The same change was made, and for the same reason, by ``argparse`` back in
2017. The ``textwrap`` module is only used when printing help text, so most
invocations will never need it imported.
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
``gettext`` is often imported in programs that may not end up translating
anything. In fact, the ``struct`` module already has a delayed import when
parsing ``GNUTranslations`` to speed up the no ``.mo`` files case. The re module
is also used in the same situation, but behind a function chain only
called by ``GNUTranslations``.
Cache the compiled regex globally the first time it is used. The
finditer function is converted to a method call on the compiled
object which is slightly more efficient, and necessary for the
delayed re import.
Email generators using email.policy.default could incorrectly omit the
quote ('"') characters from a quoted-string during header refolding,
leading to invalid address headers and enabling header spoofing. This
change restores the quote characters on a bare-quoted-string as the
header is refolded, and escapes backslash and quote chars in the string.
* Release the enter frame reference within bdb callback
* đđ€ Added by blurb_it.
---------
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
There is a race condition between PyMem_SetAllocator() and
PyMem_RawMalloc()/PyMem_RawFree(). While PyMem_SetAllocator() write
is protected by a lock, PyMem_RawMalloc()/PyMem_RawFree() reads are
not protected by a lock. PyMem_RawMalloc()/PyMem_RawFree() can be
called with an old context and the new function pointer.
On a release build, it's not an issue since the context is not used.
On a debug build, the debug hooks use the context and so can crash.
This reduces the import time of the `csv` module by up to five times,
by importing `re` on demand.
In particular, the `re` module is no more implicitly exposed as `csv.re`.
* gh-128916: Do not set `SO_REUSEPORT` on non-`AF_INET*` sockets
Do not attempt to set ``SO_REUSEPORT`` on sockets of address familifies other
than ``AF_INET`` and ``AF_INET6``, as it is meaningless with these address
families, and the call with fail with Linux kernel 6.12.9 and newer.
* Apply suggestions from code review
Co-authored-by: Vinay Sajip <vinay_sajip@yahoo.co.uk>
---------
Co-authored-by: Vinay Sajip <vinay_sajip@yahoo.co.uk>
In the free threading build, the per thread reference counting uses a
unique id for some objects to index into the local reference count
table. Use 0 instead of -1 to indicate that the id is not assigned. This
avoids bugs where zero-initialized heap type objects look like they have
a unique id assigned.
Implement set_name() with SetThreadDescription() and _get_name() with
GetThreadDescription(). If SetThreadDescription() or
GetThreadDescription() is not available in kernelbase.dll, delete the
method when the _thread module is imported.
Truncate the thread name to 32766 characters.
Co-authored-by: Eryk Sun <eryksun@gmail.com>
tracemalloc_alloc(), tracemalloc_realloc(), tracemalloc_free(),
_PyTraceMalloc_TraceRef() and _PyTraceMalloc_GetMemory() now check
'tracemalloc_config.tracing' after calling TABLES_LOCK().
_PyTraceMalloc_TraceRef() now always returns 0.
* Fix a deprecation warning for using importlib.resources.abc.ResourceReader.
* Fix an import warning when importing readline (if it has not yet been imported).
Modifying locale-related environment variables in `Lib/test/test_builtin.py`,
`Lib/test/test_io.py` and `Lib/test/test_locale.py` is now achieved by using
an `EnvironmentVarGuard` context instead of an explicit `try-finally` block.
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Chris Markiewicz <effigies@gmail.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Importing `pickle` is now roughly 25% faster.
Importing the `re` module is no longer needed and
thus `re` is no more implicitly exposed as `pickle.re`.
---------
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Add the following methods:
* assertHasAttr() and assertNotHasAttr()
* assertIsSubclass() and assertNotIsSubclass()
* assertStartsWith() and assertNotStartsWith()
* assertEndsWith() and assertNotEndsWith()
Also improve error messages for assertIsInstance() and
assertNotIsInstance().
- Add tests for durations of invalid types.
- Add tests for `int` and `float` durations, including signed zeroes durations.
- Add tests for nonzero very small durations and durations close to the clock resolution.
---------
Co-authored-by: Victor Stinner <vstinner@python.org>
