Fix importlib examples to insert any newly created modules via importlib.util.module_from_spec() immediately into sys.modules instead of after calling loader.exec_module().
Thanks to Benjamin Mintz for finding the bug.
https://bugs.python.org/issue37521
(cherry picked from commit 0827064c95)
Co-authored-by: Brett Cannon <54418+brettcannon@users.noreply.github.com>
https://bugs.python.org/issue37521
With the addition of shared memory into Python 3.8, we now have three tests failing on Solaris, namely `test_multiprocessing_fork`, `test_multiprocessing_forkserver` and `test_multiprocessing_spawn`. The reason seems to be incorrect name handling which results in two slashes being prepended.
https://bugs.python.org/issue37558
(cherry picked from commit 4737265622)
Co-authored-by: Jakub Kulík <Kulikjak@gmail.com>
Nested BinOp instances (e.g. a+b+c) had a wrong col_offset for the
second BinOp (e.g. 2 instead of 0 in the example). Fix it by using the
correct st node to copy the line and col_offset from in ast.c.
(cherry picked from commit 110a47c4f4)
Co-authored-by: Carl Friedrich Bolz-Tereick <cfbolz@gmx.de>
test_concurrent_futures now explicitly stops the ForkServer instance
if it's running.
(cherry picked from commit e676244235)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
* bpo-37520: Correct behavior for zipfile.Path.parent
* 📜🤖 Added by blurb_it.
(cherry picked from commit 38f44b4a4a)
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
This is done to compensate for the extra stack frames added by
IDLE itself, which cause problems when setting the recursion limit
to low values.
This wraps sys.setrecursionlimit() and sys.getrecursionlimit()
as invisibly as possible.
(cherry picked from commit fcf1d003bf)
Co-authored-by: Tal Einat <taleinat+github@gmail.com>
multiprocessing tests now stop the ForkServer instance if it's
running: close the "alive" file descriptor to ask the server to stop
and then remove its UNIX address.
(cherry picked from commit 8fbeb14312)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
The distutils bdist_wininst command is now deprecated, use
bdist_wheel (wheel packages) instead.
(cherry picked from commit 1da4462765)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Fix multiprocessing.util.get_temp_dir() finalizer: clear also the
'tempdir' configuration of the current process, so next call to
get_temp_dir() will create a new temporary directory, rather than
reusing the removed temporary directory.
(cherry picked from commit 9d40554e0d)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
test_distutils.test_build_ext() is now able to remove the temporary
directory on Windows: don't import the newly built C extension ("xx")
in the current process, but test it in a separated process.
(cherry picked from commit 74c9dd5777)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
test_concurrent_futures now cleans up multiprocessing to remove
immediately temporary directories created by
multiprocessing.util.get_temp_dir().
The test now uses setUpModule() and tearDownModule().
(cherry picked from commit 684cb47fff)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
test_winconsoleio doesn't leak a temporary file anymore: use
tempfile.TemporaryFile() to remove it when the test completes.
(cherry picked from commit b71d8d6795)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
ssl.match_hostname() no longer accepts IPv4 addresses with additional text
after the address and only quad-dotted notation without trailing
whitespaces. Some inet_aton() implementations ignore whitespace and all data
after whitespace, e.g. '127.0.0.1 whatever'.
Short notations like '127.1' for '127.0.0.1' were already filtered out.
The bug was initially found by Dominik Czarnota and reported by Paul Kehrer.
Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37463
(cherry picked from commit 477b1b2576)
Co-authored-by: Christian Heimes <christian@python.org>
multiprocessing tests now call explicitly _run_finalizers() to remove
immediately temporary directories created by
multiprocessing.util.get_temp_dir().
(cherry picked from commit 039fb49c18)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Python initialization now ensures that sys stream encoding
names are always normalized by codecs.lookup(encoding).name.
Simplify test_c_locale_coercion: it doesn't have to normalize
encoding names anymore.
(cherry picked from commit 61bf97e916)
Co-authored-by: Jakub Kulík <Kulikjak@gmail.com>
Under some conditions the earlier fix for bpo-18075, "Infinite recursion
tests triggering a segfault on Mac OS X", now causes failures on macOS
when attempting to change stack limit with resource.setrlimit
resource.RLIMIT_STACK, like regrtest does when running the test suite.
The reverted change had specified a non-default stack size when linking
the python executable on macOS. As of macOS 10.14.4, the previous
code causes a hard failure when running tests, although similar
failures had been seen under some conditions under some earlier
systems. Reverting the change to the interpreter stack size at link
time helped for release builds but caused some tests to fail when
built --with-pydebug. Try the opposite approach: continue to build
the interpreter with an increased stack size on macOS and remove
the failing setrlimit call in regrtest initialization. This will
definitely avoid the resource.RLIMIT_STACK error and should have
no, or fewer, side effects.
(cherry picked from commit 5bbbc733e6)
Co-authored-by: Ned Deily <nad@python.org>
Fix sys.excepthook() and PyErr_Display() if a filename is a bytes
string. For example, for a SyntaxError exception where the filename
attribute is a bytes string.
Cleanup also test_sys:
* Sort imports.
* Rename numruns global var to INTERN_NUMRUNS.
* Add DisplayHookTest and ExceptHookTest test case classes.
* Don't save/restore sys.stdout and sys.displayhook using
setUp()/tearDown(): do it in each test method.
* Test error case (call hook with no argument) after the success case.
(cherry picked from commit f9b7457bd7)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
bdist_wininst depends on MBCS codec, unavailable on non-Windows,
and bdist_wininst have not worked since at least Python 3.2, possibly
never on Python 3.
Here we document that bdist_wininst is only supported on Windows,
and we mark it unsupported otherwise to skip tests.
Distributors of Python 3 can now safely drop the bdist_wininst .exe files
without the need to skip bdist_wininst related tests.
(cherry picked from commit 72cd653c4e)
Co-authored-by: Miro Hrončok <miro@hroncok.cz>
Add PyCode_NewEx to be used internally and set PyCode_New as a compatibility wrapper
(cherry picked from commit 4a2edc34a4)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
SSLContext.post_handshake_auth = True no longer sets
SSL_VERIFY_POST_HANDSHAKE verify flag for client connections. Although the
option is documented as ignored for clients, OpenSSL implicitly enables cert
chain validation when the flag is set.
Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37428
(cherry picked from commit f0f5930ac8)
sys._base_executable is now always defined on all platforms, and can be overridden through configuration.
Also adds test.support.PythonSymlink to encapsulate platform-specific logic for symlinking sys.executable
* Fix typo in supports_file2file_sendfile(); ensure that dst is
removed
* Fix test_copytree_custom_copy_function(): remove dst tree.
Use support.rmtree() rather than shutil.rmtree() to remove
temporary directories: support tries harder.
(cherry picked from commit 4c26abd14f)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
* patched string index out of range error in get_word function of _header_value_parser.py and created tests in test__header_value_parser.py for CFWS.
* Raise HeaderParseError instead of continuing when parsing a word.
(cherry picked from commit 7213df7bbf)
Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>
Fix test_wsgiref.testEnviron() to no longer depend on the environment
variables (don't fail if "X" variable is set).
testEnviron() now overrides os.environ to get a deterministic
environment. Test full TestHandler.environ content: not only a few
selected variables.
(cherry picked from commit 5150d32792)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
The os.getcwdb() function now uses the UTF-8 encoding on Windows,
rather than the ANSI code page: see PEP 529 for the rationale. The
function is no longer deprecated on Windows.
os.getcwd() and os.getcwdb() now detect integer overflow on memory
allocations. On Unix, these functions properly report MemoryError on
memory allocation failure.
(cherry picked from commit 689830ee62)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
When certain malformed messages have content-type set to 'mulitpart/*' but
still have a single part body, iter_attachments can raise AttributeError. This
patch fixes it by returning a None value instead when the body is single part.
(cherry picked from commit 02257012f6)
Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>
https://bugs.python.org/issue33972
Use os.getgroups() rather than grp.getgrall() to get groups.
Rename also the test to test_chown_gid().
(cherry picked from commit d7c87d982d)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
* The UTF-8 incremental decoders fails now fast if encounter
a sequence that can't be handled by the error handler.
* The UTF-16 incremental decoders with the surrogatepass error
handler decodes now a lone low surrogate with final=False.
(cherry picked from commit 894263ba80)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* regrtest: Add --cleanup option to remove "test_python_*" directories
of previous failed test jobs.
* Add "make cleantest" to run "python3 -m test --cleanup".
(cherry picked from commit 47fbc4e45b)
… as proposed in PEP 572; key is now evaluated before value.
https://bugs.python.org/issue35224
(cherry picked from commit c8a35417db)
Co-authored-by: Jörn Heissler <joernheissler@users.noreply.github.com>
test_gdb no longer fails if it gets an "unexpected" message on
stderr: it now ignores stderr. The purpose of test_gdb is to test
that python-gdb.py commands work as expected, not to test gdb.
(cherry picked from commit e56a123fd0)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Tab now moves focus across and down for Help Source and Custom Run.
(cherry picked from commit 54cf2e0780)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
For datetime.datetime.strptime(), the leading zero for some two-digit formats is optional.
This adds a footnote to the strftime/strptime documentation to reflect this fact, and adds some tests to ensure that it is true.
bpo-34903
(cherry picked from commit 6b9c204ee7)
Co-authored-by: Mike Gleen <mike.gleen@gmail.com>
The initialize options are 1) add command line options, which are appended to sys.argv as if passed on a real command line, and 2) skip the shell restart. The customization dialog is accessed by a new entry on the Run menu.
(cherry picked from commit 201bc2d18b)
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
Many PyRun_XXX() functions like PyRun_String() were no longer
exported in libpython38.dll by mistake. Export them again to fix the
ABI compatibiliy.
(cherry picked from commit 343ed0ffe0)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Measure required height by quickly maximizing once per screen.
A search for a better method failed.
(cherry picked from commit 5bff3c86ab)
Co-authored-by: Tal Einat <taleinat+github@gmail.com>
On Windows, os.dup() no longer creates an inheritable fd when handling a
character file.
(cherry picked from commit 28fca0c422)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
uuid could try fallback methods that had no chance of working on a particular
platform, and this could cause spurious test failures, as well as degraded
performance as fallback options were tried and failed.
This fixes both the uuid module and its test's SkipUnless logic to use a
prefiltered list of techniques that may at least potentially work on that platform.
Patch by Michael Felt (aixtools).
(cherry picked from commit 3a1d50e7e5)
Co-authored-by: Michael Felt <aixtools@users.noreply.github.com>
Join the thread to prevent leaking a running thread and leaking a
reference.
Cleanup also the test:
* asyncioWindowsProactorEventLoopPolicy became the default policy,
there is no need to set it manually.
* Only start the thread once the loop is running.
* Use a shorter sleep in the thread (100 ms rather than 1 sec).
* Use close_loop(loop) rather than loop.close().
* Use longer variable names.
(cherry picked from commit 07559450b2)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Fix a regression introduced by af8646c805 that was causing code of the form:
if True and False:
do_something()
to be optimized incorrectly, eliminating the block.
(cherry picked from commit 05f8318655)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
The peephole optimizer was not optimizing correctly bytecode after negative deltas were introduced. This is due to the fact that some special values (255) were being searched for in both instruction pointer delta and line number deltas.
(cherry picked from commit 3498c642f4)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
The __exit__() method of test.support.catch_unraisable_exception
context manager now ignores unraisable exception raised when clearing
self.unraisable attribute.
(cherry picked from commit 6d22cc8e90)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Calling setlocale(LC_CTYPE, "") on a system where GetACP() returns CP_UTF8 results in empty strings in _tzname[].
This causes time.tzname to be an empty string.
I have reported the bug to the UCRT team and will follow up, but it will take some time get a fix into production.
In the meantime one possible workaround is to temporarily change the locale by calling setlocale(LC_CTYPE, "C") before calling _tzset and restore the current locale after if the GetACP() == CP_UTF8 or CP_UTF7
@zooba
https://bugs.python.org/issue36779
(cherry picked from commit b4c7defe58)
Co-authored-by: Paul Monson <paulmon@users.noreply.github.com>
Allow pure Python implementation of pickle to work
even when the C _pickle module is unavailable.
Fix test_pickle when _pickle is missing: declare PyPicklerHookTests
outside "if has_c_implementation:" block.
(cherry picked from commit 63ab4ba07b)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
* bpo-36402: Fix threading._shutdown() race condition (GH-13948)
Fix a race condition at Python shutdown when waiting for threads.
Wait until the Python thread state of all non-daemon threads get
deleted (join all non-daemon threads), rather than just wait until
Python threads complete.
* Add threading._shutdown_locks: set of Thread._tstate_lock locks
of non-daemon threads used by _shutdown() to wait until all Python
thread states get deleted. See Thread._set_tstate_lock().
* Add also threading._shutdown_locks_lock to protect access to
threading._shutdown_locks.
* Add test_finalization_shutdown() test.
(cherry picked from commit 468e5fec8a)
* bpo-36402: Fix threading.Thread._stop() (GH-14047)
Remove the _tstate_lock from _shutdown_locks, don't remove None.
(cherry picked from commit 6f75c87375)
* bpo-18748: Fix _pyio.IOBase destructor (closed case) (GH-13952)
_pyio.IOBase destructor now does nothing if getting the closed
attribute fails to better mimick _io.IOBase finalizer.
(cherry picked from commit 4f6f7c5a61)
* bpo-37223: test_io: silence destructor errors (GH-13954)
Implement also MockNonBlockWriterIO.seek() method.
(cherry picked from commit b589cef9c4)
* bpo-37223, test_io: silence last 'Exception ignored in:' (GH-14029)
Use catch_unraisable_exception() to ignore 'Exception ignored in:'
error when the internal BufferedWriter of the BufferedRWPair is
destroyed. The C implementation doesn't give access to the
internal BufferedWriter, so just ignore the warning instead.
(cherry picked from commit 913fa1c824)
(A single int is still allowed, but undocumented.)
https://bugs.python.org/issue35766
(cherry picked from commit 10b55c1643)
Co-authored-by: Guido van Rossum <guido@python.org>
* [bpo-36520](https://bugs.python.org/issue36520): reset the encoded word offset when starting a new
line during an email header folding operation
* 📜🤖 Added by blurb_it.
* [bpo-36520](https://bugs.python.org/issue36520): add an additional test case, and provide descriptive
comments for the test_folding_with_utf8_encoding_* tests
* [bpo-36520](https://bugs.python.org/issue36520): fix whitespace issue
* [bpo-36520](https://bugs.python.org/issue36520): changes per reviewer request -- remove extraneous
backslashes; add whitespace between terminating quotes and
line-continuation backslashes; use "bpo-" instead of
"issue GH-" in comments
(cherry picked from commit f6713e84af)
Co-authored-by: websurfer5 <49998481+websurfer5@users.noreply.github.com>
https://bugs.python.org/issue36520
If internal tasks weak set is changed by another thread during iteration.
https://bugs.python.org/issue36607
(cherry picked from commit 65aa64fae8)
Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>
Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue37215
(cherry picked from commit 8a8b59c979)
Co-authored-by: Christian Heimes <christian@python.org>
Fix an unintended ValueError from :func:`subprocess.run` when checking for
conflicting `input` and `stdin` or `capture_output` and `stdout` or `stderr` args
when they were explicitly provided but with `None` values within a passed in
`**kwargs` dict rather than as passed directly by name.
(cherry picked from commit 8cc605acdd)
Co-authored-by: Rémi Lapeyre <remi.lapeyre@henki.fr>
Currently, inspect.getfile(str) will report nonsense:
```pytb
>>> inspect.getfile(str)
TypeError: <module 'builtins' (built-in)> is a built-in class
```
This fixes that
https://bugs.python.org/issue37173
(cherry picked from commit d407d2a726)
Co-authored-by: Philipp A <flying-sheep@web.de>
There is a possibility that someone (like me) accidentally will omit parentheses with `FileType` arguments after `FileType`, and parser will contain wrong file until someone will try to use it.
Example:
```python
parser = argparse.ArgumentParser()
parser.add_argument('-x', type=argparse.FileType)
```
https://bugs.python.org/issue37150
(cherry picked from commit 03d5831a2d)
Co-authored-by: zygocephalus <grrrr@protonmail.com>
Replace two Python function calls with a single one to ensure that no
memory allocation is done between the invalid object is created and
when _PyObject_IsFreed() is called.
(cherry picked from commit 3bf0f3ad20)
This avoids the search dialogs being hidden behind the editor window.
(cherry picked from commit 554450fb4e)
Co-authored-by: Tal Einat <taleinat@gmail.com>
Add it to the end of the first line if there is room. Tests were reworked.
(cherry picked from commit 949fe976d5)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
* bpo-30835: email: Fix AttributeError when parsing invalid Content-Transfer-Encoding
Parsing an email containing a multipart Content-Type, along with a
Content-Transfer-Encoding containing an invalid (non-ASCII-decodable) byte
will fail. email.feedparser.FeedParser._parsegen() gets the header and
attempts to convert it to lowercase before comparing it with the accepted
encodings, but as the header contains an invalid byte, it's returned as a
Header object rather than a str.
Cast the Content-Transfer-Encoding header to a str to avoid this.
Found using the AFL fuzzer.
Reported-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Andrew Donnellan <andrew@donnellan.id.au>
* Add email and NEWS entry for the bugfix.
* bpo-35805: Add parser for Message-ID header.
This parser is based on the definition of Identification Fields from RFC 5322
Sec 3.6.4.
This should also prevent folding of Message-ID header using RFC 2047 encoded
words and hence fix bpo-35805.
* Prevent folding of non-ascii message-id headers.
* Add fold method to MsgID token to prevent folding.
Add BaseEventLoop.wait_executor_on_close attribute: true by default.
loop.close() now waits for the default executor to finish by default.
Set loop.wait_executor_on_close attribute to False to not wait for
the executor.
Modify test_coroutines, test_cprofile, test_generators, test_raise,
test_ssl and test_yield_from to use
support.catch_unraisable_exception() rather than
support.captured_stderr().
test_thread: remove test_save_exception_state_on_error() which is now
updated. test_unraisable_exception() checks that sys.unraisablehook()
is called to handle _thread.start_new_thread() exception.
test_cprofile now rely on unittest for test discovery: replace
support.run_unittest() with unittest.main().
* bpo-37014: Update docstring and Documentation of fileinput.FileInput()
* Explain the behavior of fileinput.FileInput() when reading stdin.
* Update blurb.
* bpo-37014: Fix typo in the docstring and documentation.
Fixed QueueListener in order to avoid random deadlocks.
Unable to add regression tests atm due to time constraints, will add it in a bit.
Regarding implementation, although it's nested, it does not cause performance issues whatsoever, and does not call task_done() in case of an exception (which is the right thing to do IMHO).
https://bugs.python.org/issue36813
Adds a new option in trace that allows tracing runnable modules. It is
exposed as `--module module_name` as `-m` is already in use for another
argument.
This adds a vector of "search fingers" so that usable_arenas can be kept in sorted order (by number of free pools) via constant-time operations instead of linear search.
This should reduce worst-case time for reclaiming a great many objects from O(A**2) to O(A), where A is the number of arenas. See bpo-37029.
The ssl module now can dump key material to a keylog file and trace TLS
protocol messages with a tracing callback. The default and stdlib
contexts also support SSLKEYLOGFILE env var.
The msg_callback and related enums are private members. The feature
is designed for internal debugging and not for end users.
Signed-off-by: Christian Heimes <christian@python.org>
This is an old feature request that appears from time to time. After a year of experimenting with various introspection capabilities in `typing_inspect` on PyPI, I propose to add these two most commonly used functions: `get_origin()` and `get_args()`. These are essentially thin public wrappers around private APIs: `__origin__` and `__args__`.
As discussed in the issue and on the typing tracker, exposing some public helpers instead of `__origin__` and `__args__` directly will give us more flexibility if we will decide to update the internal representation, while still maintaining backwards compatibility.
The implementation is very simple an is essentially a copy from `typing_inspect` with one exception: `ClassVar` was special-cased in `typing_inspect`, but I think this special-casing doesn't really help and only makes things more complicated.
Bump the removal to 3.9, indicate collections.abc available since 3.3,
replace version-changed directive to deprecated-removed.
https://bugs.python.org/issue36953
It is now allowed to add new fields at the end of the PyTypeObject struct without having to allocate a dedicated compatibility flag in tp_flags.
This will reduce the risk of running out of bits in the 32-bit tp_flags value.
* bpo-26836: Add os.memfd_create()
* Use the glibc wrapper for memfd_create()
Co-Authored-By: Christian Heimes <christian@python.org>
* Fix deletions caused by autoreconf.
* Use MFD_CLOEXEC as the default value for *flags*.
* Add memset_s to configure.ac.
* Revert memset_s changes.
* Apply the requested changes.
* Tweak the docs.
* bpo-22385: Support output separators in hex methods.
Also in binascii.hexlify aka b2a_hex.
The underlying implementation behind all hex generation in CPython uses the
same pystrhex.c implementation. This adds support to bytes, bytearray,
and memoryview objects.
The binascii module functions exist rather than being slated for deprecation
because they return bytes rather than requiring an intermediate step through a
str object.
This change was inspired by MicroPython which supports sep in its binascii
implementation (and does not yet support the .hex methods).
https://bugs.python.org/issue22385
Add explicit `asyncSetUp` and `asyncTearDown` methods.
The rest is the same as for #13228
`AsyncTestCase` create a loop instance for every test for the sake of test isolation.
Sometimes a loop shared between all tests can speed up tests execution time a lot but it requires control of closed resources after every test finish. Basically, it requires nested supervisors support that was discussed with @1st1 many times. Sorry, asyncio supervisors have no chance to land on Python 3.8.
The PR intentionally does not provide API for changing the used event loop or getting the test loop: use `asyncio.set_event_loop_policy()` and `asyncio.get_event_loop()` instead.
The PR adds four overridable methods to base `unittest.TestCase` class:
```
def _callSetUp(self):
self.setUp()
def _callTestMethod(self, method):
method()
def _callTearDown(self):
self.tearDown()
def _callCleanup(self, function, /, *args, **kwargs):
function(*args, **kwargs)
```
It allows using asyncio facilities with minimal influence on the unittest code.
The last but not least: the PR respects contextvars. The context variable installed by `asyncSetUp` is available on test, `tearDown` and a coroutine scheduled by `addCleanup`.
https://bugs.python.org/issue32972
_thread.start_new_thread() now logs uncaught exception raised by the
function using sys.unraisablehook(), rather than sys.excepthook(), so
the hook gets access to the function which raised the exception.
I tried to get rid of the `_ProtocolMeta`, but unfortunately it didn'y work. My idea to return a generic alias from `@runtime_checkable` made runtime protocols unpickleable. I am not sure what is worse (a custom metaclass or having some classes unpickleable), so I decided to stick with the status quo (since there were no complains so far). So essentially this is a copy of the implementation in `typing_extensions` with two modifications:
* Rename `@runtime` to `@runtime_checkable` (plus corresponding updates).
* Allow protocols that extend `collections.abc.Iterable` etc.
It has been documented as deprecated and to be removed in 3.8;
From a comment on another thread – which I can't find ; leave get_coro_wrapper() for now, but always return `None`.
https://bugs.python.org/issue36933
Return a coroutine while patching async functions with a decorator.
Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>
https://bugs.python.org/issue36996
Fix destructor _pyio.BytesIO and _pyio.TextIOWrapper: initialize
their _buffer attribute as soon as possible (in the class body),
because it's used by __del__() which calls close().
Add a new threading.excepthook() function which handles uncaught
Thread.run() exception. It can be overridden to control how uncaught
exceptions are handled.
threading.ExceptHookArgs is not documented on purpose: it should not
be used directly.
* threading.excepthook() and threading.ExceptHookArgs.
* Add _PyErr_Display(): similar to PyErr_Display(), but accept a
'file' parameter.
* Add _thread._excepthook(): C implementation of the exception hook
calling _PyErr_Display().
* Add _thread._ExceptHookArgs: structseq type.
* Add threading._invoke_excepthook_wrapper() which handles the gory
details to ensure that everything remains alive during Python
shutdown.
* Add unit tests.
When using the "=" debug functionality of f-strings, use another Constant node (or a merged constant node) instead of adding expr_text to the FormattedValue node.
This will address the common mistake many asyncio users make:
an "except Exception" clause breaking Tasks cancellation.
In addition to this change, we stop inheriting asyncio.TimeoutError
and asyncio.InvalidStateError from their concurrent.futures.*
counterparts. There's no point for these exceptions to share the
inheritance chain.
In 3.9 we'll focus on implementing supervisors and cancel scopes,
which should allow better handling of all exceptions, including
SystemExit and KeyboardInterrupt
Miss Islington (bot)
Łukasz Langa
Christian Heimes
Steve Dower
Abhilash Raj
Jeroen Demeyer
Victor Stinner
Serhiy Storchaka
Andrew Svetlov
Petr Viktorin
Zackery Spytz
David Carlier
Inada Naoki
Ned Deily
Pablo Galindo
Augusto Hack
Matthias Bussonnier
Michele Angrisano
Cheryl Sabella
Mark Dickinson
Anthony Sottile
Eric Snow
Sergey Fedoseev
Bar Harel
Yash Aggarwal
Mario Corchero
Tim Peters
Ammar Askar
Akshay Sharma
Ivan Levkivskyi
Matthias Bussonnier
xdegaye
Alex Grönholm
Giampaolo Rodola
Ying Wang
Antoine Pitrou
Gregory P. Smith
Bo Bayles
依云
Guido van Rossum
Dino Viehland
Francisco Facioni
Joannah Nanjekye
Mario Corchero
Xtreak
sbstp
Eric V. Smith
Yury Selivanov
Rémi Lapeyre