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>
Returns NotImplemented for timedelta and time in __eq__ for different types in Python implementation, which matches the C implementation.
This also adds tests to enforce that these objects will fall back to the right hand side's __eq__ and/or __ne__ implementation.
bpo-37579
(cherry picked from commit e6b46aafad)
Co-authored-by: Xtreak <tir.karthi@gmail.com>
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>
After fcf1d00, IDLE startup failed with python compiled without docstrings.
(cherry picked from commit 6aeb2fe606)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
test_ssl.test_pha_required_nocert() now uses
support.catch_threading_exception() to ignore the expected SSLError
in ConnectionHandler of ThreadedEchoServer (it is only raised
sometimes on Windows).
(cherry picked from commit 73ea54620a)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Replace PyLong_FromLong() with PyLong_FromSize_t():
SSL_CTX_get_num_tickets() return type is size_t.
https://bugs.python.org/issue37120
(cherry picked from commit 76611c7c0a)
Co-authored-by: Victor Stinner <vstinner@redhat.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>
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