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Diffstat (limited to 'Misc/NEWS.d/3.10.0b3.rst')
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1 files changed, 342 insertions, 0 deletions
diff --git a/Misc/NEWS.d/3.10.0b3.rst b/Misc/NEWS.d/3.10.0b3.rst new file mode 100644 index 0000000..ebbc000 --- /dev/null +++ b/Misc/NEWS.d/3.10.0b3.rst @@ -0,0 +1,342 @@ +.. bpo: 44409 +.. date: 2021-06-13-23-12-18 +.. nonce: eW4LS- +.. release date: 2021-06-17 +.. section: Core and Builtins + +Fix error location information for tokenizer errors raised on initialization +of the tokenizer. Patch by Pablo Galindo. + +.. + +.. bpo: 44396 +.. date: 2021-06-11-18-17-42 +.. nonce: Z9EKim +.. section: Core and Builtins + +Fix a possible crash in the tokenizer when raising syntax errors for +unclosed strings. Patch by Pablo Galindo. + +.. + +.. bpo: 44349 +.. date: 2021-06-08-22-49-06 +.. nonce: xgEgeA +.. section: Core and Builtins + +Fix an edge case when displaying text from files with encoding in syntax +errors. Patch by Pablo Galindo. + +.. + +.. bpo: 44335 +.. date: 2021-06-08-01-13-47 +.. nonce: GQTTkl +.. section: Core and Builtins + +Fix a regression when identifying incorrect characters in syntax errors. +Patch by Pablo Galindo + +.. + +.. bpo: 44304 +.. date: 2021-06-05-02-34-57 +.. nonce: _MAoPc +.. section: Core and Builtins + +Fix a crash in the :mod:`sqlite3` module that happened when the garbage +collector clears :class:`sqlite.Statement` objects. Patch by Pablo Galindo + +.. + +.. bpo: 44305 +.. date: 2021-06-03-22-51-50 +.. nonce: 66dVDG +.. section: Core and Builtins + +Improve error message for ``try`` blocks without ``except`` or ``finally`` +blocks. Patch by Pablo Galindo. + +.. + +.. bpo: 43833 +.. date: 2021-04-18-18-07-33 +.. nonce: oChkCi +.. section: Core and Builtins + +Emit a deprecation warning if the numeric literal is immediately followed by +one of keywords: and, else, for, if, in, is, or. Raise a syntax error with +more informative message if it is immediately followed by other keyword or +identifier. + +.. + +.. bpo: 11105 +.. date: 2020-06-02-13-21-14 +.. nonce: wceryW +.. section: Core and Builtins + +When compiling :class:`ast.AST` objects with recursive references through +:func:`compile`, the interpreter doesn't crash anymore instead it raises a +:exc:`RecursionError`. + +.. + +.. bpo: 42972 +.. date: 2021-06-15-13-51-25 +.. nonce: UnyYo1 +.. section: Library + +The _thread.RLock type now fully implement the GC protocol: add a traverse +function and the :const:`Py_TPFLAGS_HAVE_GC` flag. Patch by Victor Stinner. + +.. + +.. bpo: 44422 +.. date: 2021-06-14-23-28-17 +.. nonce: BlWOgv +.. section: Library + +The :func:`threading.enumerate` function now uses a reentrant lock to +prevent a hang on reentrant call. Patch by Victor Stinner. + +.. + +.. bpo: 44389 +.. date: 2021-06-12-22-58-20 +.. nonce: WTRnoC +.. section: Library + +Fix deprecation of :data:`ssl.OP_NO_TLSv1_3` + +.. + +.. bpo: 44362 +.. date: 2021-06-10-20-07-32 +.. nonce: oVOMfd +.. section: Library + +Improve :mod:`ssl` module's deprecation messages, error reporting, and +documentation for deprecations. + +.. + +.. bpo: 44342 +.. date: 2021-06-10-15-06-47 +.. nonce: qqkGlj +.. section: Library + +[Enum] Change pickling from by-value to by-name. + +.. + +.. bpo: 44356 +.. date: 2021-06-10-08-35-38 +.. nonce: 6oDFhO +.. section: Library + +[Enum] Allow multiple data-type mixins if they are all the same. + +.. + +.. bpo: 44351 +.. date: 2021-06-10-07-26-12 +.. nonce: rvyf2v +.. section: Library + +Restore back :func:`parse_makefile` in :mod:`distutils.sysconfig` because it +behaves differently than the similar implementation in :mod:`sysconfig`. + +.. + +.. bpo: 44242 +.. date: 2021-06-07-10-26-14 +.. nonce: MKeMCQ +.. section: Library + +Remove missing flag check from Enum creation and move into a ``verify`` +decorator. + +.. + +.. bpo: 44246 +.. date: 2021-05-31-11-34-56 +.. nonce: yHAkF0 +.. section: Library + +In ``importlib.metadata``, restore compatibility in the result from +``Distribution.entry_points`` (``EntryPoints``) to honor expectations in +older implementations and issuing deprecation warnings for these cases: A. +``EntryPoints`` objects are once again mutable, allowing for ``sort()`` +and other list-based mutation operations. Avoid deprecation warnings by +casting to a mutable sequence (e.g. ``list(dist.entry_points).sort()``). +B. ``EntryPoints`` results once again allow for access by index. To avoid +deprecation warnings, cast the result to a Sequence first (e.g. +``tuple(dist.entry_points)[0]``). + +.. + +.. bpo: 44246 +.. date: 2021-05-31-11-28-03 +.. nonce: nhmt-v +.. section: Library + +In importlib.metadata.entry_points, de-duplication of distributions no +longer requires loading the full metadata for PathDistribution objects, +improving entry point loading performance by ~10x. + +.. + +.. bpo: 43853 +.. date: 2021-04-15-12-02-17 +.. nonce: XXCVAp +.. section: Library + +Improve :mod:`sqlite3` error handling: ``sqlite3_value_text()`` errors that +set ``SQLITE_NOMEM`` now raise :exc:`MemoryError`. Patch by Erlend E. +Aasland. + +.. + +.. bpo: 43318 +.. date: 2021-02-25-08-32-06 +.. nonce: bZJw6V +.. section: Library + +Fix a bug where :mod:`pdb` does not always echo cleared breakpoints. + +.. + +.. bpo: 37022 +.. date: 2020-01-25-12-58-20 +.. nonce: FUZI25 +.. section: Library + +:mod:`pdb` now displays exceptions from ``repr()`` with its ``p`` and ``pp`` +commands. + +.. + +.. bpo: 44392 +.. date: 2021-06-16-18-09-49 +.. nonce: 6RF1Sc +.. section: Documentation + +Added a new section in the C API documentation for types used in type +hinting. Documented ``Py_GenericAlias`` and ``Py_GenericAliasType``. + +.. + +.. bpo: 38291 +.. date: 2021-06-14-09-20-37 +.. nonce: VMYa_Q +.. section: Documentation + +Mark ``typing.io`` and ``typing.re`` as deprecated since Python 3.8 in the +documentation. They were never properly supported by type checkers. + +.. + +.. bpo: 44322 +.. date: 2021-06-06-14-12-00 +.. nonce: K0PHfE +.. section: Documentation + +Document that SyntaxError args have a details tuple and that details are +adjusted for errors in f-string field replacement expressions. + +.. + +.. bpo: 44363 +.. date: 2021-06-10-11-19-43 +.. nonce: -K9jD0 +.. section: Tests + +Account for address sanitizer in test_capi. test_capi now passes when run +GCC address sanitizer. + +.. + +.. bpo: 43921 +.. date: 2021-06-03-03-29-34 +.. nonce: nwH1FS +.. section: Tests + +Fix test_ssl.test_wrong_cert_tls13(): use ``suppress_ragged_eofs=False``, +since ``read()`` can raise :exc:`ssl.SSLEOFError` on Windows. Patch by +Victor Stinner. + +.. + +.. bpo: 43921 +.. date: 2021-06-02-17-41-42 +.. nonce: xP7yZ4 +.. section: Tests + +Fix test_pha_required_nocert() of test_ssl: catch two more EOF cases (when +the ``recv()`` method returns an empty string). Patch by Victor Stinner. + +.. + +.. bpo: 44381 +.. date: 2021-06-10-18-08-44 +.. nonce: Xpc1iX +.. section: Build + +The Windows build now accepts :envvar:`EnableControlFlowGuard` set to +``guard`` to enable CFG. + +.. + +.. bpo: 40128 +.. date: 2021-06-11-17-43-39 +.. nonce: 7vDN3U +.. section: IDLE + +Mostly fix completions on macOS when not using tcl/tk 8.6.11 (as with 3.9). +The added update_idletask call should be harmless and possibly helpful +otherwise. + +.. + +.. bpo: 33962 +.. date: 2021-06-10-00-50-02 +.. nonce: ikAUNg +.. section: IDLE + +Move the indent space setting from the Font tab to the new Windows tab. +Patch by Mark Roseman and Terry Jan Reedy. + +.. + +.. bpo: 40468 +.. date: 2021-06-08-03-04-51 +.. nonce: tUCGUb +.. section: IDLE + +Split the settings dialog General tab into Windows and Shell/ED tabs. Move +help sources, which extend the Help menu, to the Extensions tab. Make space +for new options and shorten the dialog. The latter makes the dialog better +fit small screens. + +.. + +.. bpo: 43795 +.. date: 2021-06-15-16-28-18 +.. nonce: fy0AXK +.. section: C API + +The list in :ref:`stable-abi-list` now shows the public name +:c:struct:`PyFrameObject` rather than ``_frame``. The non-existing entry +``_node`` no longer appears in the list. + +.. + +.. bpo: 44378 +.. date: 2021-06-10-15-22-31 +.. nonce: jGYakF +.. section: C API + +:c:func:`Py_IS_TYPE` no longer uses :c:func:`Py_TYPE` to avoid a compiler +warning: no longer cast ``const PyObject*`` to ``PyObject*``. Patch by +Victor Stinner. |