Prior to this change the guard on an 'elif' used an assignment expression whose value was used in a later 'else' block, causing some confusion for people.
(Discussion on Twitter: https://twitter.com/brettsky/status/1153861041068994566.)
Automerge-Triggered-By: @brettcannon
(cherry picked from commit 544fa15ea1)
Co-authored-by: Tzu-ping Chung <uranusjr@gmail.com>
* Fix the formatting in the documentation of the tostring() functions.
* bpo-34160: Document that the tostring() and tostringlist() functions also preserve the attribute order now.
* bpo-34160: Add an explanation of how users should deal with the attribute order.
(cherry picked from commit a3697db010)
Co-authored-by: Stefan Behnel <stefan_ml@behnel.de>
Add a brief note to indicate that any new required attributes must go through the PEP process.
https://bugs.python.org/issue37284
(cherry picked from commit 52693c10e8)
Co-authored-by: Giovanni Cappellotto <gcappellotto@fb.com>
The `allow_abbrev` option for ArgumentParser is documented and intended to disable support for unique prefixes of --options, which may sometimes be ambiguous due to deferred parsing.
However, the initial implementation also broke parsing of grouped short flags, such as `-ab` meaning `-a -b` (or `-a=b`). Checking the argument for a leading `--` before rejecting it fixes this.
This was prompted by pytest-dev/pytestGH-5469, so a backport to at least 3.8 would be great 😄
And this is my first PR to CPython, so please let me know if I've missed anything!
https://bugs.python.org/issue26967
(cherry picked from commit dffca9e925)
Co-authored-by: Zac Hatfield-Dodds <Zac-HD@users.noreply.github.com>
Hi,
I've faced an issue w/ `mailbox.Maildir()`. The case is following:
1. I create a folder with `tempfile.TemporaryDirectory()`, so it's empty
2. I pass that folder path as an argument when instantiating `mailbox.Maildir()`
3. Then I receive an exception happening because "there's no such file or directory" (namely `cur`, `tmp` or `new`) during interaction with Maildir
**Expected result:** subdirs are created during `Maildir()` instance creation.
**Actual result:** subdirs are assumed as existing which leads to exceptions during use.
**Workaround:** remove the actual dir before passing the path to `Maildir()`. It will be created automatically with all subdirs needed.
**Fix:** This PR. Basically it adds creation of subdirs regardless of whether the base dir existed before.
https://bugs.python.org/issue30088
(cherry picked from commit e44184749c)
Co-authored-by: Sviatoslav Sydorenko <wk@sydorenko.org.ua>
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
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>
* Added documentation for textwrap.dedent behavior.
* Remove an obsolete note about pre-2.5 behavior from the docstring.
(cherry picked from commit eb97b9211e)
Co-authored-by: tmblweed <tmblweed@users.noreply.github.com>
Also updates some (unreleased) event names to be consistent with the others.
(cherry picked from commit 44f91c388a)
Co-authored-by: Steve Dower <steve.dower@python.org>
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 the Windows default event loop changed, `asyncio-policy.rst` was updated but `asyncio-eventloop.rst` was missed.
(cherry picked from commit 9ffca670ed)
Co-authored-by: Ben Darnell <ben@bendarnell.com>
… 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>
Add a missing single quote character in the documentation for `io.TextIOWrapper.reconfigure`.
(cherry picked from commit 35068bd059)
Co-authored-by: Harmon <Harmon758@gmail.com>
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>
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>
