[3.8] bpo-39546: argparse: Honor allow_abbrev=False for specified prefix_chars (GH-18337) (GH-18543)
When `allow_abbrev` was first added, disabling the abbreviation of
long options broke the grouping of short flags ([bpo-26967](https://bugs.python.org/issue26967)). As a fix, b1e4d1b603 (contained in v3.8) ignores `allow_abbrev=False` for a
given argument string if the string does _not_ start with "--"
(i.e. it doesn't look like a long option).
This fix, however, doesn't take into account that long options can
start with alternative characters specified via `prefix_chars`,
introducing a regression: `allow_abbrev=False` has no effect on long
options that start with an alternative prefix character.
The most minimal fix would be to replace the "starts with --" check
with a "starts with two prefix_chars characters". But
`_get_option_tuples` already distinguishes between long and short
options, so let's instead piggyback off of that check by moving the
`allow_abbrev` condition into `_get_option_tuples`.
The change broke the backwards compatibility of parsing behavior in a
patch release of Python (3.8.1). A decision was taken to revert this
patch in 3.8.2.
In https://bugs.python.org/issue27657 it was decided that the previous
behavior like
[3.8] bpo-39606: allow closing async generators that are already closed (GH-18475) (GH-18501)
The fix for [bpo-39386](https://bugs.python.org/issue39386) attempted to make it so you couldn't reuse a
agen.aclose() coroutine object. It accidentally also prevented you
from calling aclose() at all on an async generator that was already
closed or exhausted. This commit fixes it so we're only blocking the
actually illegal cases, while allowing the legal cases.
The new tests failed before this patch. Also confirmed that this fixes
the test failures we were seeing in Trio with Python dev builds:
https://github.com/python-trio/trio/pull/1396
bpo-21016: pydoc and trace use sysconfig (GH-18476)
bpo-21016, bpo-1294959: The pydoc and trace modules now use the
sysconfig module to get the path to the Python standard library, to
support uncommon installation path like /usr/lib64/python3.9/ on
Fedora.
These changes will not change code, but they will make it much easier to check for errors in consts
(cherry picked from commit e6be9b59a911626d6597fe148c32f0342bd2bd24)
bpo-39299: Add more tests for mimetypes and its cli. (GH-17949)
* Add tests for case insensitive check of types and extensions as fallback.
* Add tests for data url with no comma.
* Add tests for read_mime_types.
* Add tests for the mimetypes cli and refactor __main__ code to private function.
* Restore mimetypes.knownfiles value at the end of the test.
(cherry picked from commit d8efc1495194228c3a4cd472200275d6491d8e2d)
bpo-38374: Remove weakref.ReferenceError from docs (GH-18452)
Reflecting changes to the code, removed weakref.ReferenceError from weakref.rst and exceptions.rst.
Issue submitter provided evidence that the `weakref.ReferenceError` alias for `ReferenceError` was removed from the code in 2007. Working with @gvanrossum at PyCascades CPython sprint we looked at the code and confirmed that `weakref.ReferenceError` was no longer in `weakref.py`.
Based on that analysis I removed references `weakref.ReferenceError` from the two documents where it was still being referenced: `weakref.rst` and `exceptions.rst`.
Issue3950: Fix docs for default locale used by gettext to match implementation (GH-18435)
documentation for default locale directory Doc/library/gettext.rst changed to match gettext implementation line 63.
(cherry picked from commit d68e0a8a165761604e820c8cb4f20abc735e717f)
Co-authored-by: Carl <Carl-Ty@users.noreply.github.com>
Doc: sys.__unraisablehook__ and bytearray.hex separators are new in 3.8 (GH-17884)
Minor fix in documentation:
- `sys.__unraisablehook__` is new in version 3.8
- Optional `sep` and `bytes_per_sep` parameters for `bytearray.hex` is also supported in Python 3.8 (just like `bytes.hex`)
(cherry picked from commit 0edc2c7678266c39a7ceb2df885cb050f887e32b)
To print the exports to stdout, the gendef command requires the option "-". Without this option, no output is generated.
(cherry picked from commit 2545fa87628b4caca519da8aeb0eeef368b9dc0d)
bpo-39274: Ensure Fraction.__bool__() returns a bool (GH-18017)
Some numerator types used (specifically NumPy) decides to not
return a Python boolean for the "a != b" operation. Using the equivalent
call to bool() guarantees a bool return also for such types.
(cherry picked from commit 427c84f13f7719e6014a21bd1b81efdc02a046fb)
Co-authored-by: Sebastian Berg <sebastian@sipsolutions.net>
closes bpo-39510: Fix use-after-free in BufferedReader.readinto() (GH-18295)
When called on a closed object, readinto() segfaults on account
of a write to a freed buffer:
==220553== Process terminating with default action of signal 11 (SIGSEGV): dumping core
==220553== Access not within mapped region at address 0x2A
==220553== at 0x48408A0: memmove (vg_replace_strmem.c:1272)
==220553== by 0x58DB0C: _buffered_readinto_generic (bufferedio.c:972)
==220553== by 0x58DCBA: _io__Buffered_readinto_impl (bufferedio.c:1053)
==220553== by 0x58DCBA: _io__Buffered_readinto (bufferedio.c.h:253)
Adds an additional assertion check based on a race condition for `test__xxsubinterpreters.DestroyTests.test_still_running` discovered in the bpo issue.
bpo-38792: Remove IDLE shell calltip before new prompt. (GH-17150)
Previously, a calltip might be left after SyntaxError, KeyboardInterrupt, or Shell Restart.
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu> Co-authored-by: Tal Einat <taleinat+github@gmail.com>
(cherry picked from commit bfdeaa37b3df7466624c17f9450d2bd1c3d95edf)
bpo-39502: Skip test_zipfile.test_add_file_after_2107() on AIX (GH-18282)
Skip test_zipfile.test_add_file_after_2107() if time.localtime()
fails with OverflowError. It is the case on AIX 6.1 for example.
(cherry picked from commit c232c9110cfefa0935cbf158e35e91746a8a9361)
Co-authored-by: Victor Stinner <vstinner@python.org>
bpo-39485: fix corner-case in method-detection of mock (GH-18255)
Replace check for whether something is a method in the mock module. The
previous version fails on PyPy, because there no method wrappers exist
(everything looks like a regular Python-defined function). Thus the
isinstance(getattr(result, '__get__', None), MethodWrapperTypes) check
returns True for any descriptor, not just methods.
This condition could also return erroneously True in CPython for
C-defined descriptors.
Instead to decide whether something is a method, just check directly
whether it's a function defined on the class. This passes all tests on
CPython and fixes the bug on PyPy.
(cherry picked from commit a327677905956ae0b239ff430a1346dfe265709e)
Co-authored-by: Carl Friedrich Bolz-Tereick <cfbolz@gmx.de> Co-authored-by: Carl Friedrich Bolz-Tereick <cfbolz@gmx.de>
XFS filesystem is limited to 32-bit timestamp, but the utimensat()
syscall doesn't fail. Moreover, there is a VFS bug which returns
a cached timestamp which is different than the value on disk.
bpo-39153: Clarify C API *SetItem refcounting semantics (GH-18220)
Some of the *SetItem methods in the C API steal a reference to the
given value. This annotates the better behaved ones to assure the
reader that these are not the ones with the inconsistent behaviour.
bpo-38883: Don't use POSIX `$HOME` in `pathlib.Path.home/expanduser` on Windows (GH-17961)
In bpo-36264 os.path.expanduser was changed to ignore HOME on Windows.
Path.expanduser/home still honored HOME despite being documented as behaving the same
as os.path.expanduser. This makes them also ignore HOME so that both implementations
behave the same way again.
(cherry picked from commit c45a2aa9e255b5c7c211faa79f6b23895b64ab27)
Co-authored-by: Christoph Reiter <reiter.christoph@gmail.com>
bpo-36018: Minor fixes to the NormalDist() examples and recipes. (GH-18226) (GH-18227)
* Change the source for the SAT data to a primary source.
* Fix typo in the standard deviation
* Clarify that the binomial probabalities are just for the Python room.
(cherry picked from commit 01bf2196d842fc20667c5336e0a7a77eb4fdc25c)
Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com> Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
bpo-39392: Turtle overlap fill depends on OS (GH-18223)
Whether or not overlap regions for self-intersecting polygons
or multiple shapes are filled depends on the operating system graphics,
typeof overlap, and number of overlaps.
(cherry picked from commit 2824c45a0a020f12f27da7e7162e8636c21bf869)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
bpo-38473: Handle autospecced functions and methods used with attach_mock (GH-16784) (GH-18167)
If an autospecced object is attached using attach_mock the
child would be a function with mock object as attribute from
which signature has to be derived.
bpo-39430: Fix race condition in lazy imports in tarfile. (GH-18161)
Use `from ... import ...` to ensure module is fully loaded before accessing its attributes.
(cherry picked from commit 9017e0bd5e124ae6d2ed94b9e9cacb2e86270980)
* Add test for nested async decorator patch.
* Add test for side_effect and wraps with a function.
* Add test for side_effect with an exception in the iterable.
(cherry picked from commit 54f743eb315f00b0ff45e115dde7a5d506034153)
bpo-39426: Fix outdated default and highest protocols in docs (GH-18154)
Some portions of the pickle documentation hadn't been updated for the pickle protocol changes in Python 3.8 (new protocol 5, default protocol 4). This PR fixes those docs.
Alex Rebert [Thu, 23 Jan 2020 23:31:29 +0000 (18:31 -0500)]
[3.8] bpo-35182: fix communicate() crash after child closes its pipes (GH-18117) (GH-18148)
When communicate() is called in a loop, it crashes when the child process
has already closed any piped standard stream, but still continues to be running
IDLE does not pass a non-default _synchre in any of its calls to
pyparse.find_good_parse_start.
(cherry picked from commit f9e07e116c32b6dc4561d0bdeb452ccde13b0e7c)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
projects / thirdparty / Python / cpython.git / log
