* Fix issubclass() for None.
E.g. issubclass(type(None), int | None) returns now True.
* Fix issubclass() for virtual subclasses.
E.g. issubclass(dict, int | collections.abc.Mapping) returns now True.
* Fix crash in isinstance() if the check for one of items raises exception.
(cherry picked from commit 81989058de)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Fix incorrect handling of exceptions when interpreting dialect objects in
the csv module. Not clearing exceptions between calls to
PyObject_GetAttrString() causes assertion failures in pydebug mode (or with
assertions enabled).
Add a minimal test that would've caught this (passing None as dialect, or
any object that isn't a csv.Dialect subclass, which the csv module allows
and caters to, even though it is not documented.) In pydebug mode, the test
triggers the assertion failure in the old code.
Contributed-By: T. Wouters [Google]
(cherry picked from commit 0093876328)
Co-authored-by: T. Wouters <thomas@python.org>
Automerge-Triggered-By: GH:gpshead
Add testcleanup section to configparser and bz2 documentation which
removes temporary files created in the filesystem when 'make doctest'
is run.
(cherry picked from commit 48a5aa7f12)
Co-authored-by: Kevin Follstad <kfollstad@gmail.com>
* importlib.metadata is no longer provisional as of 3.10
* Add NEWS entry
(cherry picked from commit f6954cdfc5)
Co-authored-by: Barry Warsaw <barry@python.org>
Co-authored-by: Barry Warsaw <barry@python.org>
Fixes the misleading IsADirectoryError to be FileNotFoundError.
(cherry picked from commit 248173cc04)
Co-authored-by: andrei kulakov <andrei.avk@gmail.com>
As of 088a15c49d, lineno is None instead
of -1 if there is no line number.
Signed-off-by: Filipe Laíns <lains@riseup.net>.
(cherry picked from commit 91a8f8c16c)
Co-authored-by: Filipe Laíns <lains@riseup.net>
Co-authored-by: Filipe Laíns <lains@riseup.net>
In debug build failed tee.fromiterable() corrupted the linked list of all GC objects.
(cherry picked from commit f64de53ff0)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
(cherry picked from commit 17f94e2888)
Co-authored-by: andrei kulakov <andrei.avk@gmail.com>
* zlib uses an UINT32_MAX sliding window for the output buffer
These funtions have an initial output buffer size parameter:
- zlib.decompress(data, /, wbits=MAX_WBITS, bufsize=DEF_BUF_SIZE)
- zlib.Decompress.flush([length])
If the initial size > UINT32_MAX, use an UINT32_MAX sliding window, instead of clamping to UINT32_MAX.
Speed up when (the initial size == the actual size).
This fixes a memory consumption and copying performance regression in earlier 3.10 beta releases if someone used an output buffer larger than 4GiB with zlib.decompress.
Reviewed-by: Gregory P. Smith
(cherry picked from commit a9a69bb3ea)
Co-authored-by: Ma Lin <animalize@users.noreply.github.com>
The `try` statement was missing a colon and therefore was not exemplifying the correct `SyntaxError`.
(cherry picked from commit dcb1caef5b)
Co-authored-by: Rodrigo Girão Serrão <rodrigogiraoserrao@gmail.com>
I tried to be relatively thorough and give lots of links.
One reason is that this wasn't deprecated very long; also it seems people running into this tend to not be familiar with similar APIs.
(cherry picked from commit 29987f7265)
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Sync with importlib_metadata 4.6.
(cherry picked from commit efe7d08d17)
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
