mirror of
https://github.com/python/cpython
synced 2026-09-29 09:20:29 +03:00
[blurb] v3.8.0a1
This commit is contained in:
Łukasz Langa
parent
f75d59e1a8
commit
8efa3b69f6
886 changed files with 8977 additions and 1857 deletions
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Misc/NEWS.d/3.8.0a1.rst
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Replace optparse with argparse in setup.py
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Fix the python debug build when using COUNT_ALLOCS.
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gcc 8 has added a new warning heuristic to detect invalid function casts and
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a stock python build seems to hit that warning quite often. The most common
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is the cast of a METH_NOARGS function (that uses just one argument) to a
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PyCFunction. Fix this by adding a dummy argument to all functions that
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implement METH_NOARGS.
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Upgrade pip to 9.0.3 and setuptools to v39.0.1.
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The embedding tests can once again be built with clang 6.0
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By default, modules configured in `Modules/Setup` are no longer built with
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`-DPy_BUILD_CORE`. Instead, modules that specifically need that preprocessor
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definition include it in their individual entries.
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Add new triplets for mips r6 and riscv variants (used in extension
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suffixes).
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Update config.guess and config.sub files.
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Enable the verbose build for extension modules, when GNU make is passed
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macros on the command line.
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C compiler is now correctly detected from the standard environment
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variables. --without-gcc and --with-icc options have been removed.
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configure's check for "long double" has been simplified
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Enable CI builds on Visual Studio Team Services at
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https://python.visualstudio.com/cpython
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The --with-c-locale-warning configuration flag has been removed. It has had
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no effect for about a year.
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Ensures module definition files for the stable ABI on Windows are correctly
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regenerated.
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Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from ``OPT``. This
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option emitted annoying warnings when building extension modules written in
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C++.
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Add -g to LDFLAGS when compiling with LTO to get debug symbols.
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Rename Modules/Setup.dist to Modules/Setup, and remove the necessity to copy
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the former manually to the latter when updating the local source tree.
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Fix detection of C11 atomic support on clang.
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The Python shared library is now installed with write permission (mode 0755),
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which is the standard way of installing such libraries.
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Fix an undefined behaviour in the pthread implementation of
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:c:func:`PyThread_start_new_thread`: add a function wrapper to always return
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``NULL``.
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Fix for case where it was not possible to have both
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``HAVE_LINUX_VM_SOCKETS_H`` and ``HAVE_SOCKADDR_ALG`` be undefined.
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Make Sphinx warnings as errors in the Docs Makefile.
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Add JUnit XML output for regression tests and update Azure DevOps builds.
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Fixed SSL module build with OpenSSL & pedantic CFLAGS.
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Check for floating-point byte order in configure.ac using compilation tests
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instead of executing code, so that these checks work in cross-compiled
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builds.
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Update the outdated install-sh file to the latest revision from automake
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v1.16.1
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Have --with-lto works correctly with clang.
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Restores the use of pyexpatns.h to isolate our embedded copy of the expat C
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library so that its symbols do not conflict at link or dynamic loading time
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with an embedding application or other extension modules with their own
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version of libexpat.
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PCbuild: Set InlineFunctionExpansion to OnlyExplicitInline ("/Ob1" option)
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in pyproject.props in Debug mode to expand functions marked as inline. This
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change should make Python compiled in Debug mode a little bit faster on
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Windows.
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Fix a compiler error when statically linking `pyexpat` in `Modules/Setup`.
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When building Python with clang and LTO, LTO flags are no longer passed into
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CFLAGS to build third-party C extensions through distutils.
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Avoid leaking the linker flags from Link Time Optimizations (LTO)
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into distutils when compiling C extensions.
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``make profile-opt`` no longer replaces ``CFLAGS_NODIST`` with ``CFLAGS``. It
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now adds profile-guided optimization (PGO) flags to ``CFLAGS_NODIST``: existing
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``CFLAGS_NODIST`` flags are kept.
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Fix incorrect Solaris #ifdef checks to look for __sun && __SVR4 instead of sun when compiling.
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Remove asynciomodule.c from pythoncore.vcxproj
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Improved Azure Pipelines build steps and now verifying layouts correctly
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The _contextvars module is now built into the core Python library on
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Windows.
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:c:func:`PyUnicode_AsWideChar` and :c:func:`PyUnicode_AsWideCharString` no
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longer cache the ``wchar_t*`` representation of string objects.
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Document that m_traverse for multi-phase initialized modules can be called
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with m_state=NULL, and add a sanity check
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Embedding applications may once again call PySys_ResetWarnOptions,
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PySys_AddWarnOption, and PySys_AddXOption prior to calling Py_Initialize.
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:c:func:`PyExceptionClass_Name` will now return ``const char *`` instead of
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``char *``.
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Fixed error messages for :c:func:`PySequence_Size`,
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:c:func:`PySequence_GetItem`, :c:func:`PySequence_SetItem` and
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:c:func:`PySequence_DelItem` called with a mapping and
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:c:func:`PyMapping_Size` called with a sequence.
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Py_Main() can again be called after Py_Initialize(), as in Python 3.6.
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Added :c:func:`PyCompile_OpcodeStackEffectWithJump`.
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Fixed :exc:`SystemError` in :c:func:`PyArg_ParseTupleAndKeywords` when the
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``w*`` format unit is used for optional parameter.
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Return grammatically correct error message based on argument count.
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Patch by Karthikeyan Singaravelan.
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Fix pluralization in TypeError messages in getargs.c and typeobject.c:
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'1 argument' instead of '1 arguments' and '1 element' instead of '1 elements'.
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Py_DecodeLocale() and Py_EncodeLocale() now use the UTF-8 encoding on
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Windows if Py_LegacyWindowsFSEncodingFlag is zero.
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Ensure that :c:func:`PyObject_Print` always returns ``-1`` on error. Patch
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by Zackery Spytz.
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Adds _Py_SetProgramFullPath so embedders may override sys.executable
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Creation of a new ``Include/cpython/`` subdirectory.
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The :c:func:`_PyObject_GC_TRACK` and :c:func:`_PyObject_GC_UNTRACK` macros
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have been removed from the public C API.
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Conditionally declare :c:func:`Py_FinalizeEx()` (new in 3.6) based on
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Py_LIMITED_API. Patch by Arthur Neufeld.
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Internal APIs surrounded by ``#ifdef Py_BUILD_CORE`` have been moved from
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``Include/*.h`` headers to new header files ``Include/internal/pycore_*.h``.
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``make install`` now also installs the internal API:
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``Include/internal/*.h`` header files.
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The following C macros have been converted to static inline functions:
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:c:func:`Py_INCREF`, :c:func:`Py_DECREF`, :c:func:`Py_XINCREF`,
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:c:func:`Py_XDECREF`, :c:func:`PyObject_INIT`, :c:func:`PyObject_INIT_VAR`.
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Fix memory leak in :c:func:`PyUnicode_EncodeLocale` and
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:c:func:`PyUnicode_EncodeFSDefault` on error handling.
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Fixed :c:func:`_PyBytes_Resize` for empty bytes objects.
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The :c:func:`PyByteArray_Init` and :c:func:`PyByteArray_Fini` functions have
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been removed. They did nothing since Python 2.7.4 and Python 3.2.0, were
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excluded from the limited API (stable ABI), and were not documented.
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Remove references to 'getsockaddrarg' from various socket error messages.
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Patch by Oren Milman.
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Fix a crash in `os.utime()` in case of a bad ns argument. Patch by Oren
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Milman.
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Fix a crash in `ctypes.cast()` in case the type argument is a ctypes
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structured data type. Patch by Eryk Sun and Oren Milman.
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Fix assertion failures in the ``tell()`` method of ``io.TextIOWrapper``.
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Patch by Zackery Spytz.
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Fix the ``col_offset`` attribute for ast nodes ``ast.AsyncFor``,
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``ast.AsyncFunctionDef``, and ``ast.AsyncWith``. Previously, ``col_offset``
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pointed to the keyword after ``async``.
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Iterable unpacking is now allowed without parentheses in yield and return
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statements, e.g. ``yield 1, 2, 3, *rest``. Thanks to David Cuthbert for the
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change and Jordan Chapman for added tests.
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Yield expressions are now disallowed in comprehensions and generator
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expressions except the expression for the outermost iterable.
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New function unicodedata.is_normalized, which can check whether a string is
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in a specific normal form.
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Simplified the interpreter loop by moving the logic of unrolling the stack
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of blocks into the compiler. The compiler emits now explicit instructions
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for adjusting the stack of values and calling the cleaning up code for
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:keyword:`break`, :keyword:`continue` and :keyword:`return`.
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Removed opcodes :opcode:`BREAK_LOOP`, :opcode:`CONTINUE_LOOP`,
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:opcode:`SETUP_LOOP` and :opcode:`SETUP_EXCEPT`. Added new opcodes
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:opcode:`ROT_FOUR`, :opcode:`BEGIN_FINALLY` and :opcode:`CALL_FINALLY` and
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:opcode:`POP_FINALLY`. Changed the behavior of :opcode:`END_FINALLY` and
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:opcode:`WITH_CLEANUP_START`.
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A :keyword:`continue` statement is now allowed in the :keyword:`finally`
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clause.
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@ -1,2 +0,0 @@
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Fix possible crashing in builtin Unicode decoders caused by write
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out-of-bound errors when using customized decode error handlers.
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Fix the warning messages for Python/ast_unparse.c. Patch by Stéphane Wirtel
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Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
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For namespace packages, ensure that both ``__file__`` and
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``__spec__.origin`` are set to None.
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Remove the new API added in bpo-31356 (gc.ensure_disabled() context
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manager).
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Don't use temporary variables in cases of list/dict/set comprehensions
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Update Valgrind suppression list to account for the rename of
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``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
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@ -1,3 +0,0 @@
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Optimized iterating and containing test for literal lists consisting of
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non-constants: ``x in [a, b]`` and ``for x in [a, b]``. The case of all
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constant elements already was optimized.
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Make error message more revealing when there are non-str objects in ``__all__``.
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Importing names from already imported module with "from ... import ..." is
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now 30% faster if the module is not a package.
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Prevent jumps from 'return' and 'exception' trace events.
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@ -1,5 +0,0 @@
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Due to unexpected compatibility issues discovered during downstream beta
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testing, reverted :issue:`29463`. ``docstring`` field is removed from Module,
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ClassDef, FunctionDef, and AsyncFunctionDef ast nodes which was added in
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3.7a1. Docstring expression is restored as a first statement in their body.
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Based on patch by Inada Naoki.
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@ -1,4 +0,0 @@
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Fix a crash on fork when using a custom memory allocator (ex: using
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PYTHONMALLOC env var). _PyGILState_Reinit() and _PyInterpreterState_Enable()
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now use the default RAW memory allocator to allocate a new interpreters mutex
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on fork.
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@ -1 +0,0 @@
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Fixed jumping out of "with" block by setting f_lineno.
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@ -1,3 +0,0 @@
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Fixed bytecode generation for "async for" with a complex target. A
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StopAsyncIteration raised on assigning or unpacking will be now propagated
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instead of stopping the iteration.
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Fix rare Python crash due to bad refcounting in ``type_getattro()`` if a
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descriptor deletes itself from the class. Patch by Jeroen Demeyer.
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@ -1,6 +0,0 @@
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Added new opcode :opcode:`END_ASYNC_FOR` and fixes the following issues:
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* Setting global :exc:`StopAsyncIteration` no longer breaks ``async for``
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loops.
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* Jumping into an ``async for`` loop is now disabled.
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* Jumping out of an ``async for`` loop no longer corrupts the stack.
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|
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@ -1,2 +0,0 @@
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``math.factorial`` no longer accepts arguments that are not int-like.
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Patch by Pablo Galindo.
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Improve consistency of errors raised by ``issubclass()`` when called with a
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non-class and an abstract base class as the first and second arguments,
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respectively. Patch by Josh Bronson.
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|
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@ -1,2 +0,0 @@
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Changed standard error message for non-pickleable and non-copyable types. It
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now says "cannot pickle" instead of "can't pickle" or "cannot serialize".
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@ -1,4 +0,0 @@
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When using the -m switch, sys.path[0] is now explicitly expanded as the
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*starting* working directory, rather than being left as the empty path
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(which allows imports from the current working directory at the time of the
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import)
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|
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@ -1,2 +0,0 @@
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Fix ``ma_version_tag`` in dict implementation is uninitialized when copying
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from key-sharing dict.
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|
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@ -1,2 +0,0 @@
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Improved error messages in 'async with' when ``__aenter__()`` or
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``__aexit__()`` return non-awaitable object.
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|
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@ -1,3 +0,0 @@
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Change dict growth function from ``round_up_to_power_2(used*2+hashtable_size/2)`` to
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``round_up_to_power_2(used*3)``. Previously, dict is shrinked only when ``used == 0``.
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Now dict has more chance to be shrinked.
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|
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@ -1 +0,0 @@
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Fix potential memory leak in ``normalizestring()``.
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|
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@ -1 +0,0 @@
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Add a ``toreadonly()`` method to memoryviews.
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|
|
@ -1,2 +0,0 @@
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The C and Python code and the documentation related to tokens are now generated
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from a single source file :file:`Grammar/Tokens`.
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|
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@ -1 +0,0 @@
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Intern the names for all anonymous code objects. Patch by Zackery Spytz.
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|
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@ -1,2 +0,0 @@
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The list constructor will pre-size and not over-allocate when
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the input lenght is known.
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@ -1 +0,0 @@
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Improved syntax error messages for unbalanced parentheses.
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