bpo-43913: Fix bugs in cleaning up classes and modules in unittest. (GH-28006)
* Functions registered with addModuleCleanup() were not called unless
the user defines tearDownModule() in their test module.
* Functions registered with addClassCleanup() were not called if
tearDownClass is set to None.
* Buffering in TestResult did not work with functions registered
with addClassCleanup() and addModuleCleanup().
* Errors in functions registered with addClassCleanup() and
addModuleCleanup() were not handled correctly in buffered and
debug modes.
* Errors in setUpModule() and functions registered with
addModuleCleanup() were reported in wrong order.
* And several lesser bugs.
(cherry picked from commit 08d9e597c8ef5a2b26375ac954fdf224f5d82c3c)
bpo-44689: ctypes.util.find_library() now finds macOS 11+ system libraries when built on older macOS systems (GH-27251)
Previously, when built on older macOS systems, `find_library` was not able to find macOS system libraries when running on Big Sur due to changes in how system libraries are stored.
(cherry picked from commit 71853a73024a98aa38a3c0444fe364dbd9709134)
bpo-44394: Update libexpat copy to 2.4.1 (GH-26945)
Update the vendored copy of libexpat to 2.4.1 (from 2.2.8) to get the
fix for the CVE-2013-0340 "Billion Laughs" vulnerability. This copy
is most used on Windows and macOS.
bpo-25130: Make unit-test about restricting the maximum number of nested blocks cpython-only (GH-28002) (GH-28016)
PyPy and potentially other implementations have different or no
contraints on the number of blocks that can be statically nested. move
the test that checks for this behaviour into a unit test and mark it as
CPython-only.
(cherry picked from commit eb263f9a356f5c5f21b8d5ce20bac92f31c40cad)
Co-authored-by: Carl Friedrich Bolz-Tereick <cfbolz@gmx.de>
bpo-44962: Fix a race in WeakKeyDict, WeakValueDict and WeakSet when two threads attempt to commit the last pending removal (GH-27921)
Fixes:
Traceback (most recent call last):
File "/home/graingert/projects/asyncio-demo/demo.py", line 36, in <module>
sys.exit(main())
File "/home/graingert/projects/asyncio-demo/demo.py", line 30, in main
test_all_tasks_threading()
File "/home/graingert/projects/asyncio-demo/demo.py", line 24, in test_all_tasks_threading
results.append(f.result())
File "/usr/lib/python3.10/concurrent/futures/_base.py", line 438, in result
return self.__get_result()
File "/usr/lib/python3.10/concurrent/futures/_base.py", line 390, in __get_result
raise self._exception
File "/usr/lib/python3.10/concurrent/futures/thread.py", line 52, in run
result = self.fn(*self.args, **self.kwargs)
File "/usr/lib/python3.10/asyncio/runners.py", line 47, in run
_cancel_all_tasks(loop)
File "/usr/lib/python3.10/asyncio/runners.py", line 56, in _cancel_all_tasks
to_cancel = tasks.all_tasks(loop)
File "/usr/lib/python3.10/asyncio/tasks.py", line 53, in all_tasks
tasks = list(_all_tasks)
File "/usr/lib/python3.10/_weakrefset.py", line 60, in __iter__
with _IterationGuard(self):
File "/usr/lib/python3.10/_weakrefset.py", line 33, in __exit__
w._commit_removals()
File "/usr/lib/python3.10/_weakrefset.py", line 57, in _commit_removals
discard(l.pop())
IndexError: pop from empty list
Also fixes:
Exception ignored in: weakref callback <function WeakKeyDictionary.__init__.<locals>.remove at 0x00007fe82245d2e0>
Traceback (most recent call last):
File "/usr/lib/pypy3/lib-python/3/weakref.py", line 390, in remove
del self.data[k]
KeyError: <weakref at 0x00007fe76e8d8180; dead>
Exception ignored in: weakref callback <function WeakKeyDictionary.__init__.<locals>.remove at 0x00007fe82245d2e0>
Traceback (most recent call last):
File "/usr/lib/pypy3/lib-python/3/weakref.py", line 390, in remove
del self.data[k]
KeyError: <weakref at 0x00007fe76e8d81a0; dead>
Exception ignored in: weakref callback <function WeakKeyDictionary.__init__.<locals>.remove at 0x00007fe82245d2e0>
Traceback (most recent call last):
File "/usr/lib/pypy3/lib-python/3/weakref.py", line 390, in remove
del self.data[k]
KeyError: <weakref at 0x000056548f1e24a0; dead>
See: https://github.com/agronholm/anyio/issues/362GH-issuecomment-904424310
See also: https://bugs.python.org/issue29519
bpo-45001: Make email date parsing more robust against malformed input (GH-27946)
Various date parsing utilities in the email module, such as
email.utils.parsedate(), are supposed to gracefully handle invalid
input, typically by raising an appropriate exception or by returning
None.
The internal email._parseaddr._parsedate_tz() helper used by some of
these date parsing routines tries to be robust against malformed input,
but unfortunately it can still crash ungracefully when a non-empty but
whitespace-only input is passed. This manifests as an unexpected
IndexError.
In practice, this can happen when parsing an email with only a newline
inside a ‘Date:’ header, which unfortunately happens occasionally in the
real world.
Here's a minimal example:
$ python
Python 3.9.6 (default, Jun 30 2021, 10:22:16)
[GCC 11.1.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import email.utils
>>> email.utils.parsedate('foo')
>>> email.utils.parsedate(' ')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.9/email/_parseaddr.py", line 176, in parsedate
t = parsedate_tz(data)
File "/usr/lib/python3.9/email/_parseaddr.py", line 50, in parsedate_tz
res = _parsedate_tz(data)
File "/usr/lib/python3.9/email/_parseaddr.py", line 72, in _parsedate_tz
if data[0].endswith(',') or data[0].lower() in _daynames:
IndexError: list index out of range
The fix is rather straight-forward: guard against empty lists, after
splitting on whitespace, but before accessing the first element.
(cherry picked from commit 989f6a3800f06b2bd31cfef7c3269a443ad94fac)
bpo-39452: Rewrite and expand __main__.rst (GH-26883)
Broadened scope of the document to explicitly discuss and differentiate between ``__main__.py`` in packages versus the ``__name__ == '__main__'`` expression (and the idioms that surround it), as well as ``import __main__``.
Łukasz Langa [Sun, 22 Aug 2021 19:04:57 +0000 (21:04 +0200)]
[3.10] bpo-42560: rework external references in Tkinter docs (GH-27838) (GH-27893)
- reorganized from two sections (tkinter vs. tcl/tk) into three (tkinter, tcl/tk, and books)
- main (recommended) tkinter docs have one tutorial (tkdocs) and one reference (shipman), added better descriptions
- dropped link to Tkinter page on wiki (suggestion by E. Paine; outdated, most material already linked to from python.org)
- replaced Tcl/Tk recent man pages and core dev home with single link to main Tcl/Tk page (which holds both of these)
- updated Modern Tkinter link to book page on TkDocs site (was Amazon link to old version), dropped description
- replaced Grayson book by Moore book (newer, covers ttk)
- changed Ousterhout ref to second edition, covers ttk
- dropped link to Welch book (old).
(cherry picked from commit d1049d1d6b43296d4db1aa8668aa4ca807bf7adb)
Co-authored-by: Mark Roseman <mark@markroseman.com>
bpo-42560: reorganize Tkinter docs modules section for clarity (GH-27840)
- move description of internal modules (_tkinter and tkinter.constants) from section intro to list of additional modules at end of section, as not most important info
- added missing ttk and tix here
- emphasized up front that most apps will need tkinter and ttk
(cherry picked from commit d5dbe8bca792350f4997c027535e0ca498abd1bb)
Co-authored-by: Mark Roseman <mark@markroseman.com>
bpo-44955: Always call stopTestRun() for implicitly created TestResult objects (GH-27831)
Method stopTestRun() is now always called in pair with method startTestRun()
for TestResult objects implicitly created in TestCase.run().
Previously it was not called for test methods and classes decorated with
a skipping decorator.
(cherry picked from commit a9640d75531d6cbbfd254b65435f238c26bf5cd9)
bpo-44940: Clarify the documentation of re.findall() (GH-27849)
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com> Co-authored-by: Vedran Čačić <vedgar+github@gmail.com>
(cherry picked from commit 64f9e7b19dc1603fcbd07c17c9860085b9d21465)
bpo-44968: Fix test_subprocess_wait_no_same_group in test_asyncio (GH-27870)
The code of the test was never executed because the test function
was unintentionally converted to a generator function.
(cherry picked from commit 585390fdd8661b4bc08bdfc27551292da9b4b9b8)
Fix reST markup in dataclasses.rst (GH-27843) (GH-27845)
The signature of field() had an extraneous colon at the end, causing it
to appear all bold and without the module name.
(cherry picked from commit d26dbba9297adb59bc49a6583c647804ef56fc58)
bpo-44895: Temporarily add an extra gc.collect() call (GH-27746)
This is part of an investigation of a non-deterministic reference leak. While we're looking for the root cause, this is included temporarily so that CI doesn't fail on this particular issue. This enables it to find other regressions in the meantime, which would otherwise be shadowed by our known issue.
(cherry picked from commit 7bf28cbb4bf37fa6bdfc2d3f8a3939066b3f8f22)
On non-Linux POSIX platforms, like FreeBSD or macOS,
the FD used to read a forked PTY may signal its exit not
by raising an error but by sending empty data to the read
syscall. This case wasn't handled, leading to hanging
`pty.spawn` calls.
projects / thirdparty / Python / cpython.git / log
