They used to be shared, before 3.12. Returning to sharing them resolves a failure on Py_TRACE_REFS builds.
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Previously, copying a super object returned a copy of the instance
invoking super(). Pickling a super object could pickle the instance
invoking super() or fail, depending on its type and protocol.
Now deep copying returns a new super object and pickling pickles the super
object. Shallow copying returns the same super object.
This is an implementation of InterpreterPoolExecutor that builds on ThreadPoolExecutor.
(Note that this is not tied to PEP 734, which is strictly about adding a new stdlib module.)
Possible future improvements:
* support passing a script for the initializer or to submit()
* support passing (most) arbitrary functions without pickling
* support passing closures
* optionally exec functions against __main__ instead of the their original module
It is an alternate constructor which only accepts a single numeric argument.
Unlike to Decimal.from_float() it accepts also Decimal.
Unlike to the standard constructor, it does not accept strings and tuples.
It is an alternative constructor which only accepts a single numeric argument.
Unlike to Fraction.from_float() and Fraction.from_decimal() it accepts any
real numbers supported by the standard constructor (int, float, Decimal,
Rational numbers, objects with as_integer_ratio()).
Unlike to the standard constructor, it does not accept strings.
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Barry Warsaw <barry@python.org>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
The function now sets temporarily the LC_CTYPE locale to the locale
of the category that determines the requested value if the locales are
different and the resulting string is non-ASCII.
This temporary change affects other threads.
It can now have one of three forms:
* basename(argv0) -- for simple scripts
* python arv0 -- for directories, ZIP files, etc
* python -m module -- for imported modules
Co-authored-by: Alyssa Coghlan <ncoghlan@gmail.com>
Change the default multiprocessing start method away from fork to forkserver or spawn on the remaining platforms where it was fork. See the issue for context. This makes the default far more thread safe (other than for people spawning threads at import time... - don't do that!).
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
Co-authored-by: T. Wouters <thomas@python.org>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Hugo van Kemenade
Mark Shannon
Brian Schubert
Zhikang Yan
Victor Stinner
Shantanu
Eric Snow
Serhiy Storchaka
Jacob Walls
Savannah Ostrowski
Mikhail Efimov
Alex Waygood
Alyssa Coghlan
Jelle Zijlstra
monkeyman192
Adam Turner
Nice Zombies
Christian Clauss
Petr Viktorin
Gregory P. Smith
dgpb
Tian Gao
Donghee Na
Malcolm Smith
neonene
Bradley Reynolds
Rafael Fontenelle