posix to match 3.11 behavior.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-25-08-50-47
|
||||
.. gh-issue: 104935
|
||||
.. nonce: -rm1BR
|
||||
.. section: Library
|
||||
|
||||
Fix bugs with the interaction between :func:`typing.runtime_checkable` and
|
||||
:class:`typing.Generic` that were introduced by the :pep:`695`
|
||||
implementation. Patch by Jelle Zijlstra.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-24-09-34-23
|
||||
.. gh-issue: 104874
|
||||
.. nonce: oqyJSy
|
||||
.. section: Library
|
||||
|
||||
Document the ``__name__`` and ``__supertype__`` attributes of
|
||||
:class:`typing.NewType`. Patch by Jelle Zijlstra.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-23-18-31-49
|
||||
.. gh-issue: 104799
|
||||
.. nonce: MJYOw6
|
||||
.. section: Library
|
||||
|
||||
Adjust the location of the (see :pep:`695`) ``type_params`` field on
|
||||
:class:`ast.ClassDef`, :class:`ast.AsyncFunctionDef`, and
|
||||
:class:`ast.FunctionDef` to better preserve backward compatibility. Patch by
|
||||
Jelle Zijlstra
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-23-17-43-52
|
||||
.. gh-issue: 104797
|
||||
.. nonce: NR7KzF
|
||||
.. section: Library
|
||||
|
||||
Allow :class:`typing.Protocol` classes to inherit from
|
||||
:class:`collections.abc.Buffer`. Patch by Jelle Zijlstra.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-22-18-39-53
|
||||
.. gh-issue: 104372
|
||||
.. nonce: 7tDRaK
|
||||
.. section: Library
|
||||
|
||||
On Linux where :mod:`subprocess` can use the ``vfork()`` syscall for faster
|
||||
spawning, prevent the parent process from blocking other threads by dropping
|
||||
the GIL while it waits for the vfork'ed child process ``exec()`` outcome.
|
||||
This prevents spawning a binary from a slow filesystem from blocking the
|
||||
rest of the application.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-19-19-46-22
|
||||
.. gh-issue: 99108
|
||||
.. nonce: wqCg0t
|
||||
.. section: Library
|
||||
|
||||
We now release the GIL around built-in :mod:`hashlib` computations of
|
||||
reasonable size for the SHA families and MD5 hash functions, matching what
|
||||
our OpenSSL backed hash computations already does.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-11-23-03-00
|
||||
.. gh-issue: 104399
|
||||
.. nonce: MMatTP
|
||||
.. section: Library
|
||||
|
||||
Prepare the ``_tkinter`` module for building with Tcl 9.0 and future
|
||||
libtommath by replacing usage of deprecated functions
|
||||
:c:func:`mp_to_unsigned_bin_n` and :c:func:`mp_unsigned_bin_size` when
|
||||
necessary.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-02-18-22-55-48
|
||||
.. gh-issue: 102024
|
||||
.. nonce: RUmg_D
|
||||
.. section: Library
|
||||
|
||||
Reduce calls of ``_idle_semaphore.release()`` in
|
||||
:func:`concurrent.futures.thread._worker`.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-28-21-01-00
|
||||
.. gh-issue: 89455
|
||||
.. nonce: qAKRrA
|
||||
.. section: Documentation
|
||||
|
||||
Add missing documentation for the ``max_group_depth`` and
|
||||
``max_group_width`` parameters and the ``exceptions`` attribute of the
|
||||
:class:`traceback.TracebackException` class.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-28-19-08-42
|
||||
.. gh-issue: 89412
|
||||
.. nonce: j4cg7K
|
||||
.. section: Documentation
|
||||
|
||||
Add missing documentation for the ``end_lineno`` and ``end_offset``
|
||||
attributes of the :class:`traceback.TracebackException` class.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-25-22-34-31
|
||||
.. gh-issue: 104943
|
||||
.. nonce: J2v1Pc
|
||||
.. section: Documentation
|
||||
|
||||
Remove mentions of old Python versions in :class:`typing.NamedTuple`.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-06-06-09-08-10
|
||||
.. gh-issue: 90005
|
||||
.. nonce: 8mmeJQ
|
||||
.. section: Build
|
||||
|
||||
Fix a regression in :file:`configure` where we could end up unintentionally
|
||||
linking with ``libbsd``.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-26-15-44-20
|
||||
.. gh-issue: 89886
|
||||
.. nonce: _iSW-p
|
||||
.. section: Build
|
||||
|
||||
Autoconf 2.71 and aclocal 1.16.4 is now required to regenerate
|
||||
:file:`!configure`.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-31-16-14-31
|
||||
.. gh-issue: 105146
|
||||
.. nonce: gNjqq8
|
||||
.. section: Windows
|
||||
|
||||
Updated the links at the end of the installer to point to Discourse rather
|
||||
than the mailing lists.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-29-17-09-31
|
||||
.. gh-issue: 103646
|
||||
.. nonce: U8oGQx
|
||||
.. section: Windows
|
||||
|
||||
When installed from the Microsoft Store, ``pip`` no longer defaults to
|
||||
per-user installs. However, as the install directory is unwritable, it
|
||||
should automatically decide to do a per-user install anyway. This should
|
||||
resolve issues when ``pip`` is passed an option that conflicts with
|
||||
``--user``.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-29-11-38-53
|
||||
.. gh-issue: 88745
|
||||
.. nonce: cldf9G
|
||||
.. section: Windows
|
||||
|
||||
Improve performance of :func:`shutil.copy2` by using the operating system's
|
||||
``CopyFile2`` function. This may result in subtle changes to metadata copied
|
||||
along with some files, bringing them in line with normal OS behavior.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-24-21-00-57
|
||||
.. gh-issue: 104820
|
||||
.. nonce: ibyrpp
|
||||
.. section: Windows
|
||||
|
||||
Fixes :func:`~os.stat` and related functions on file systems that do not
|
||||
support file ID requests. This includes FAT32 and exFAT.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-23-19-26-28
|
||||
.. gh-issue: 104803
|
||||
.. nonce: gqxYml
|
||||
.. section: Windows
|
||||
|
||||
Add :func:`os.path.isdevdrive` to detect whether a path is on a Windows Dev
|
||||
Drive. Returns ``False`` on platforms that do not support Dev Drive, and is
|
||||
absent on non-Windows platforms.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-30-23-30-46
|
||||
.. gh-issue: 103142
|
||||
.. nonce: 55lMXQ
|
||||
.. section: macOS
|
||||
|
||||
Update macOS installer to use OpenSSL 1.1.1u.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-23-17-19-49
|
||||
.. gh-issue: 104719
|
||||
.. nonce: rvYXH-
|
||||
.. section: IDLE
|
||||
|
||||
Remove IDLE's modification of tokenize.tabsize and test other uses of
|
||||
tokenize data and methods.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-30-17-45-32
|
||||
.. gh-issue: 105115
|
||||
.. nonce: iRho1K
|
||||
.. section: C API
|
||||
|
||||
``PyTypeObject.tp_bases`` (and ``tp_mro``) for builtin static types are now
|
||||
shared by all interpreters, whereas in 3.12-beta1 they were stored on
|
||||
``PyInterpreterState``. Also note that now the tuples are immortal objects.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-30-10-15-13
|
||||
.. gh-issue: 105071
|
||||
.. nonce: dPtp7c
|
||||
.. section: C API
|
||||
|
||||
Add ``PyUnstable_Exc_PrepReraiseStar`` to the unstable C api to expose the
|
||||
implementation of :keyword:`except* <except_star>`.
|
||||
|
||||
..
|
||||
|
||||
.. date: 2023-05-19-10-22-34
|
||||
.. gh-issue: 104668
|
||||
.. nonce: MLX1g9
|
||||
.. section: C API
|
||||
|
||||
Don't call :c:var:`PyOS_InputHook` or :c:var:`PyOS_ReadlineFunctionPointer`
|
||||
in subinterpreters, since it's generally difficult to avoid using global
|
||||
state in their registered callbacks. This also avoids situations where
|
||||
extensions may find themselves running in a subinterpreter they don't
|
||||
support (or haven't yet been loaded in).
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Autoconf 2.71 and aclocal 1.16.4 is now required to regenerate
|
||||
:file:`!configure`.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Fix a regression in :file:`configure` where we could end up unintentionally linking with ``libbsd``.
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
Don't call :c:var:`PyOS_InputHook` or :c:var:`PyOS_ReadlineFunctionPointer`
|
||||
in subinterpreters, since it's generally difficult to avoid using global
|
||||
state in their registered callbacks. This also avoids situations where
|
||||
extensions may find themselves running in a subinterpreter they don't
|
||||
support (or haven't yet been loaded in).
|
||||
|
|
@ -1 +0,0 @@
|
|||
Add ``PyUnstable_Exc_PrepReraiseStar`` to the unstable C api to expose the implementation of :keyword:`except* <except_star>`.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
``PyTypeObject.tp_bases`` (and ``tp_mro``) for builtin static types are now
|
||||
shared by all interpreters, whereas in 3.12-beta1 they were stored on
|
||||
``PyInterpreterState``. Also note that now the tuples are immortal objects.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Tokens emitted by the :mod:`tokenize` module do not include an implicit
|
||||
``\n`` character in the ``line`` attribute anymore. Patch by Pablo Galindo
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix crash when accessing the ``__module__`` attribute of type aliases
|
||||
defined outside a module. Patch by Jelle Zijlstra.
|
||||
|
|
@ -1,6 +0,0 @@
|
|||
Starting new threads and process creation through :func:`os.fork` during interpreter
|
||||
shutdown (such as from :mod:`atexit` handlers) is no longer supported. It can lead
|
||||
to race condition between the main Python runtime thread freeing thread states while
|
||||
internal :mod:`threading` routines are trying to allocate and use the state of just
|
||||
created threads. Or forked children trying to use the mid-shutdown runtime and thread
|
||||
state in the child process.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix signature for the new :meth:`~object.__release_buffer__` slot. Patch by Jelle
|
||||
Zijlstra.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Ensure that the ``line`` attribute in :class:`tokenize.TokenInfo` objects in
|
||||
the :mod:`tokenize` module are always correct. Patch by Pablo Galindo
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Ensure that trailing ``DEDENT`` :class:`tokenize.TokenInfo` objects emitted
|
||||
by the :mod:`tokenize` module are reported as in Python 3.11. Patch by Pablo
|
||||
Galindo
|
||||
|
|
@ -1 +0,0 @@
|
|||
Do not include an additional final ``NL`` token when parsing files having CRLF lines. Patch by Marta Gómez.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix handling of multiline parenthesized lambdas in
|
||||
:func:`inspect.getsource`. Patch by Pablo Galindo
|
||||
|
|
@ -1 +0,0 @@
|
|||
Show CRLF lines in the tokenize string attribute in both NL and NEWLINE tokens. Patch by Marta Gómez.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix :func:`super` calls on types with custom :attr:`tp_getattro`
|
||||
implementation (e.g. meta-types.)
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
Attributes of :mod:`ast` nodes that are lists now default to the empty list
|
||||
if omitted. This means that some code that previously raised
|
||||
:exc:`TypeError` when the AST node was used will now proceed with the empty
|
||||
list instead. Patch by Jelle Zijlstra.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Ensure annotations are set up correctly if the only annotation in a block is
|
||||
within a :keyword:`match` block. Patch by Jelle Zijlstra.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fixed bug in generator.close()/throw() where an inner iterator would be
|
||||
ignored when the outer iterator was instrumented.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Do not escape with backslashes f-string format specifiers. Patch by Pablo
|
||||
Galindo
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
Restore the ability for a subclass of :class:`property` to define ``__slots__``
|
||||
or otherwise be dict-less by ignoring failures to set a docstring on such a
|
||||
class. This behavior had regressed in 3.12beta1. An :exc:`AttributeError`
|
||||
where there had not previously been one was disruptive to existing code.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix the main function of the :mod:`tokenize` module when reading from
|
||||
``sys.stdin``. Patch by Pablo Galindo
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Don't include newline character for trailing ``NEWLINE`` tokens emitted in
|
||||
the :mod:`tokenize` module. Patch by Pablo Galindo
|
||||
|
|
@ -1 +0,0 @@
|
|||
Remove mentions of old Python versions in :class:`typing.NamedTuple`.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Add missing documentation for the ``end_lineno`` and ``end_offset`` attributes
|
||||
of the :class:`traceback.TracebackException` class.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Add missing documentation for the ``max_group_depth`` and ``max_group_width``
|
||||
parameters and the ``exceptions`` attribute of the
|
||||
:class:`traceback.TracebackException` class.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Remove IDLE's modification of tokenize.tabsize and test other uses of
|
||||
tokenize data and methods.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Reduce calls of ``_idle_semaphore.release()`` in :func:`concurrent.futures.thread._worker`.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
Prepare the ``_tkinter`` module for building with Tcl 9.0 and future
|
||||
libtommath by replacing usage of deprecated functions
|
||||
:c:func:`mp_to_unsigned_bin_n` and :c:func:`mp_unsigned_bin_size`
|
||||
when necessary.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
We now release the GIL around built-in :mod:`hashlib` computations of
|
||||
reasonable size for the SHA families and MD5 hash functions, matching
|
||||
what our OpenSSL backed hash computations already does.
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
On Linux where :mod:`subprocess` can use the ``vfork()`` syscall for faster
|
||||
spawning, prevent the parent process from blocking other threads by dropping
|
||||
the GIL while it waits for the vfork'ed child process ``exec()`` outcome.
|
||||
This prevents spawning a binary from a slow filesystem from blocking the
|
||||
rest of the application.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Allow :class:`typing.Protocol` classes to inherit from
|
||||
:class:`collections.abc.Buffer`. Patch by Jelle Zijlstra.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
Adjust the location of the (see :pep:`695`) ``type_params`` field on
|
||||
:class:`ast.ClassDef`, :class:`ast.AsyncFunctionDef`, and
|
||||
:class:`ast.FunctionDef` to better preserve backward compatibility. Patch by
|
||||
Jelle Zijlstra
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Document the ``__name__`` and ``__supertype__`` attributes of
|
||||
:class:`typing.NewType`. Patch by Jelle Zijlstra.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Fix bugs with the interaction between :func:`typing.runtime_checkable` and
|
||||
:class:`typing.Generic` that were introduced by the :pep:`695`
|
||||
implementation. Patch by Jelle Zijlstra.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Make comparisons between :class:`pathlib.PureWindowsPath` objects consistent
|
||||
across Windows and Posix to match 3.11 behavior.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix ``pathlib.PurePosixPath(pathlib.PureWindowsPath(...))`` not converting
|
||||
path separators to restore 3.11 compatible behavior.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Deprecate undocumented copy/deepcopy/pickle support for itertools.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Improve performance of :meth:`pathlib.PurePath.match` by compiling an
|
||||
:class:`re.Pattern` object for the entire pattern.
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
Fix a recent regression in the :mod:`typing` module. The regression meant
|
||||
that doing ``class Foo(X, typing.Protocol)``, where ``X`` was a class that
|
||||
had :class:`abc.ABCMeta` as its metaclass, would then cause subsequent
|
||||
``isinstance(1, X)`` calls to erroneously raise :exc:`TypeError`. Patch by
|
||||
Alex Waygood.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Fixed inconsistent signature on derived classes for :func:`inspect.signature`
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fix longstanding bug where ``issubclass(object, typing.Protocol)`` would
|
||||
evaluate to ``True`` in some edge cases. Patch by Alex Waygood.
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
Fix bug where ``isinstance([], collections.abc.Mapping)`` could evaluate to
|
||||
``True`` if garbage collection happened at the wrong time. The bug was
|
||||
caused by changes to the implementation of :class:`typing.Protocol` in
|
||||
Python 3.12.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Refresh our new HACL* built-in :mod:`hashlib` code from upstream. Built-in
|
||||
SHA2 should be faster and an issue with SHA3 on 32-bit platforms is fixed.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
The version of OpenSSL used in our binary builds has been upgraded to 1.1.1u
|
||||
to address several CVEs.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Add :func:`os.path.isdevdrive` to detect whether a path is on a Windows Dev
|
||||
Drive. Returns ``False`` on platforms that do not support Dev Drive, and is
|
||||
absent on non-Windows platforms.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Fixes :func:`~os.stat` and related functions on file systems that do not
|
||||
support file ID requests. This includes FAT32 and exFAT.
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
Improve performance of :func:`shutil.copy2` by using the operating system's
|
||||
``CopyFile2`` function. This may result in subtle changes to metadata copied
|
||||
along with some files, bringing them in line with normal OS behavior.
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
When installed from the Microsoft Store, ``pip`` no longer defaults to
|
||||
per-user installs. However, as the install directory is unwritable, it
|
||||
should automatically decide to do a per-user install anyway. This should
|
||||
resolve issues when ``pip`` is passed an option that conflicts with
|
||||
``--user``.
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
Updated the links at the end of the installer to point to Discourse rather
|
||||
than the mailing lists.
|
||||
|
|
@ -1 +0,0 @@
|
|||
Update macOS installer to use OpenSSL 1.1.1u.
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
This is Python version 3.12.0 beta 1
|
||||
This is Python version 3.12.0 beta 2
|
||||
=====================================
|
||||
|
||||
.. image:: https://github.com/python/cpython/workflows/Tests/badge.svg
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue