In case if only True/False be supported as boolean arguments in future,
we should continue to support 1/0 here.
(cherry picked from commit 922a6cf6c2)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
bpo-40882: Fix a memory leak in SharedMemory on Windows (GH-20684)
In multiprocessing.shared_memory.SharedMemory(), the temporary view
returned by MapViewOfFile() should be unmapped when it is no longer
needed.
(cherry picked from commit 85c128e34d)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
Without releasing the GIL calls to termios APIs might block the entire interpreter.
(cherry picked from commit 959ba45d75)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
gh-99337: Fix compile errors with gcc 12 on macOS (GH-99470)
Fix a number of compile errors with GCC-12 on macOS:
1. In pylifecycle.c the compile rejects _Pragma within a declaration
2. posixmodule.c was missing a number of ..._RUNTIME macros for non-clang on macOS
3. _ctypes assumed that __builtin_available is always present on macOS
(cherry picked from commit cdde29dde9)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
Before python3.11, when in a venv the zip path is calculated
from prefix on POSIX platforms. In python3.11 the behavior is
accidentally changed to calculating from default prefix. This
change will break venv created from a non-installed python
with a stdlib zip file. This commit restores the behavior back
to before python3.11.
(cherry picked from commit e3d4fed074)
Co-authored-by: Kai Zhang <kylerzhang11@gmail.com>
Improves the docstring on signal.strsignal to make it explain when it returns a message, None, or when it raises ValueError.
Closes GH-98930
Co-authored-by: Gregory P. Smith <greg@krypto.org>.
(cherry picked from commit 88385b8564)
Co-authored-by: ram vikram singh <ramvikrams243@gmail.com>
Check to see if `base_executable` exists. If it does not, attempt
to use known alternative names of the python binary to find an
executable in the path specified by `home`.
If no alternative is found, previous behavior is preserved.
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
(cherry picked from commit c41b13d39c)
Co-authored-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
The Py_CLEAR(), Py_SETREF() and Py_XSETREF() macros now only evaluate
their argument once. If an argument has side effects, these side
effects are no longer duplicated.
Add test_py_clear() and test_py_setref() unit tests to _testcapi.
(cherry picked from commit c03e05c2e7)
In very rare circumstances the JUMP opcode could be confused with the
argument of the opcode in the "then" part which doesn't end with the
JUMP opcode. This led to incorrect detection of the final JUMP opcode
and incorrect calculation of the size of the subexpression.
NOTE: Changed return value of functions _validate_inner() and
_validate_charset() in Modules/_sre/sre.c. Now they return 0 on success,
-1 on failure, and 1 if the last op is JUMP (which usually is a failure).
Previously they returned 1 on success and 0 on failure.
(cherry picked from commit e9ac890c02)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
On macOS, fix a crash in syslog.syslog() in multi-threaded
applications. On macOS, the libc syslog() function is not
thread-safe, so syslog.syslog() no longer releases the GIL to call
it.
(cherry picked from commit d4b9166385)
Co-authored-by: Victor Stinner <vstinner@python.org>
Reason: we were too hasty in deprecating this.
We shouldn't deprecate it before we have a replacement.
(cherry picked from commit 09de8d7aaf)
Co-authored-by: Guido van Rossum <guido@python.org>
The macOS 13 SDK includes support for the `mkfifoat` and `mknodat` system calls.
Using the `dir_fd` option with either `os.mkfifo` or `os.mknod` could result in a
segfault if cpython is built with the macOS 13 SDK but run on an earlier
version of macOS. Prevent this by adding runtime support for detection of
these system calls ("weaklinking") as is done for other newer syscalls on
macOS.
(cherry picked from commit 6d0a0191a4)
Co-authored-by: Ned Deily <nad@python.org>
Evil code could cause fut_callbacks to be cleared when PyObject_RichCompareBool is called.
(cherry picked from commit 63780f4599)
Co-authored-by: Guido van Rossum <guido@python.org>
Fix the Python path configuration used to initialized sys.path at
Python startup. Paths are no longer encoded to UTF-8/strict to avoid
encoding errors if it contains surrogate characters (bytes paths are
decoded with the surrogateescape error handler).
getpath_basename() and getpath_dirname() functions no longer encode
the path to UTF-8/strict, but work directly on Unicode strings. These
functions now use PyUnicode_FindChar() and PyUnicode_Substring() on
the Unicode path, rather than strrchr() on the encoded bytes string.
(cherry picked from commit 9f2f1dd131)
Co-authored-by: Victor Stinner <vstinner@python.org>
- On WASI `ENOTCAPABLE` is now mapped to `PermissionError`.
- The `errno` modules exposes the new error number.
- `getpath.py` now ignores `PermissionError` when it cannot open landmark
files `pybuilddir.txt` and `pyenv.cfg`.
Automate WASM build with a new Python script. The script provides
several build profiles with configure flags for Emscripten flavors
and WASI. The script can detect and use Emscripten SDK and WASI SDK from
default locations or env vars.
``configure`` now detects Node arguments and creates HOSTRUNNER
arguments for Node 16. It also sets correct arguments for
``wasm64-emscripten``.
Fix the faulthandler implementation of faulthandler.register(signal,
chain=True) if the sigaction() function is not available: don't call
the previous signal handler if it's NULL.
(cherry picked from commit c580a81af9)
Co-authored-by: Victor Stinner <vstinner@python.org>
