bpo-45192: Fix a bug that infers the type of an os.PathLike[bytes] object as str (GH-28323) (GH-29112)
An object implementing the os.PathLike protocol can represent a file
system path as a str or bytes object.
Therefore, _infer_return_type function should infer os.PathLike[str]
object as str type and os.PathLike[bytes] object as bytes type.
(cherry picked from commit 6270d3eeaf17b50abc4f8f4d97790d66179638e4)
Co-authored-by: Kyungmin Lee <rekyungmin@gmail.com>
* The parser was not correctly computing the offset and the string
source for E_LINECONT errors due to the incorrect usage of strtok().
* The parser was not correctly unwinding the call stack when a tokenizer
exception happened in rules involving optionals ('?', [...]) as we
always make them return valid results by using the comma operator. We
need to check first if we don't have an error before continuing..
(cherry picked from commit a106343f632a99c8ebb0136fa140cf189b4a6a57)
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
NOTE: unlike the cherry-picked original, this commit points at a crazy location
due to a bug in the tokenizer that required a big refactor in 3.10 to fix.
We are leaving as-is for 3.9.
bpo-45436: Fix tkinter tests with Tcl/Tk 8.6.11+ (GH-29077) (GH-29081)
Since v8.6.11, a few configuration options seem to accept an empty value
where they did not previously; particularly the `type` of a `Menu`
widget, and the `compound` of any ttk widget with a label. Providing an
explicit expected error message to `checkEnumParam` bypasses the check
of an empty value, which no longer raises `TclError`.
(cherry picked from commit 4fe454c6f54b0948af67b53af6c2f35af6377e69)
* Generate test classes at import time. It allows to filter them when
run with unittest. E.g: "./python -m unittest test.test_dbm.TestCase_gnu -v".
* Create a database class in a new directory which will be removed after
test. It guarantees that all created files and directories be removed
and will not conflict with other dbm tests.
* Restore dbm._defaultmod after tests. Previously it was set to the last
dbm module (dbm.dumb) which affected other tests.
* Enable the whichdb test for dbm.dumb.
* Move test_keys to the correct test class. It does not test whichdb().
* Remove some outdated code and comments..
(cherry picked from commit 975b94b9de969777218e96a9950c1dab2dab65a0)
[3.9]bpo-45463: Clarify that global statements allows multiple names (GH-28851) (GH-28990)
The global statement allows specifying a list of identifiers
(https://docs.python.org/3/reference/simple_stmts.htmlGH-the-global-statement).
The "Execution model" chapter described the global statement as if it
only allowed one single name. Pluralize "name" in the appropriate places.
(cherry picked from commit 4ecd119b007cb766b8bede2dc78b70d29cd932dd)
Serhiy Storchaka [Thu, 14 Oct 2021 17:03:29 +0000 (20:03 +0300)]
[3.9] bpo-45461: Fix IncrementalDecoder and StreamReader in the "unicode-escape" codec (GH-28939) (GH-28945)
They support now splitting escape sequences between input chunks.
Add the third parameter "final" in codecs.unicode_escape_decode().
It is True by default to match the former behavior.
(cherry picked from commit c96d1546b11b4c282a7e21737cb1f5d16349656d)
bpo-45386: Handle strftime's ValueError graciously in xmlrpc.client (GH-28765) (GH-28935)
At import time, the xmlrpc.client module uses different date formats to
test strftime so it can format years with 4 digits consistently.
Depending on the underlying C library and its strftime implementation
some of these calls can result in ValueErrors, blocking the
xmlrpc.client module from being imported.
This commit changes the behavior of this bit of code to react to
ValueError exceptions, treating the format that caused them as an
non-viable option.
(cherry picked from commit 1c831353816ff699b54e804047a7242a09e98f5b)
Document that the "standalone" parameter was added in Python 3.9. Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit c7e81fcf9548ab6a0a4828d6f2db9ece9d204826)
[doc] Mention __slots__ behavior in weakref.rst (GH-21061) (GH-28773)
It took me longer than I expected to figure out why a random class
I dealt with didn't support weak references. I believe this addition
will make the __slots__/weakref interaction more discoverable to people
having troubles with this. (Before this patch __slots__ was not
mentioned in weakref documentation even once).
bpo-45328: Avoid failure in OSs without TCP_NODELAY support (GH-28646) (GH-28770)
Operating systems without support for TCP_NODELAY will raise an OSError
when trying to set the socket option, but the show can still go on.
(cherry picked from commit 0571b934f5f9198c3461a7b631d7073ac0a5676f)
It seems part of `gethostbyname_ex` doc was copied from `gethostbyaddr`. The latter has an `ip_address` parameter whereas the former doesn't.
(cherry picked from commit 4103280b83e1419bef535a42813d6dbe83bfe880)
Co-authored-by: Andre Delfino <adelfino@gmail.com> Co-authored-by: Andre Delfino <adelfino@gmail.com>
John Belmonte [Tue, 5 Oct 2021 06:37:24 +0000 (15:37 +0900)]
[3.9] bpo-44594: fix (Async)ExitStack handling of __context__ (gh-27089) (GH-28731)
Make enter_context(foo()) / enter_async_context(foo()) equivalent to
`[async] with foo()` regarding __context__ when an exception is raised.
Previously exceptions would be caught and re-raised with the wrong
context when explicitly overriding __context__ with None..
(cherry picked from commit e6d1aa1ac65b6908fdea2c70ec3aa8c4f1dffcb5)
Co-authored-by: John Belmonte <john@neggie.net> Automerge-Triggered-By: GH:njsmith
On Unix, if the sem_clockwait() function is available in the C
library (glibc 2.30 and newer), the threading.Lock.acquire() method
now uses the monotonic clock (time.CLOCK_MONOTONIC) for the timeout,
rather than using the system clock (time.CLOCK_REALTIME), to not be
affected by system clock changes.
Add a PID to names of POSIX shared memory objects to allow
running multiprocessing tests (test_multiprocessing_fork,
test_multiprocessing_spawn, etc) in parallel.
(cherry picked from commit eb4495e8e275c83d691add116c4f2b74e73e3cc8)
* Work correctly if an additional fresh module imports other
additional fresh module which imports a blocked module.
* Raises ImportError if the specified module cannot be imported
while all additional fresh modules are successfully imported.
* Support blocking packages.
* Always restore the import state of fresh and blocked modules
and their submodules.
* Fix test_decimal and test_xml_etree which depended on an undesired
side effect of import_fresh_module().
(cherry picked from commit ec4d917a6a68824f1895f75d113add9410283da7)
[3.9] bpo-39039: tarfile raises descriptive exception from zlib.error (GH-27766) (GH-28614)
* during tarfile parsing, a zlib error indicates invalid data
* tarfile.open now raises a descriptive exception from the zlib error
* this makes it clear to the user that they may be trying to open a
corrupted tar file.
(cherry picked from commit b6fe8572509b77d2002eaddf99d718e9b4835684)
Co-authored-by: Jack DeVries <58614260+jdevries3133@users.noreply.github.com>
Victor Stinner [Mon, 27 Sep 2021 21:40:22 +0000 (23:40 +0200)]
bpo-1596321: Fix threading._shutdown() for the main thread (GH-28549) (GH-28589)
Fix the threading._shutdown() function when the threading module was
imported first from a thread different than the main thread: no
longer log an error at Python exit.
Fix a race condition in the Thread.join() method of the threading
module. If the function is interrupted by a signal and the signal
handler raises an exception, make sure that the thread remains in a
consistent state to prevent a deadlock.
(cherry picked from commit a22be4943c119fecf5433d999227ff78fc2e5741)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.9] bpo-45166: fixes `get_type_hints` failure on `Final` (GH-28279) (GH-28561)
Co-authored-by: Łukasz Langa <lukasz@langa.pl> Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>.
(cherry picked from commit 784905dbeff68cf788bbeefe0a675af1af04affc)
[3.9] bpo-45229: Remove test_main in many tests (GH-28405) (GH-28456)
Instead of explicitly enumerate test classes for run_unittest()
use the unittest ability to discover tests. This also makes these
tests discoverable and runnable with unittest.
load_tests() can be used for dynamic generating tests and adding
doctests. setUpModule(), tearDownModule() and addModuleCleanup()
can be used for running code before and after all module tests..
(cherry picked from commit 40348acc180580371d25f75f46b27048e35f2435)
bpo-36674: Honour the skipping decorators in TestCase.debug() (GH-28446)
unittest.TestCase.debug() raises now a SkipTest if the class or
the test method are decorated with the skipping decorator.
Previously it only raised a SkipTest if the test method was decorated
with other decorator in addition to the skipping decorator, or
if SkipTest was explicitly raised in the test or setup methods.
(cherry picked from commit dea59cf88adf5d20812edda330e085a4695baba4)
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