Commit Graph

111 Commits

Author SHA1 Message Date
Shantanu 73c08eeaff
Fix typo in 3.12 What's New (#100449) 2022-12-23 00:22:31 -06:00
Itamar Ostricher 4cc63e0d4e
gh-100344: Add C implementation for `asyncio.current_task` (#100345)
Co-authored-by: pranavtbhat
2022-12-22 19:08:12 +05:30
Carlton Gibson 532aa4e4e0
gh-94912: Added marker for non-standard coroutine function detection (#99247)
This introduces a new decorator `@inspect.markcoroutinefunction`,
which, applied to a sync function, makes it appear async to
`inspect.iscoroutinefunction()`.
2022-12-18 11:13:24 -08:00
Victor Stinner b11a384dc7
gh-98724: Fix Py_CLEAR() macro side effects (#99100) (#100070)
The Py_CLEAR(), Py_SETREF() and Py_XSETREF() macros now only evaluate
their arguments once. If an argument has side effects, these side
effects are no longer duplicated.

Use temporary variables to avoid duplicating side effects of macro
arguments. If available, use _Py_TYPEOF() to avoid type punning.
Otherwise, use memcpy() for the assignment to prevent a
miscompilation with strict aliasing caused by type punning.

Add _Py_TYPEOF() macro: __typeof__() on GCC and clang.

Add test_py_clear() and test_py_setref() unit tests to _testcapi.
2022-12-07 15:22:38 +01:00
Serhiy Storchaka fd38a2f0ec
gh-93453: No longer create an event loop in get_event_loop() (#98440)
asyncio.get_event_loop() now always return either running event loop or
the result of get_event_loop_policy().get_event_loop() call. The latter
should now raise an RuntimeError if no current event loop was set
instead of creating and setting a new event loop.

It affects also a number of asyncio functions and constructors which
call get_event_loop() implicitly: ensure_future(), shield(), gather(),
etc.

DeprecationWarning is no longer emitted if there is no running event loop but
the current event loop was set.

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
2022-12-06 18:42:12 +01:00
Serhiy Storchaka a87c46eab3
bpo-15999: Accept arbitrary values for boolean parameters. (#15609)
builtins and extension module functions and methods that expect boolean values for parameters now accept any Python object rather than just a bool or int type. This is more consistent with how native Python code itself behaves.
2022-12-03 11:52:21 -08:00
Itamar Ostricher 3c137dc613
GH-91054: Add code object watchers API (GH-99859)
* Add API to allow extensions to set callback function on creation and destruction of PyCodeObject

Co-authored-by: Ye11ow-Flash <janshah@cs.stonybrook.edu>
2022-12-02 17:28:27 +00:00
Dong-hee Na 8bb2303fd7
gh-99127: Allow some features of syslog to the main interpreter only (gh-99128) 2022-11-30 07:58:20 +09:00
Victor Stinner 3a803bcaac
Revert "gh-98724: Fix Py_CLEAR() macro side effects" (#99737)
Revert "gh-98724: Fix Py_CLEAR() macro side effects (#99100)"

This reverts commit c03e05c2e7.
2022-11-24 22:17:33 +01:00
Charles Machalow 1b2de89bce
gh-99547: Add isjunction methods for checking if a path is a junction (GH-99548) 2022-11-22 17:19:34 +00:00
Petr Viktorin 4d82f628c4
gh-47146: Soft-deprecate structmember.h, expose its contents via Python.h (GH-99014)
The ``structmember.h`` header is deprecated, though it continues to be available
and there are no plans to remove it. There are no deprecation warnings. Old code
can stay unchanged (unless the extra include and non-namespaced macros bother
you greatly). Specifically, no uses in CPython are updated -- that would just be
unnecessary churn.
The ``structmember.h`` header is deprecated, though it continues to be
available and there are no plans to remove it.

Its contents are now available just by including ``Python.h``,
with a ``Py`` prefix added if it was missing:

- `PyMemberDef`, `PyMember_GetOne` and`PyMember_SetOne`
- Type macros like `Py_T_INT`, `Py_T_DOUBLE`, etc.
  (previously ``T_INT``, ``T_DOUBLE``, etc.)
- The flags `Py_READONLY` (previously ``READONLY``) and
  `Py_AUDIT_READ` (previously all uppercase)

Several items are not exposed from ``Python.h``:

- `T_OBJECT` (use `Py_T_OBJECT_EX`)
- `T_NONE` (previously undocumented, and pretty quirky)
- The macro ``WRITE_RESTRICTED`` which does nothing.
- The macros ``RESTRICTED`` and ``READ_RESTRICTED``, equivalents of
  `Py_AUDIT_READ`.
- In some configurations, ``<stddef.h>`` is not included from ``Python.h``.
  It should be included manually when using ``offsetof()``.

The deprecated header continues to provide its original
contents under the original names.
Your old code can stay unchanged, unless the extra include and non-namespaced
macros bother you greatly.

There is discussion on the issue to rename `T_PYSSIZET` to `PY_T_SSIZE` or
similar. I chose not to do that -- users will probably copy/paste that with any
spelling, and not renaming it makes migration docs simpler.


Co-Authored-By: Alexander Belopolsky <abalkin@users.noreply.github.com>
Co-Authored-By: Matthias Braun <MatzeB@users.noreply.github.com>
2022-11-22 08:25:43 +01:00
Nikita Sobolev a3360facba
gh-99284: [ctypes] remove `_use_broken_old_ctypes_structure_semantics_` (GH-99285)
It was untested and undocumented. No code has been found in the wild that ever used it.
2022-11-18 22:25:32 -08:00
Kumar Aditya f63002755d
GH-99388: add `loop_factory` parameter to `asyncio.run` (#99462) 2022-11-14 10:18:51 -08:00
Victor Stinner 9a7e9f9921
gh-99289: Add COMPILEALL_OPTS to Makefile (#99291)
Add COMPILEALL_OPTS variable in Makefile to override compileall
options (default: -j0) in "make install". Also merge the compileall
commands into a single command building PYC files for the all
optimization levels (0, 1, 2) at once.

Co-authored-by: Gregory P. Smith <greg@krypto.org>
2022-11-14 13:43:45 +01:00
Erlend E. Aasland c95f554a40
gh-83638: Add sqlite3.Connection.autocommit for PEP 249 compliant behaviour (#93823)
Introduce the autocommit attribute to Connection and the autocommit
parameter to connect() for PEP 249-compliant transaction handling.

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
Co-authored-by: Géry Ogam <gery.ogam@gmail.com>
2022-11-12 23:44:41 +01:00
Kumar Aditya aa874326d8
GH-94597: add deprecation warnings for subclassing `AbstractChildWatcher` (#99386) 2022-11-11 23:17:53 -08:00
Victor Stinner c03e05c2e7
gh-98724: Fix Py_CLEAR() macro side effects (#99100)
The Py_CLEAR(), Py_SETREF() and Py_XSETREF() macros now only evaluate
their argument once. If an argument has side effects, these side
effects are no longer duplicated.

Add test_py_clear() and test_py_setref() unit tests to _testcapi.
2022-11-09 14:06:36 +01:00
Victor Stinner 4d5fcca273
gh-91248: Add PyFrame_GetVar() function (#95712)
Add PyFrame_GetVar() and PyFrame_GetVarString() functions to get a
frame variable by its name.

Move PyFrameObject C API tests from test_capi to test_frame.
2022-11-08 17:40:27 +01:00
Nikita Sobolev e56e33d271
gh-72719: Remove asyncore and asynchat modules (#96580)
Remove modules asyncore and asynchat, which were deprecated by PEP 594.

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
2022-11-08 16:48:58 +01:00
Pablo Galindo Salgado 6168e714be
gh-98254: Add what's new entry for the improvement in commit bb56dead33 (#99197) 2022-11-07 13:37:14 +00:00
Pablo Galindo Salgado be31ecf8b3
gh-91058: Add what's new entry for the improvement in commit 7cfbb49fcd (#99198) 2022-11-07 13:36:48 +00:00
Wenzel Jakob 57a405213c
gh-98586: Add What's New entry and update docs (#99056)
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
2022-11-06 23:54:55 +01:00
Pablo Galindo Salgado 99e2e60cb2
gh-99139: Improve NameError error suggestion for instances (#99140) 2022-11-06 13:52:06 +00:00
Victor Stinner 0faa0ba240
gh-92584: Remove the distutils package (#99061)
Remove the distutils package. It was deprecated in Python 3.10 by PEP
632 "Deprecate distutils module". For projects still using distutils
and cannot be updated to something else, the setuptools project can
be installed: it still provides distutils.

* Remove Lib/distutils/ directory
* Remove test_distutils
* Remove references to distutils
* Skip test_check_c_globals and test_peg_generator since they use
  distutils
2022-11-03 19:27:27 +01:00
Victor Stinner ef0e72b31d
gh-94172: Remove keyfile, certfile and check_hostname parameters (#94173)
Remove the keyfile, certfile and check_hostname parameters,
deprecated since Python 3.6, in modules: ftplib, http.client,
imaplib, poplib and smtplib. Use the context parameter (ssl_context
in imaplib) instead.

Parameters following the removed parameters become keyword-only
parameters.

ftplib: Remove the FTP_TLS.ssl_version class attribute: use the
context parameter instead.
2022-11-03 18:32:25 +01:00
Victor Stinner a60ddd31be
gh-98401: Invalid escape sequences emits SyntaxWarning (#99011)
A backslash-character pair that is not a valid escape sequence now
generates a SyntaxWarning, instead of DeprecationWarning.  For
example, re.compile("\d+\.\d+") now emits a SyntaxWarning ("\d" is an
invalid escape sequence), use raw strings for regular expression:
re.compile(r"\d+\.\d+"). In a future Python version, SyntaxError will
eventually be raised, instead of SyntaxWarning.

Octal escapes with value larger than 0o377 (ex: "\477"), deprecated
in Python 3.11, now produce a SyntaxWarning, instead of
DeprecationWarning. In a future Python version they will be
eventually a SyntaxError.

codecs.escape_decode() and codecs.unicode_escape_decode() are left
unchanged: they still emit DeprecationWarning.

* The parser only emits SyntaxWarning for Python 3.12 (feature
  version), and still emits DeprecationWarning on older Python
  versions.
* Fix SyntaxWarning by using raw strings in Tools/c-analyzer/ and
  wasm_build.py.
2022-11-03 17:53:25 +01:00
Pablo Galindo Salgado 395d4285bf
gh-98931: Improve error message when the user types 'import x from y' instead of 'from y import x' (#98932) 2022-11-01 13:01:20 +00:00
Jelle Zijlstra 5cf317ade1
gh-98658: Add __class_getitem__ to array.array (#98661)
Closes #98658
2022-10-31 21:10:18 -07:00
domragusa e089f23bbb
gh-84538: add strict argument to pathlib.PurePath.relative_to (GH-19813)
By default, :meth:`pathlib.PurePath.relative_to` doesn't deal with paths that are not a direct prefix of the other, raising an exception in that instance. This change adds a *walk_up* parameter that can be set to allow for using ``..`` to calculate the relative path.

example:
```
>>> p = PurePosixPath('/etc/passwd')
>>> p.relative_to('/etc')
PurePosixPath('passwd')
>>> p.relative_to('/usr')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "pathlib.py", line 940, in relative_to
    raise ValueError(error_message.format(str(self), str(formatted)))
ValueError: '/etc/passwd' does not start with '/usr'
>>> p.relative_to('/usr', strict=False)
PurePosixPath('../etc/passwd')
```


https://bugs.python.org/issue40358

Automerge-Triggered-By: GH:brettcannon
2022-10-28 16:20:14 -07:00
Erlend E. Aasland 723ebe76e7
gh-96143: Improve perf profiler docs (#96445) 2022-10-27 14:06:48 +01:00
Serhiy Storchaka 75a6fadf36
gh-91524: Speed up the regular expression substitution (#91525)
Functions re.sub() and re.subn() and corresponding re.Pattern methods
are now 2-3 times faster for replacement strings containing group references.

Closes #91524

Primarily authored by serhiy-storchaka Serhiy Storchaka
Minor-cleanups-by: Gregory P. Smith [Google] <greg@krypto.org>
2022-10-23 15:57:30 -07:00
Carl Meyer 82ccbf69a8
gh-91051: allow setting a callback hook on PyType_Modified (GH-97875) 2022-10-21 14:41:51 +01:00
Victor Stinner db03c8066a
gh-98393: os module reject bytes-like, only accept bytes (#98394)
The os module and the PyUnicode_FSDecoder() function no longer accept
bytes-like paths, like bytearray and memoryview types: only the exact
bytes type is accepted for bytes strings.
2022-10-18 17:52:31 +02:00
C.A.M. Gerlach 5fe0431474
gh-95913: Move subinterpreter exper removal to 3.11 WhatsNew (GH-98345)
Part of #95913
Forward port of #93306, which was a backport of #93185, to address #84694

This adds the What's New entry for the removal of the subinterpreter-related env variable, build-time flag, etc. As @ericsnowcurrently  was author of the original changes, I added him as a co-author to the commit.

This addition to the Python 3.11 What's New document were only made to the Python 3.11 branch during the backport process, and not added to the version in `main`. Forward-porting it ensures the docs retain these additions for the future, rather than being lost in a legacy Python versions, allows it to be be edited as part of #95913 , and avoids merge conflicts with routine back-ports of PRs touching it.

I've pulled in the addition exactly as-is with no modifications; any editing will be done in future PRs (and therefore can be reviewed and backported accordingly).

The one other such addition is forward-ported in #98344
2022-10-17 12:59:22 -07:00
Kumar Aditya 660f10248b
GH-94597: Deprecate child watcher getters and setters (#98215)
This is the next step for deprecating child watchers.

Until we've removed the API completely we have to use it, so this PR is mostly suppressing a lot of warnings when using the API internally.

Once the child watcher API is totally removed, the two child watcher implementations we actually use and need (Pidfd and Thread) will be turned into internal helpers.
2022-10-15 16:09:30 -07:00
Julien Palard 4067c6d7fe
gh-86404: Doc: Drop now unused make suspicious and rstlint. (GH-98179)
They have been replaced by
[sphinx-lint](https://github.com/sphinx-contrib/sphinx-lint).
2022-10-11 15:31:33 +02:00
Carl Meyer f1879690aa
Update whatsnew instructions for GitHub (#98124) 2022-10-10 00:29:25 +02:00
Kumar Aditya d8765284f3
GH-94597: deprecate `SafeChildWatcher`, `FastChildWatcher` and `MultiLoopChildWatcher` child watchers (#98089) 2022-10-08 13:52:19 -07:00
Pablo Galindo Salgado 83eb827247
gh-97922: Run the GC only on eval breaker (#97920) 2022-10-08 07:57:09 -07:00
Carl Meyer e82d977eb0
gh-91052: Add PyDict_Unwatch for unwatching a dictionary (#98055) 2022-10-07 17:37:46 -07:00
Hugo van Kemenade fa2d43e518
Docs: Fix backtick errors found by sphinx-lint (#97998)
Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
2022-10-06 18:01:30 -07:00
Brett Cannon e1c4d56fdd
gh-65961: Do not rely solely on `__cached__` (GH-97990)
Make sure `__spec__.cached` (at minimum) can be used.
2022-10-06 15:40:22 -07:00
Brett Cannon c206e53bb7
gh-65961: Raise `DeprecationWarning` when `__package__` differs from `__spec__.parent` (#97879)
Also remove `importlib.util.set_package()` which was already slated for removal.

Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
2022-10-05 15:00:45 -07:00
Barry Warsaw 5dc3599135
gh-97850: Remove all known instances of module_repr() (#97876)
Remove all known instances of module_repr()
2022-10-05 11:42:26 -07:00
Serhiy Storchaka e3ef400be7
gh-74696: Pass root_dir to custom archivers which support it (GH-94251)
Co-authored-by: Éric <merwok@netwok.org>
2022-10-05 12:48:59 +03:00
Ev2geny 743453a554
gh-58451: Add optional delete_on_close parameter to NamedTemporaryFile (GH-97015) 2022-10-04 23:37:33 +01:00
Victor Stinner 6cbbc26a73
gh-97669: Remove outdated example scripts (#97675)
Remove outdated example scripts of the Tools/scripts/ directory. A
copy can be found in the old-demos project:
https://github.com/gvanrossum/old-demos

Removed scripts (39):

* byext.py
* byteyears.py
* cleanfuture.py
* copytime.py
* crlf.py
* db2pickle.py
* dutree.doc
* dutree.py
* find-uname.py
* find_recursionlimit.py
* finddiv.py
* findlinksto.py
* findnocoding.py
* fixcid.py
* fixdiv.py
* fixheader.py
* fixnotice.py
* fixps.py
* get-remote-certificate.py
* google.py
* highlight.py
* ifdef.py
* import_diagnostics.py
* lfcr.py
* linktree.py
* lll.py
* mailerdaemon.py
* make_ctype.py
* mkreal.py
* objgraph.py
* pdeps.py
* pickle2db.py
* pindent.py
* pysource.py
* reindent-rst.py
* rgrep.py
* suff.py
* texi2html.py
* which.py

Changes:

* Remove test_fixcid, test_lll, test_pdeps and test_pindent
  of test.test_tools.
* Remove get-remote-certificate.py changelog entry, since the script
  was removed.

Note: there is a copy of crlf.py in Lib/test/test_lib2to3/data/.
2022-10-04 10:49:00 +02:00
Victor Stinner 64fe343717
gh-97681: Remove Tools/demo/ directory (#97682)
Remove the Tools/demo/ directory which contained old demo scripts. A
copy can be found in the old-demos project:
https://github.com/gvanrossum/old-demos

Remove the following old demo scripts:

* beer.py
* eiffel.py
* hanoi.py
* life.py
* markov.py
* mcast.py
* queens.py
* redemo.py
* rpython.py
* rpythond.py
* sortvisu.py
* spreadsheet.py
* vector.py

Changes:

* Remove a reference to the redemo.py script in the regex howto
  documentation.
* Remove a reference to the removed Tools/demo/ directory in the
  curses documentation.
* Update PC/layout/ to remove the reference to Tools/demo/ directory.
2022-10-03 17:09:02 +02:00
Ofey Chan 83a3de4e06
gh-96348: Deprecate the 3-arg signature of coroutine.throw and generator.throw (GH-96428) 2022-09-30 09:43:02 +01:00
Pablo Galindo Salgado aab01e3524
gh-96670: Raise SyntaxError when parsing NULL bytes (#97594) 2022-09-27 23:23:42 +01:00