bpo-42142: Try to fix timeouts in ttk tests (GH-23474)
Instead of using wait_visibility() which waits event <VisibilityNotify> in dead loop
use update() which should proceed all queued events.
(cherry picked from commit 6cc2c419f6cf5ed336609ba01055e77d7c553e6d)
bpo-42406: Fix whichmodule() with multiprocessing (GH-23403)
* bpo-42406: Fix whichmodule() with multiprocessing
Signed-off-by: Renato L. de F. Cunha <renatoc@br.ibm.com> Co-authored-by: Gregory P. Smith <greg@krypto.org>
(cherry picked from commit 86684319d3dad8e1a7b0559727a48e0bc50afb01)
Co-authored-by: Renato Cunha <renatocunha@acm.org>
bpo-39096: Improve description of 'e', 'f' and 'g' presentation types (GH-23537) (GH-23550)
* Improve description of 'e', 'f' and 'g' presentation types
* Drop the 'E' from Scientific 'E' notation; remove >= 0 qualifications
* Fix false statement that the alternate form is valid for Decimal
* Nitpick: remove the Harvard/Oxford comma
* Add note that the decimal point is also removed if no digits follow it, except in alternate form
(cherry picked from commit c642374b3ef72f6f300616f07aea2a3f9ed83e51)
Co-authored-by: Mark Dickinson <mdickinson@enthought.com> Co-authored-by: Mark Dickinson <mdickinson@enthought.com>
The function accepts now the representation of the default state as
empty sequence (as returned by Style.map()).
The structure of the result is now the same on all platform
and does not depend on the value of wantobjects.
(cherry picked from commit dd844a2916fb3a8f481ec7c732802c13c3375691)
bpo-42361: Use Tcl/Tk 8.6.10 when building the installer on recent macOS (GH-23293)
Building on older versions, and in particular macOS 10.9 still use
Tk 8.6.8 because of build problems on that version of macOS.
(cherry picked from commit 690a5fa3ddc675a434730b057ddb5c33f44fd0b7)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
bpo-41116: Ensure system supplied libraries are found on macOS 11 (GH-23301) (GH-23455)
On macOS system provided libraries are in a shared library cache
and not at their usual location. This PR teaches distutils to search
in the SDK, even if there was no "-sysroot" argument in
the compiler flags.
(cherry picked from commit 404a719b5127602c1a948f8e189ab61cd3f147d8)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
[3.9] bpo-38443: Check that the specified universal architectures work (GH-22910) (GH-23451)
As [[bpo-38443]()]() says the error message from configure when specifying --enable-universalsdk with a set of architectures that is not supported by the compiler is not very helpful. This PR explicitly checks if the compiler works and bails out if it doesn't.
(cherry picked from commit 0f20bd9042c9b7fce20c3b9511cd0820b30094c3)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
bpo-42412: Fix possible leaks and check arguments in PyType_FromModuleAndSpec() (GH-23410)
* There were leaks if Py_tp_bases is used more than once or if some call is
failed before setting tp_bases.
* There was a crash if the bases argument or the Py_tp_bases slot is not a tuple.
* The documentation was not accurate.
(cherry picked from commit 1db76394ea79030aa4ed5349c950f6c6da51450f)
bpo-40550: Fix time-of-check/time-of-action issue in subprocess.Popen.send_signal. (GH-20010)
send_signal() now swallows the exception if the process it thought was still alive winds up not to exist anymore (always a plausible race condition despite the checks).
bpo-40791: Make compare_digest more constant-time. (GH-20444)
* bpo-40791: Make compare_digest more constant-time.
The existing volatile `left`/`right` pointers guarantee that the reads will all occur, but does not guarantee that they will be _used_. So a compiler can still short-circuit the loop, saving e.g. the overhead of doing the xors and especially the overhead of the data dependency between `result` and the reads. That would change performance depending on where the first unequal byte occurs. This change removes that optimization.
bpo-28002: Roundtrip f-strings with ast.unparse better (GH-19612) (GH-23430)
By attempting to avoid backslashes in f-string expressions.
We also now proactively raise errors for some backslashes we can't
avoid while unparsing FormattedValues
Fix a race condition in "make regen-all" when make -jN option is used
to run jobs in parallel. The clinic.py script now only use atomic
write to write files. Moveover, generated files are now left
unchanged if the content does not change, to not change the file
modification time.
The "make regen-all" command runs "make clinic" and "make
regen-importlib" targets:
* "make regen-importlib" builds object files (ex: Modules/_weakref.o)
from source files (ex: Modules/_weakref.c) and clinic files (ex:
Modules/clinic/_weakref.c.h)
* "make clinic" always rewrites all clinic files
(ex: Modules/clinic/_weakref.c.h)
Since there is no dependency between "clinic" and "regen-importlib"
Makefile targets, these two targets can be run in parallel. Moreover,
half of clinic.py file writes are not atomic and so there is a race
condition when "make regen-all" runs jobs in parallel using make -jN
option (which can be passed in MAKEFLAGS environment variable).
Fix clinic.py to make all file writes atomic:
* Add write_file() function to ensure that all file writes are
atomic: write into a temporary file and then use os.replace().
* Moreover, write_file() doesn't recreate or modify the file if the
content does not change to avoid modifying the file modification
file.
* Update test_clinic to verify these assertions with a functional
test.
* Remove Clinic.force attribute which was no longer used, whereas
Clinic.verify remains useful.
Victor Stinner [Tue, 17 Nov 2020 17:58:12 +0000 (18:58 +0100)]
bpo-41686: Always create the SIGINT event on Windows (GH-23344) (GH-23347)
bpo-41686, bpo-41713: On Windows, the SIGINT event,
_PyOS_SigintEvent(), is now created even if Python is configured to
not install signal handlers (PyConfig.install_signal_handlers=0 or
Py_InitializeEx(0)).
Fix the threading.Thread class at fork: do nothing if the thread is
already stopped (ex: fork called at Python exit). Previously, an
error was logged in the child process.
(cherry picked from commit 5909a494cd3ba43143b28bd439773ed85a485dfc)
Co-authored-by: Victor Stinner <vstinner@python.org>
bpo-42153 Fix link to IMAP documents in imaplib.rst (GH-23297)
The University of Washington stopped hosting the IMAP documents. Link to a rescued copy on GitHub.
(cherry picked from commit aa01011003bb855cd52abfd49f2443446590d913)
bpo-42296: On Windows, fix CTRL+C regression (GH-23257)
On Windows, fix a regression in signal handling which prevented to
interrupt a program using CTRL+C. The signal handler can be run in a
thread different than the Python thread, in which case the test
deciding if the thread can handle signals is wrong.
On Windows, _PyEval_SignalReceived() now always sets eval_breaker to
1 since it cannot test _Py_ThreadCanHandleSignals(), and
eval_frame_handle_pending() always calls
_Py_ThreadCanHandleSignals() to recompute eval_breaker.
(cherry picked from commit d96a7a83133250377219227b5cfab4dbdddc5d3a)
Co-authored-by: Victor Stinner <vstinner@python.org>
bpo-42140: Improve asyncio.wait function (GH-22938)
GH- Improve asyncio.wait function
The original code creates the futures set two times.
We can create this set before, avoiding the second creation.
This new behaviour [breaks the aiokafka library](https://github.com/aio-libs/aiokafka/pull/672), because it gives an iterator to that function, so the second iteration become empty.
bpo-41754: Ignore NotADirectoryError in invocation of xdg-settings (GH-23075)
It is not clear why this can happen, but several users have mentioned
getting this exception on macOS.
(cherry picked from commit 23831a7a90956e38b7d70304bb6afe30d37936de)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
Minor wording change in concurrent.futures. (GH-23194)
Fixes a grammar problem by adding a missing "as", and clarifies the wording of the valid ranges for max_workers.
(cherry picked from commit fd6f6fa403789c8877b1099cc6fcc437d2e54634)
Co-authored-by: Don Kirkby <donkirkby@users.noreply.github.com>
Disable peg generator tests when building with PGO (GH-23141)
Otherwise, when running the testsuite, test_peg_generator tries to compile C
code using the optimized flags and fails because it cannot find the profile
data.
(cherry picked from commit 100964e0310d3a2040d0db976f7984d0507b2dbd)
bpo-42103: Improve validation of Plist files. (GH-22882)
* Prevent some possible DoS attacks via providing invalid Plist files
with extremely large number of objects or collection sizes.
* Raise InvalidFileException for too large bytes and string size instead of returning garbage.
* Raise InvalidFileException instead of ValueError for specific invalid datetime (NaN).
* Raise InvalidFileException instead of TypeError for non-hashable dict keys.
* Add more tests for invalid Plist files.
(cherry picked from commit 34637a0ce21e7261b952fbd9d006474cc29b681f)
bpo-42230: Improve asyncio documentation regarding accepting sets vs iterables (GH-23073)
People call wait() and as_completed() with various non-set iterables,
a list should be the most common but there are others as well[1].
Considering typeshed also documents wait()[2] and as_completed()[3]
as accepting arbitrary iterables I think it's a good idea to document
the status quo better.
bpo-40511: Stop unwanted flashing of IDLE calltips (GH-20910)
They were occurring with both repeated 'force-calltip' invocations and by typing parentheses
in expressions, strings, and comments in the argument code.
[3.9] bpo-29566: binhex.binhex now consitently writes MacOS 9 line endings. (GH-23059) (GH-23071)
[[bpo-29566]()]() notes that binhex.binhex uses inconsistent line endings (both Unix and MacOS9 line endings are used). This PR changes this to use the MacOS9 line endings everywhere.
(cherry picked from commit 2165cea548f961b308050f30d1f042a377651d44)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com> Automerge-Triggered-By: GH:ronaldoussoren
[3.9] bpo-42218: Correctly handle errors in left-recursive rules (GH-23065) (GH-23066)
Left-recursive rules need to check for errors explicitly, since
even if the rule returns NULL, the parsing might continue and lead
to long-distance failures.
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