Don't define shared memory block's name in test_shared_memory_across_processes():
use SharedMemory(create=True) instead.
(cherry picked from commit caa3ef284a2e5e5b9bdd6a9e619804122c842d80)
bpo-40412: Nullify inittab_copy during finalization (GH-19746)
Otherwise we leave a dangling pointer to free'd memory. If we
then initialize a new interpreter in the same process and call
PyImport_ExtendInittab, we will (likely) crash when calling
PyMem_RawRealloc(inittab_copy, ...) since the pointer address
is bogus.
Pablo Galindo [Fri, 1 May 2020 14:18:27 +0000 (15:18 +0100)]
[3.8] bpo-39562: Prevent collision of future and compiler flags (GH-19230) (GH-19835)
The constant values of future flags in the __future__ module
is updated in order to prevent collision with compiler flags.
Previously PyCF_ALLOW_TOP_LEVEL_AWAIT was clashing
with CO_FUTURE_DIVISION..
(cherry picked from commit 4454057269b995341b04d13f0bf97f96080f27d0)
Zachary Ware [Mon, 27 Apr 2020 02:45:05 +0000 (21:45 -0500)]
[3.8] bpo-38387: Formally document PyDoc_STRVAR and PyDoc_STR macros (GH-16607) (GH-19727)
Adds a short description of `PyDoc_STRVAR` and `PyDoc_STR` to "Useful macros" section of C-API docs.
Currently, there is [one lone mention](https://docs.python.org/3/c-api/module.html?highlight=pydoc_strvarGH-c.PyModuleDef) in the C-API reference, despite the fact that `PyDoc_STRVAR` is ubiquitous to `Modules/`.
Additionally, this properly uses `c:macro` within `Doc/c-api/module.rst` to link.
(cherry picked from commit b54e46c)
If _PyCode_InitOpcache() fails in _PyEval_EvalFrameDefault(), use
"goto exit_eval_frame;" rather than "return NULL;" to exit the
function in a consistent state. For example, tstate->frame is now
reset properly.
bpo-40260: Remove unnecessary newline in compile() call (GH-19641)
Because some people subclass this class and call undocumented methods, and we don't want to break them.
(cherry picked from commit 39652cd8bdf7c82b7c6055089a4ed90ee546a448)
Co-authored-by: Anthony Sottile <asottile@umich.edu>
bpo-38360: macOS: support alternate form of -isysroot flag (GH-16480)
It is possible to use either '-isysroot /some/path' (with a space) or
'-isysroot/some/path' (no space in between). Support both forms in
places where special handling of -isysroot is done, rather than just
the first form. Co-authored-by: Ned Deily <nad@python.org>
(cherry picked from commit b310700976524b4b99ee319c947ca40468716fc9)
Small improvements to the recipes and examples. (GH-19635) (GH-19638)
* Add underscores to long numbers to improve readability
* Use bigger dataset in the bootstrapping example
* Convert single-server queue example to more useful multi-server queue
(cherry picked from commit d3a8d616faf3364b22fde18dce8c168de9368146)
bpo-39285: Clarify example for PurePath.match (GH-19458)
Fixes Issue39285
The example incorrectly returned True for match.
Furthermore the example is ambiguous in its usage of PureWindowsPath.
Windows is case-insensitve, however the underlying match functionality
utilizes fnmatch.fnmatchcase.
The names "member" and "container" for the arguments are also used in the module and shown with the help() function, and are immediately understandable in this context, contrary to "first" and "second".
(cherry picked from commit a388bbd3f129364c39843f63e92f08bc53c71905)
Co-authored-by: Christoph Zwerschke <cito@online.de>
* bpo-38502: regrtest uses process groups if available (GH-16829)
test.regrtest now uses process groups in the multiprocessing mode
(-jN command line option) if process groups are available: if
os.setsid() and os.killpg() functions are available.
* bpo-37957: Allow regrtest to receive a file with test (and subtests) to ignore (GH-16989)
When building Python in some uncommon platforms there are some known tests that will fail. Right now, the test suite has the ability to ignore entire tests using the -x option and to receive a filter file using the --matchfile filter. The problem with the --matchfile option is that it receives a file with patterns to accept and when you want to ignore a couple of tests and subtests, is too cumbersome to lists ALL tests that are not the ones that you want to accept and he problem with -x is that is not easy to ignore just a subtests that fail and the whole test needs to be ignored.
For these reasons, add a new option to allow to ignore a list of test and subtests for these situations.
[3.8] bpo-40126: Fix reverting multiple patches in unittest.mock. (GH-19351) (GH-19483)
Patcher's __exit__() is now never called if its __enter__() is failed.
Returning true from __exit__() silences now the exception.
(cherry picked from commit 4b222c9491d1700e9bdd98e6889b8d0ea1c7321e)
bpo-40214: Temporarily disable a ctypes test (GH-19404)
Only one particular sub-test of
ctypes.test.test_loading.test_load_dll_with_flags is disabled, which
caused failures on Azure Pipelines CI.
(cherry picked from commit f407e209c1e35b64835f73e7e7ca23e33817e9fe)
If fork was not called by a thread spawned by threading.Thread,
threading._after_fork() now creates a _MainThread instance for
_main_thread, instead of a _DummyThread instance.
(cherry picked from commit d8ff44ce4cd6f3ec0fab5fccda6bf14afcb25c30)
Co-authored-by: Victor Stinner <vstinner@python.org>
lib2to3: Support named assignment expressions (GH-12702)
There are two copies of the grammar -- the one used by Python itself as
Grammar/Grammar, and the one used by lib2to3 which has necessarily diverged at
Lib/lib2to3/Grammar.txt because it needs to support older syntax an we want it
to be reasonable stable to avoid requiring fixer rewrites.
This brings suport for syntax like `if x:= foo():` to match what the live
Python grammar does.
This should've been added at the time of the walrus operator itself, but lib2to3 being
independent is often overlooked. So we do consider this a bugfix rather than enhancement.
(cherry picked from commit 3c3aa4516c70753de06bb142b6793d01330fcf0f)
The AbstractBasicAuthHandler class of the urllib.request module uses
an inefficient regular expression which can be exploited by an
attacker to cause a denial of service. Fix the regex to prevent the
catastrophic backtracking. Vulnerability reported by Ben Caller
and Matt Schwager.
AbstractBasicAuthHandler of urllib.request now parses all
WWW-Authenticate HTTP headers and accepts multiple challenges per
header: use the realm of the first Basic challenge.
Co-Authored-By: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>
(cherry picked from commit 0b297d4ff1c0e4480ad33acae793fbaf4bf015b4)
bpo-38527: fix configure script for Solaris (GH-16845)
On Solaris, the regular "grep" command may be an old version that fails to search a binary file. We need to use the correct command (ggrep, in our case), which is found by the configure script earlier.
Handle when IOCTL_VM_SOCKETS_GET_LOCAL_CID does not exist in "socket" (GH-19270)
Running `test_socket` or anything that depends on it (like python -m
test.pythoninfo) crashes if IOCTL_VM_SOCKETS_GET_LOCAL_CID does not
exist in the socket module.
bpo-40019: Skip test_gdb if Python was optimized (GH-19081)
test_gdb now skips tests if it detects that gdb failed to read debug
information because the Python binary is optimized.
(cherry picked from commit 7bf069b6110278102c8f4719975a5eb5a5af25f9)
Co-authored-by: Victor Stinner <vstinner@python.org>
bpo-38002: Use False/True for IDLE pyshell bools (GH-19203)
Change 0/1 assignments to 'executing', 'canceled', 'reading', 'endoffile'.
These are not used outside of pyshell. Other bools already use False/True.
Add comment about int needed for Windows call.
Remove self.more, unused in idlelib and code.InteractiveInterpreter.
The latter uses 'more' as a local.
(cherry picked from commit 34a49aa3e4d023b5f9e9029f4f1ec68f1a8a8120)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
bpo-1812: Fix newline conversion when doctest.testfile loads from a package whose loader has a get_data method (GH-17385)
This pull request fixes the newline conversion bug originally reported in bpo-1812. When that issue was originally submitted, the open builtin did not default to universal newline mode; now it does, which makes the issue fix simpler, since the only code path that needs to be changed is the one in doctest._load_testfile where the file is loaded from a package whose loader has a get_data method.
(cherry picked from commit e0b8101492f6c61dee831425b4d3dae39a953599)
Co-authored-by: Peter Donis <peterdonis@alum.mit.edu>