Add a closure keyword-only parameter to exec(). It can only be specified when exec-ing a code object that uses free variables. When specified, it must be a tuple, with exactly the number of cell variables referenced by the code object. closure has a default value of None, and it must be None if the code object doesn't refer to any free variables.
On slow buildbot workers, some test_ssl tests fail randomly because
of short timeout (30 seconds). Use support.LONG_TIMEOUT instead which
is longer and also adjusted (by regrtest --timeout option) on
buildbot workers known to be slow.
- add member() and nonmember() functions
- add deprecation warning for internal classes in enums not
becoming members in 3.13
Co-authored-by: edwardcwang
Prevent `max_tasks_per_child` use with a "fork" mp_context to avoid deadlocks.
Also defaults to "spawn" when no mp_context is supplied for safe convenience.
Add the -P command line option and the PYTHONSAFEPATH environment
variable to not prepend a potentially unsafe path to sys.path.
* Add sys.flags.safe_path flag.
* Add PyConfig.safe_path member.
* Programs/_bootstrap_python.c uses config.safe_path=0.
* Update subprocess._optim_args_from_interpreter_flags() to handle
the -P command line option.
* Modules/getpath.py sets safe_path to 1 if a "._pth" file is
present.
One more thing that can help prevent people from using `preexec_fn`.
Also adds conditional skips to two tests exposing ASAN flakiness on the Ubuntu 20.04 Address Sanitizer Github CI system. When that build is run on more modern systems the "problem" does not show up. It seems ASAN implementation related.
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
``pymain_run_python()`` now imports ``readline`` and ``rlcompleter``
before sys.path is extended to include the current working directory of
an interactive interpreter. Non-interactive interpreters are not
affected.
Also move imports of ``re`` and ``keyword`` module to top level so they
are materialized early, too. The ``keyword`` module is trivial and the
``re`` is already imported via ``inspect`` -> ``linecache``.
* Map SQLITE_MISUSE to sqlite3.InterfaceError
SQLITE_MISUSE implies misuse of the SQLite C API, which, if it happens,
is _not_ a user error; it is an sqlite3 extension module error.
* Raise better errors when binding parameters fail.
Instead of always raising InterfaceError, guessing what went wrong,
raise accurate exceptions with more accurate error messages.
Fix C++ compiler warnings: "zero as null pointer constant"
(clang -Wzero-as-null-pointer-constant).
* Add the _Py_NULL macro used by static inline functions to use
nullptr in C++.
* Replace NULL with nullptr in _testcppext.cpp.
Use _Py_CAST(), _Py_STATIC_CAST() and _PyASCIIObject_CAST() in
static inline functions to fix C++ compiler warnings:
"use of old-style cast" (clang -Wold-style-cast).
test_cppext now builds the C++ test extension with -Wold-style-cast.
Help for other actions omit the default value if default is SUPPRESS or
already contains the special format string '%(default)'. Add those
special cases to BooleanOptionalAction's help formatting too.
Fixes https://bugs.python.org/issue44587 so that default=SUPPRESS is not
emitted.
Fixes https://bugs.python.org/issue38956 as this code will detect
whether '%(default)s' has already been specified in the help string.
Signed-off-by: Micky Yun Chan (michiboo): <chanmickyyun@gmail.com>
Co-authored-by: Micky Yun Chan <michan@redhat.com>
The function fetch_server_certificate is replaced by get_server_certificate in the module. I reflected the change in the module docstrings.
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Since the underlying file-like objects (either `io.BytesIO`,
or a true file object) all implement the `io.IOBase`
interface, the `SpooledTemporaryFile` should as well.
Additionally, since the underlying file object will either be an
instance of an `io.BufferedIOBase` (for binary mode) or an
`io.TextIOBase` (for text mode), methods for these classes were also
implemented.
In every case, the required methods and properties are simply delegated
to the underlying file object.
Co-authored-by: Gary Fernie <Gary.Fernie@skyscanner.net>
Co-authored-by: Inada Naoki <songofacandy@gmail.com>
`IPv*Network` and `IPv*Interface` constructors accept a 2-tuple of
(address description, netmask) as the address parameter.
When the tuple-based address is used errors are not propagated
correctly through the `ipaddress.ip_*` helper because of the %-formatting now expecting several arguments:
In [7]: ipaddress.ip_network(("192.168.100.0", "fooo"))
...
TypeError: not all arguments converted during string formatting
Compared to:
In [8]: ipaddress.IPv4Network(("192.168.100.0", "foo"))
...
NetmaskValueError: 'foo' is not a valid netmask
Use an f-string to make sure the error is always properly formatted.
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
This mirrors logic in typing.get_args. The trickiness comes from how we
flatten args in collections.abc.Callable, see
https://bugs.python.org/issue42195
Fix C++ compiler warnings on cast macros, like _PyObject_CAST(), when
casting a constant expression to a non constant type: use
const_cast<> in C++.
* In C++, Py_SAFE_DOWNCAST() now uses static_cast<> rather than
reinterpret_cast<>.
* Add tests to the _testcppext C++ extension.
* test_cppext no longer captures stdout in verbose mode.
Build a basic C++ test extension to check that the Python C API is
compatible with C++ and does not emit C++ compiler warnings.
* Add Modules/_testcppext.cpp: C++ extension
* Add Lib/test/test_cppext.py: test building the C++ extension.
If the error handler returns position less or equal than the starting
position of non-encodable characters, most of built-in encoders didn't
properly re-size the output buffer. This led to out-of-bounds writes,
and segfaults.
Raise an ArgumentError when the same subparser name is added twice to an
ArgumentParser. This is consistent with the (default) behavior when the
same option string is added twice to an ArgumentParser.
(Support for `conflict_handler="resolve"` could be considered as a
followup feature, although real use cases seem even rarer than
"resolve"ing option-strings.)
Automerge-Triggered-By: GH:rhettinger
* Check the types of PRECALL_METHOD_DESCRIPTOR_FAST_WITH_KEYWORDS
* fix PRECALL_NO_KW_METHOD_DESCRIPTOR_NOARGS as well
* fix PRECALL_NO_KW_METHOD_DESCRIPTOR_O
* fix PRECALL_NO_KW_METHOD_DESCRIPTOR_FAST
It was raised if the charset itself contains characters not encodable
in UTF-8 (in particular \udcxx characters representing non-decodable
bytes in the source).
Only sequence of ASCII digits will be accepted as a numerical reference.
The group name in bytes patterns and replacement strings could only
contain ASCII letters and digits and underscore.
# Adding 'required' to names in Lib.argparse.Action
gh-91832:
Added 'required' to the list `names` in `Lib.argparse.Action`.
Changed constant strings that test the Action object.
Automerge-Triggered-By: GH:merwok
The warning emitted by the Python parser for a numeric literal
immediately followed by keyword has been changed from deprecation
warning to syntax warning.
It was initially added to support atomic groups, but that
support was never fully implemented, and CALL was only left
in the compiler, but not interpreter and parser.
ATOMIC_GROUP is now used to support atomic groups.
If use a non-builtin codec, partially implemented in Python
(e.g. ISO-8859-15), a new RecursionError (with empty error message)
can be raised while handle a RecursionError.
Testing for error message was needed to distinguish
a recursion error from arbitrary RuntimeError. After introducing
RecursionError, it became unnecessary.
Copied from typing-extensions (python/typing#1054, python/typing#1120).
Documentation is intentionally omitted, so we can focus on getting the
runtime part in before the feature freeze.
Just in case there is ever an issue with _posixsubprocess's use of
vfork() due to the complexity of using it properly and potential
directions that Linux platforms where it defaults to on could take, this
adds a failsafe so that users can disable its use entirely by setting
a global flag.
No known reason to disable it exists. But it'd be a shame to encounter
one and not be able to use CPython without patching and rebuilding it.
See the linked issue for some discussion on reasoning.
Also documents the existing way to disable posix_spawn.
Fix signal.NSIG value on FreeBSD to accept signal numbers greater
than 32, like signal.SIGRTMIN and signal.SIGRTMAX.
* Add Py_NSIG constant.
* Add pycore_signal.h internal header file.
* _Py_Sigset_Converter() now includes the range of valid signals in
the error message.
Similar to the rewrite of email/mime/image.py and associated test after the
deprecation of imghdr.py, thisrewrites email/mime/audio.py and associated
tests after the deprecation of sndhdr.py.
Closes#91885
The test relies on precision being set to 9, but some ways of
invoking this test leave it set to 28 instead. I don't know
exactly how it happens, but setting the precision directly should
make the behavior consistent.
Also inline necessary functionality from `sndhdr` into `email.mime.audio` for `MIMEAudio`.
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
In expression (?(group)...) an appropriate re.error is now
raised if the group number refers to not defined group.
Previously it raised RuntimeError: invalid SRE code.
* Stores all location info in linetable to conform to PEP 626.
* Remove column table from code objects.
* Remove end-line table from code objects.
* Document new location table format
larryhastings
Victor Stinner
Brandt Bucher
Serhiy Storchaka
slateny
Christian Heimes
Ethan Furman
Gregory P. Smith
Inada Naoki
Alexey Izbyshev
Paul Ganssle
cibofo
Irit Katriel
Vlad Hoi
Géry Ogam
Raymond Hettinger
DjMorgul
Michael J. Sullivan
Mark Shannon
Erlend Egeberg Aasland
Sam Denton
Kumar Aditya
Kabir Kwatra
kixorz
Zac Hatfield-Dodds
Thaddeus1499
Humbled Drugman
Abhigyan Bose
Toshio Kuratomi
Kossi GLOKPOR
Dennis Sweeney
Ma Lin
Samodya Abey
Carey Metcalfe
Thomas Cellerier
Hugo van Kemenade
Ruben Vorderman
Itai Steinherz
Shantanu
Ethan Smith
kbeldan
Thomas Miedema
Nikita Sobolev
themylogin
Jelle Zijlstra
Mark Dickinson
Eric V. Smith
Alex Waygood
Yiannis Hadjicharalambous
Antony Lee
David Hewitt
Brett Cannon
Matthew Rahtz
Petr Viktorin
Eisuke Kawashima
Yurii Karabas
Simon de Vlieger
Alexander Shadchin
Barry Warsaw
Pablo Galindo Salgado
Sam Ezeh
Erlend Egeberg Aasland
Iman Kermani
Nick