It was added as part of #29222 to avoid running freeze tool tests on the
buildbots but the logic was wrong so it did not skip tests on typical posix
setup buildbots where the worker is launched from cron via an @reboot task and
thus have no USER environment variable. This uses the canonical
`getpass.getuser()` API rather than rolling its own attempt.
bpo-46576: bpo-46524: Disable compiler optimization within test_peg_generator. (#31015)
Disable compiler optimization within test_peg_generator.
This speed up test_peg_generator by always disabling compiler
optimizations by using -O0 or equivalent when the test is building its
own C extensions.
A build not using --with-pydebug in order to speed up test execution
winds up with this test taking a very long time as it would do
repeated compilation of parser C code using the same optimization
flags as CPython was built with.
This speeds the test up 6-8x on gps-raspbian.
Also incorporate's #31017's win32 conditional and flags.
After GH-15623 deleted `generrmap.c`, a related mak-file stopped working. The mak contains generrmap-related rules only so it should be removed altogether.
Further search for `errmap\.mak|generrmap` regex through content of CPython files shows no dangling reference left.
Since generrmap is already effectively removed, this pull request contains no blurp.
Barney Gale [Wed, 2 Feb 2022 12:38:25 +0000 (12:38 +0000)]
bpo-43012: remove `pathlib._Accessor` (GH-25701)
Per Pitrou:
> The original intent for the “accessor” thing was to have a variant that did all accesses under a filesystem tree in a race condition-free way using openat and friends. It turned out to be much too hairy to actually implement, so was entirely abandoned, but the accessor abstraction was left there.
- Lacking any internal purpose - '_NormalAccessor' is the only implementation
- Lacking any firm conceptual difference to `Path` objects themselves (inc. subclasses)
- Non-public, i.e. underscore prefixed - '_Accessor' and '_NormalAccessor'
- Unofficially used to implement customized `Path` objects, but once once [bpo-24132]() is addressed there will be a supported route for that.
adanhawth [Wed, 2 Feb 2022 02:38:15 +0000 (21:38 -0500)]
bpo-46602: Do not append conftest.c (GH-31062)
The heredoc creation statements use >> to append conftest.c. This can cause
tricky build issues if the file is not correctly removed prior to its
name being reused (such name is reused several times for different
contextual tests during the build). One such result from appending may
cause #include <ac_nonexistent.h> to persist when testing to acquire
PLATFORM_TRIPLET. This can then lead to downstream issues concerning SOABI.
Paul m. p. P [Tue, 1 Feb 2022 22:33:52 +0000 (23:33 +0100)]
bpo-14916: use specified tokenizer fd for file input (GH-31006)
@pablogsal, sorry i failed to rebase to main, so i recreated https://github.com/python/cpython/pull/22190#issuecomment-1024633392
> PyRun_InteractiveOne\*() functions allow to explicitily set fd instead of stdin.
but stdin was hardcoded in readline call.
> This patch does not fix target file for prompt unlike original bpo one : prompt fd is unrelated to tokenizer source which could be read only. It is more of a bugfix regarding the docs : actual documentation say "prompt the user" so one would expect prompt to go on stdout not a file for both PyRun_InteractiveOne\*() and PyRun_InteractiveLoop\*().
Victor Stinner [Tue, 1 Feb 2022 17:12:26 +0000 (18:12 +0100)]
bpo-46600: Fix test_gdb.test_pycfunction() for clang -Og (GH-31058)
Fix test_gdb.test_pycfunction() for Python built with clang -Og.
Tolerate inlined functions in the gdb traceback.
When _testcapimodule.c is built by clang -Og, _null_to_none() is
inlined in meth_varargs() and so gdb returns _null_to_none() as
the frame #1. If it's not inlined, meth_varargs() is the frame #1.
Petr Viktorin [Tue, 1 Feb 2022 10:22:34 +0000 (11:22 +0100)]
bpo-46355: What's New: Note that PyFrameObject are private (GH-31032)
This adds a slightly more detailed explanation of the change.
The most important point is that the changed/removed fields
were "subject to change" to begin with.
Fix a Python crash in test_lib2to3 when using Python built in debug
mode: limit the recursion limit.
The test_all_project_files() test of test_lib2to3 now uses the
test.support.infinite_recursion() context manager when processing the
infinite_recursion.py file to prevent a crash when Python is built in
debug mode.
The two test_all_project_files() tests now use subTest() and log the
refactored/parsed filename (if test_lib2to3 is run in verbose mode).
Remove the PyHeapType_GET_MEMBERS() macro. It was exposed in the
public C API by mistake, it must only be used by Python internally.
Use the PyTypeObject.tp_members member instead.
Rename PyHeapType_GET_MEMBERS() to _PyHeapType_GET_MEMBERS() and move
it to the internal C API.
Victor Stinner [Thu, 27 Jan 2022 20:23:22 +0000 (21:23 +0100)]
bpo-40170: Move _Py_GetAllocatedBlocks() to pycore_pymem.h (GH-30943)
Move _Py_GetAllocatedBlocks() and _PyObject_DebugMallocStats()
declarations to pycore_pymem.h. These functions are related to memory
allocators, not to the PyObject structure.
Serhiy Storchaka [Thu, 27 Jan 2022 12:34:55 +0000 (14:34 +0200)]
bpo-44791: Fix substitution of ParamSpec in Concatenate with different parameter expressions (GH-27518)
* Substitution with a list of types returns now a tuple of types.
* Substitution with Concatenate returns now a Concatenate with
concatenated lists of arguments.
* Substitution with Ellipsis is not supported.
Illia Volochii [Thu, 27 Jan 2022 08:39:09 +0000 (10:39 +0200)]
bpo-42982: Improve the text on suggested number of iterations of PBKDF2 (GH-24276)
Less specific number wording (as there is no one right number - the old 100k is too big for some applications and woefully small for others). We now link to NIST SP 800-132 to tell people what to read in there on how to decide for their application.
Co-authored-by: Gregory P. Smith <greg@krypto.org> [Google]
We're deferring this change until 3.12 while upstream projects that use
the legacy assertion method names are fixed. See the issue for links
to the discussion. Many upstream projects now have issues and PRs
filed.
Terry Jan Reedy [Thu, 27 Jan 2022 03:16:31 +0000 (22:16 -0500)]
bpo-45296: Clarify close, quit, and exit in IDLE (GH-30936)
In the File menu, 'Close' and 'Exit' are now 'Close Window' (the current
one) and 'Exit' is now 'Exit IDLE' (by closing all windows).
In Shell, 'quit()' and 'exit()' mean 'close Shell'.
If there are no other windows, this also exits IDLE.
bpo-46539: Pass status of special typeforms to forward references (GH-30926)
Previously this didn't matter because there weren't any valid code paths
that could trigger a type check with a special form, but after the bug
fix for `Annotated` wrapping special forms it's now possible to annotate
something like `Annotated['ClassVar[int]', (3, 4)]`. This change would
also be needed for proposed future changes, such as allowing `ClassVar`
and `Final` to nest each other in dataclasses.
Mateusz Łoskot [Wed, 26 Jan 2022 23:49:06 +0000 (00:49 +0100)]
bpo-46502: Remove "How do I tell incomplete input" from FAQ (GH-30925)
Since,
- Py_CompileString no longer allows to distinguish "incomplete input"
from "invalid input"
- there is no alternative solution available from the Python C API
due to how the new parser works (rewritten in 3.9)
- the only supported way is to manually import the codeop module from C
and use its API as IDLE does, and accept its own complications
it is desirable to remove this Q&A from the official FAQ.