Python 3.9.2 final
Release date: 2021-02-19
Windows
bpo-43155: PyCMethod_New() is now present in python3.lib.
Python 3.9.2 release candidate 1
Release date: 2021-02-16
Security
bpo-42967: Fix web cache poisoning vulnerability by defaulting the query args separator to &, and allowing the user to choose a custom separator.
bpo-42938: Avoid static buffers when computing the repr of ctypes.c_double and ctypes.c_longdouble values.
Core and Builtins
bpo-42819: readline: Explicitly disable bracketed paste in the interactive interpreter, even if it’s set in the inputrc, is enabled by default (eg GNU Readline 8.1), or a user calls readline.read_init_file(). The Python REPL has not implemented bracketed paste support. Also, bracketed mode writes the "\x1b[?2004h" escape sequence into stdout which causes test failures in applications that don’t support it. It can still be explicitly enabled by calling readline.parse_and_bind("set enable-bracketed-paste on"). Patch by Dustin Rodrigues.
bpo-42806: Fix the column offsets for f-strings ast nodes surrounded by parentheses and for nodes that spawn multiple lines. Patch by Pablo Galindo.
bpo-40631: Fix regression where a single parenthesized starred expression was a valid assignment target.
bpo-32381: Fix encoding name when running a .pyc file on Windows: PyRun_SimpleFileExFlags() now uses the correct encoding to decode the filename.
bpo-42536: Several built-in and standard library types now ensure that their internal result tuples are always tracked by the garbage collector:
collections.OrderedDict.items()
dict.items()
enumerate()
functools.reduce()
itertools.combinations()
itertools.combinations_with_replacement()
itertools.permutations()
itertools.product()
itertools.zip_longest()
zip()
Previously, they could have become untracked by a prior garbage collection. Patch by Brandt Bucher.
bpo-42195: The __args__ of the parameterized generics for typing.Callable and collections.abc.Callable are now consistent. The __args__ for collections.abc.Callable are now flattened while typing.Callable’s have not changed. To allow this change, types.GenericAlias can now be subclassed and collections.abc.Callable’s __class_getitem__ will now return a subclass of types.GenericAlias. Tests for typing were also updated to not subclass things like Callable[..., T] as that is not a valid base class. Finally, both types no longer validate their argtypes, in Callable[[argtypes], resulttype] to prepare for PEP 612. Patch by Ken Jin.
Library
bpo-43102: The namedtuple __new__ method had its __builtins__ set to None instead of an actual dictionary. This created problems for introspection tools.
bpo-43108: Fixed a reference leak in the curses module. Patch by Pablo Galindo
bpo-42944: Fix random.Random.sample when counts argument is not None.
bpo-42931: Add randbytes() to random.__all__.
bpo-42780: Fix os.set_inheritable() for O_PATH file descriptors on Linux.
bpo-42851: remove __init_subclass__ support for Enum members
bpo-41748: Fix HTMLParser parsing rules for element attributes containing commas with spaces. Patch by Karl Dubost.
bpo-42759: Fixed equality comparison of tkinter.Variable and tkinter.font.Font. Objects which belong to different Tcl interpreters are now always different, even if they have the same name.
bpo-42756: Configure LMTP Unix-domain socket to use socket global default timeout when a timeout is not explicitly provided.
bpo-23328: Allow / character in username, password fields on _PROXY envars.
bpo-42655: subprocess extra_groups is now correctly passed into setgroups() system call.
bpo-42727: EnumMeta.__prepare__ now accepts **kwds to properly support __init_subclass__
bpo-42681: Fixed range checks for color and pair numbers in curses.
bpo-37961: Fix crash in tracemalloc.Traceback.__repr__() (regressed in Python 3.9).
bpo-42630: tkinter functions and constructors which need a default root window raise now RuntimeError with descriptive message instead of obscure AttributeError or NameError if it is not created yet or cannot be created automatically.
bpo-42644: logging.disable will now validate the types and value of its parameter. It also now accepts strings representing the levels (as does loging.setLevel) instead of only the numerical values.
bpo-36541: Fixed lib2to3.pgen2 to be able to parse PEP-570 positional only argument syntax.
bpo-42517: Enum: private names will raise a DeprecationWarning; in 3.10 they will become normal attributes
bpo-42678: Enum: call __init_subclass__ after members have been added
bpo-42532: Remove unexpected call of __bool__ when passing a spec_arg argument to a Mock.
bpo-42388: Fix subprocess.check_output(…, input=None) behavior when text=True to be consistent with that of the documentation and universal_newlines=True.
bpo-34463: Fixed discrepancy between traceback and the interpreter in formatting of SyntaxError with lineno not set (traceback was changed to match interpreter).
bpo-42375: subprocess module update for DragonFlyBSD support.
bpo-42384: Make pdb populate sys.path[0] exactly the same as regular python execution.
bpo-42383: Fix pdb: previously pdb would fail to restart the debugging target if it was specified using a relative path and the current directory changed.
bpo-42318: Fixed support of non-BMP characters in tkinter on macOS.
bpo-42163: Restore compatibility for uname_result around deepcopy and _replace.
bpo-39825: Windows: Change sysconfig.get_config_var('EXT_SUFFIX') to the expected full platform_tag.extension format. Previously it was hard-coded to .pyd, now it is compatible with distutils.sysconfig and will result in something like .cp38-win_amd64.pyd. This brings windows into conformance with the other platforms.
bpo-42059: typing.TypedDict types created using the alternative call-style syntax now correctly respect the total keyword argument when setting their __required_keys__ and __optional_keys__ class attributes.
bpo-39101: Fixed tests using IsolatedAsyncioTestCase from hanging on BaseExceptions.
bpo-42005: Fix CLI of cProfile and profile to catch BrokenPipeError.
bpo-41907: fix format() behavior for IntFlag
bpo-41889: Enum: fix regression involving inheriting a multiply-inherited enum
bpo-41891: Ensure asyncio.wait_for waits for task completion
bpo-41604: Don’t decrement the reference count of the previous user_ptr when set_panel_userptr fails.
bpo-40219: Lowered tkinter.ttk.LabeledScale dummy widget to prevent hiding part of the content label.
bpo-40084: Fix Enum.__dir__: dir(Enum.member) now includes attributes as well as methods.
bpo-39068: Fix initialization race condition in a85encode() and b85encode() in base64. Patch by Brandon Stansbury.
bpo-33289: Correct call to tkinter.colorchooser to return RGB triplet of ints instead of floats. Patch by Cheryl Sabella.
Documentation
bpo-40304: Fix doc for type(name, bases, dict). Patch by Boris Verkhovskiy and Éric Araujo.
bpo-42811: Updated importlib.utils.resolve_name() doc to use __spec__.parent instead of __package__. (Thanks Yair Frid.)
bpo-17140: Add documentation for the multiprocessing.pool.ThreadPool class.
Tests
bpo-42794: Update test_nntplib to use offical group name of news.aioe.org for testing. Patch by Dong-hee Na.
bpo-40810: In sqlite3, fix CheckTraceCallbackContent for SQLite pre 3.7.15.
Build
bpo-43174: Windows build now uses /utf-8 compiler option.
bpo-42692: Fix __builtin_available check on older compilers. Patch by Joshua Root.
bpo-42604: Now all platforms use a value for the “EXT_SUFFIX” build variable derived from SOABI (for instance in freeBSD, “EXT_SUFFIX” is now “.cpython-310d.so” instead of “.so”). Previosuly only Linux, Mac and VxWorks were using a value for “EXT_SUFFIX” that included “SOABI”.
bpo-42598: Fix implicit function declarations in configure which could have resulted in incorrect configuration checks. Patch contributed by Joshua Root.
bpo-29076: Add fish shell support to macOS installer.
Windows
bpo-41837: Updated Windows installer to include OpenSSL 1.1.1i
bpo-42584: Upgrade Windows installer to use SQLite 3.34.0.
macOS
bpo-42504: Ensure that the value of sysconfig.get_config_var(‘MACOSX_DEPLOYMENT_TARGET’) is always a string, even in when the value is parsable as an integer.
bpo-42361: Update macOS installer build to use Tcl/Tk 8.6.11 (rc2, expected to be final release).
bpo-41837: Update macOS installer build to use OpenSSL 1.1.1i.
bpo-42584: Update macOS installer to use SQLite 3.34.0.
IDLE
bpo-43008: Make IDLE invoke sys.excepthook() in normal, 2-process mode. Patch by Ken Hilton.
bpo-33065: Fix problem debugging user classes with __repr__ method.
bpo-23544: Disable Debug=>Stack Viewer when user code is running or Debugger is active, to prevent hang or crash. Patch by Zackery Spytz.
bpo-32631: Finish zzdummy example extension module: make menu entries work; add docstrings and tests with 100% coverage.
Tools/Demos
bpo-42726: Fixed Python 3 compatibility issue with gdb/libpython.py handling of attribute dictionaries.
bpo-42613: Fix freeze.py tool to use the prope config and library directories. Patch by Victor Stinner.
C API
bpo-43030: Fixed a compiler warning in Py_UNICODE_ISSPACE() on platforms with signed wchar_t.
bpo-42591: Export the Py_FrozenMain() function: fix a Python 3.9.0 regression. Python 3.9 uses -fvisibility=hidden and the function was not exported explicitly and so not exported.
bpo-40052: Fix an alignment build warning/error in function PyVectorcall_Function(). Patch by Andreas Schneider, Antoine Pitrou and Petr Viktorin.
Python 3.8.8
Security
bpo-42967: Fix web cache poisoning vulnerability by defaulting the query args separator to &, and allowing the user to choose a custom separator.
bpo-42938: Avoid static buffers when computing the repr of ctypes.c_double and ctypes.c_longdouble values.
Core and Builtins
bpo-42819: readline: Explicitly disable bracketed paste in the interactive interpreter, even if it’s set in the inputrc, is enabled by default (eg GNU Readline 8.1), or a user calls readline.read_init_file(). The Python REPL has not implemented bracketed paste support. Also, bracketed mode writes the "\x1b[?2004h" escape sequence into stdout which causes test failures in applications that don’t support it. It can still be explicitly enabled by calling readline.parse_and_bind("set enable-bracketed-paste on"). Patch by Dustin Rodrigues.
Library
bpo-43108: Fixed a reference leak in the curses module. Patch by Pablo Galindo
bpo-42780: Fix os.set_inheritable() for O_PATH file descriptors on Linux.
bpo-41748: Fix HTMLParser parsing rules for element attributes containing commas with spaces. Patch by Karl Dubost.
bpo-42759: Fixed equality comparison of tkinter.Variable and tkinter.font.Font. Objects which belong to different Tcl interpreters are now always different, even if they have the same name.
bpo-23328: Allow / character in username, password fields on _PROXY envars.
bpo-42681: Fixed range checks for color and pair numbers in curses.
bpo-42531: importlib.resources.path() now works for packages missing the optional __file__ attribute (more specifically, packages whose __spec__.origin is None).
bpo-42388: Fix subprocess.check_output(…, input=None) behavior when text=True to be consistent with that of the documentation and universal_newlines=True.
bpo-42384: Make pdb populate sys.path[0] exactly the same as regular python execution.
bpo-42383: Fix pdb: previously pdb would fail to restart the debugging target if it was specified using a relative path and the current directory changed.
bpo-42318: Fixed support of non-BMP characters in tkinter on macOS.
bpo-42005: Fix CLI of cProfile and profile to catch BrokenPipeError.
bpo-41604: Don’t decrement the reference count of the previous user_ptr when set_panel_userptr fails.
bpo-26407: Unexpected errors in calling the __iter__ method are no longer masked by TypeError in csv.reader(), csv.writer.writerow() and csv.writer.writerows().
bpo-39068: Fix initialization race condition in a85encode() and b85encode() in base64. Patch by Brandon Stansbury.
bpo-36589: The curses.update_lines_cols() function now returns None instead of 1 on success.
bpo-33289: Correct call to tkinter.colorchooser to return RGB triplet of ints instead of floats. Patch by Cheryl Sabella.
Documentation
bpo-40304: Fix doc for type(name, bases, dict). Patch by Boris Verkhovskiy and Éric Araujo.
bpo-42811: Updated importlib.utils.resolve_name() doc to use __spec__.parent instead of __package__. (Thanks Yair Frid.)
Tests
bpo-42794: Update test_nntplib to use offical group name of news.aioe.org for testing. Patch by Dong-hee Na.
bpo-40810: In sqlite3, fix CheckTraceCallbackContent for SQLite pre 3.7.15.
Build
bpo-29076: Add fish shell support to macOS installer.
Windows
bpo-41837: Updated Windows installer to include OpenSSL 1.1.1i
bpo-42584: Upgrade Windows installer to use SQLite 3.34.0.
macOS
bpo-41837: Update macOS installer build to use OpenSSL 1.1.1i.
bpo-42584: Update macOS installer to use SQLite 3.34.0.
IDLE
bpo-43008: Make IDLE invoke sys.excepthook() in normal, 2-process mode. Patch by Ken Hilton.
bpo-33065: Fix problem debugging user classes with __repr__ method.
bpo-42508: Keep IDLE running on macOS. Remove obsolete workaround that prevented running files with shortcuts when using new universal2 installers built on macOS 11.
bpo-23544: Disable Debug=>Stack Viewer when user code is running or Debugger is active, to prevent hang or crash. Patch by Zackery Spytz.
bpo-32631: Finish zzdummy example extension module: make menu entries work; add docstrings and tests with 100% coverage.
Tools/Demos
bpo-42726: Fixed Python 3 compatibility issue with gdb/libpython.py handling of attribute dictionaries.
C API
bpo-43030: Fixed a compiler warning in Py_UNICODE_ISSPACE() on platforms with signed wchar_t.
bpo-40052: Fix an alignment build warning/error in function PyVectorcall_Function(). Patch by Andreas Schneider, Antoine Pitrou and Petr Viktorin.
* All pkgsrc patches are included by upstream.
Changelog:
OpenBSD/luna88k can now run in the emulator (with root-on-nfs), and there
is now tap device support for networking contributed by Jason Thorpe.
This touches all compiled std library files after installation, to avoid
extra recompilations when a dependent package (most likely a newer Go
release) is being built.
Patch from mlelstv@ in PR pkg/55900.
* Enable libzhuyin.
Changelog:
version 2.6.0
* bug fixes
version 2.4.92
* update pinyin data
* bug fixes
version 2.4.91
* improve full pinyin auto correction
* bug fixes
version 2.3.0
* update pinyin data
version 2.2.2
* minor fixes
version 2.2.1
* fixes predicted candidates
version 2.2.0
* bug fixes
version 2.1.91
* fixes zhuyin parsers;
version 2.1.0
* support sort option in pinyin_guess_candidates function;
version 2.0.92
* reduce memory consumption after imported user dictionary;
version 2.0.91
* merge libzhuyin code;
version 2.0.0
* the first official release of 2.0.x;
* fixes autoconf;
version 1.9.92
* fixes crash in double pinyin;
version 1.9.91
* multiple sentence candidates;
version 1.7.0
* fixes build on FreeBSD;
* update cmake files;
version 1.6.91
* change license to GPLv3+;
* import open-gram dictionary and remove pinyin tones;
* add some checks when load data from file;
version 1.6.0
* bug fixes.
version 1.5.91
* change pinyin/phrase tables to use dbm.
* enhance pinyin key representation and pinyin parsers.
version 1.2.0
* bug fixes.
version 1.1.91
* support Kyoto Cabinet as alternative to Berkeley DB.
* improve multiple dictionaries support feature.
version 1.1.0
* support to export user phrases.
2.32
This adapts the zref-pagelayout module to the new LateX hook management.
2.31
* added pagevalue property to savepos in abspos module
* to correct a problem with references when hyperref is loaded,
zref-counter uses from LaTeX2e <2020-10-01> pre-release-6 on
the new command \@currentcounter and no longer patches \refstepcounter.
72:
Notable changes are
\declaretheorem:
- Extended command syntax to be \declaretheorem[<option list>]{<thmname
list>}[<option list>].
- Made key usage "number=unless unique" compatible with and aware of key
"numberwithin".
\listoftheorems:
- Provided new option "swapnumber" to typeset theorem number after title.
- Made compatible with ams classes.
- Added documentation of its known keys
69:
- Improved compatibility with cleveref (for its extended syntax of \label)
- Refined user manual
- Updated license and maintenance status
This is the first update from its new maintainer.
4.42
- due to several problems with the color algorithm introduced with
version 4.32, essentially reversion to the proven pre 4.32 method.
* support of luacolor persists (since 4.32)
* color stacks (by pdfcol) are not mandatory any more,
but are optional now with 'use color stack'. Note that effects
of whatsits on the vertical space have to be expected.
4.41
- bug fix: color bleeding for xelatex and breakable boxes (since 4.32)
4.40
- bug fix: 'IfBooleanT', 'IfBooleanF'
- bug fix: 'widget' set 'toprule at break' and needed the breakable library
- (bug) fix: style 'marker' set 'breakable' and needed the breakable library
- 'capture=hbox' applies '\@parboxrestore' now to allow e.g. hbox style
listings inside indented environments like itemize
- support 'hbox' for 'minted' listings
- New default vertical space options
'before skip balanced', 'after skip balanced', 'beforeafter skip
balanced'
NOTE: These options replace the current default options
'parskip', 'noparskip', 'autoparskip'
WARNING: Old documents may need adapted manual page breaks where used.
Otherwise: Use \tcbsetforeverylayer{autoparskip}
to restore the old behavior!
- 'before skip' and 'before skip balanced' do not insert glue now, if
the tcolorbox is the first element in a minipage (or sourrounding tcolorbox)
4.32
- documentation typo corrections and enhancements
- bug fix: 'index format=doc' caused redefinition of '\_'
among other errors.
- bug fix: 'valign=scale*' was erroneous.
- enhancement: color stack support for breakable boxes (pdflatex and
lualatex) to let colors survive a break to the next partial box.
- library 'xparse':
* new options: 'IfNoValueT', 'IfNoValueF', 'IfValueT', 'IfValueF',
'IfBooleanT', 'IfBooleanF'
4.31
- bug fix: \tcbincludepdf did not work for lualatex
- bug fix: Several tests had a missing \relax
- bug fix: Breakable tcolorbox may overlap with following the
text
- bug fix: 'space to' did not result in a stable value
- Internal change: all 'code 2 args' replaced by 'code n args={2}'
- documentation typo corrections
- library 'documentation':
* indention of <environment content> changed to \ttfamily
2.2
Bugfix release: The previous version, v2.1, introduced an
incompatibility between the subfiles package and the tabular
environment, which has been removed in this version.
2.1
subfiles is a class and a package for multi-file projects in LaTeX.
This release fixes a bug which affected packages that use the new
hooks at the begin and end of documents, in particular packages
related to CJK.
2.0
The version makes the subfiles package compatible with the upcoming
October-2020-release of LaTeX and removes some bugs (see the issue tracker
on Github or the accompanying documentation for details). Another major
change is that the preamble of subfiles and text after the end of a
document are skipped, as one would expect. The old behaviour of subfiles
is still available via a package option.
