Fix clang ubsan (undefined behavior sanitizer) warnings in dictobject.c by
adjusting how the internal struct _dictkeysobject shared keys structure is
declared.
This remains ABI compatible. We get rid of the union at the end of the
struct being used for conveinence to avoid typecasting in favor of char[]
variable length array at the end of a struct. This is known to clang to be
used for variable sized objects and will not cause an undefined behavior
problem. Similarly, char arrays do not have strict aliasing undefined
behavior when cast.
PEP-007 does not currently list variable length arrays (VLAs) as allowed
in our subset of C99. If this turns out to be a problem, the fix to this is
to change the char `dk_indices[]` into `dk_indices[1]` and restore the
three size computation subtractions this change removes:
`- Py_MEMBER_SIZE(PyDictKeysObject, dk_indices)`
If this works as is I'll make a separate PR to update PEP-007.
(cherry picked from commit 397f1b28c4)
Setup modules are no longer built with -DPy_BUILD_CORE by default,
as using that flag may now require including additional internal-only header files.
Instead, only the modules that specifically need it use that setting.
(cherry picked from commit 063db62aab)
Co-authored-by: xdegaye <xdegaye@gmail.com>
as docstrings and translatable strings, and rejects
bytes literals and f-string expressions.
(cherry picked from commit 69524821a8)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
`test_urllib2net.OtherNetworkTests.test_sites_no_connection_close`
used `http://www.imdb.com/` but it is moved to https so the test is
not valid anymore. Skip test for the moment to allow CI to proceed.
(cherry picked from commit 36d56ea826)
Co-authored-by: INADA Naoki <methane@users.noreply.github.com>
In fact, we now require a newer Sphinx version because APIs have moved around.
(cherry picked from commit acfb087f9f)
Co-authored-by: Benjamin Peterson <benjamin@python.org>
Adds some working and markup fixes that I missed
in the initial commit for this issue.
(Follow-up to GH-6419)
(cherry picked from commit 1a5c4bdb6e)
Co-authored-by: Nick Coghlan <ncoghlan@gmail.com>
The pydoc CLI assumed -m pydoc would add the empty string
to sys.path, and hence got confused when it switched to
adding the full initial working directory instead.
This refactors the pydoc CLI path manipulation to be
more testable, and ensures it won't accidentally
remove the standard library directory containing
pydoc itself from sys.path.
(cherry picked from commit 82a9481059)
Co-authored-by: Nick Coghlan <ncoghlan@gmail.com>
The examples in argparse documentation use `error: too few arguments`
error message which was removed in this commit f97c59a in 2011.
(cherry picked from commit 04e8293465)
Co-authored-by: suic86 <marko.gabriel.cz@gmail.com>
Executors in concurrent.futures accepted tasks after executor was shutdown by interpreter exit. Tasks were left in PENDING state forever. This fix changes submit to instead raise a RuntimeError.
(cherry picked from commit c4b695f85e)
Co-authored-by: Mark Nemec <mrknmc@me.com>
This code doesn't have effect on the final result, but causes
GCC 8 warnings and can have an undefined behavior.
(cherry picked from commit 827d49f3cf)
The protocol parameter can be any protocol supported by the
pickle module.
(cherry picked from commit 2ef65f346a)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
When bpo-12015 got resolved by increasing the length of the
random string generated by _RandomNameSequence from six to eight
characters, the docstring of the class was not adjusted accordingly.
(cherry picked from commit 9c463ec88b)
Co-authored-by: Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de>
* bpo-33201: Modernize "Extension types" doc
* Split tutorial and other topics
* Some small fixes
* Address some review comments
* Rename noddy* to custom* and shoddy to sublist
* Fix markup
(cherry picked from commit 1d80a56173)
Co-authored-by: Antoine Pitrou <pitrou@free.fr>
An entry of None in sys.path_importer_cache represents a negative/missing finder for a path, so clearing it out makes sense.
(cherry picked from commit 9e2be60634)
* Add a test for frozen with unhashable field value.
* Improve a comment.
(cherry picked from commit 74940913d2)
Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>
This removes a hack and replaces it with a proper
mapping {'list': 'List', 'dict': 'Dict', ...}.
(cherry picked from commit 2a363d2930)
Co-authored-by: Ivan Levkivskyi <levkivskyi@gmail.com>
Different paths are executed for normal exit and for leaving
the 'async with' block with 'break', 'continue' or 'return'.
(cherry picked from commit 2eeac269dd)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Py_UNICODE is deprecated since Python 3.3.
But the deprecation is missed in the c-api/arg document.
(cherry picked from commit 42ec190761)
Co-authored-by: INADA Naoki <methane@users.noreply.github.com>
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Ethan Furman
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