gh-78889: Stop IDLE Shell freezes from sys.stdout.shell.xyz (GH-121876)
Problem occurred when attribute xyz could not be pickled.
Since this is not trivial to selectively fix, block all
attributes (other than 'width'). IDLE does not access them
and they are private implementation details.
(cherry picked from commit 58753f33e4)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
The object's inline values may be marked invalid if the materialized
dict was already initialized and then deleted.
(cherry picked from commit 162b41f577)
Co-authored-by: Sam Gross <colesbury@gmail.com>
When using the ** operator or pow() with Fraction as the base
and an exponent that is not rational, a float, or a complex, the
fraction is no longer converted to a float.
(cherry picked from commit b9965ef282)
Co-authored-by: Joshua Herman <30265+zitterbewegung@users.noreply.github.com>
console.compile with the "single" param throws an exception when
there are multiple statements, never allowing to adding newlines
to a pasted code block (gh-121610)
This adds a few extra checks to allow extending when in an indented
block, and tests for a few examples.
(cherry picked from commit 7d111dac16)
Co-authored-by: saucoide <32314353+saucoide@users.noreply.github.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
The fallback repl does not support "exit" without parentheses, so the
test would hang until the timeout expired.
(cherry picked from commit 4134261ab8)
Co-authored-by: Sam Gross <colesbury@gmail.com>
This avoids messages like:
ThreadSanitizer: starting new threads after multi-threaded fork is not
supported. Dying (set die_after_fork=0 to override)
(cherry picked from commit 82a4dac9f6)
Co-authored-by: Sam Gross <colesbury@gmail.com>
See 6b98b274b6 for an explanation of the problem and solution. Here I've applied the solution to channels.
(cherry picked from commit 8b209fd4f8, AKA gh-121805)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
Any cross-interpreter mechanism for passing objects between interpreters must be very careful to respect isolation, even when the object is effectively immutable (e.g. int, str). Here this especially relates to when an interpreter sends one of its objects, and then is destroyed while the inter-interpreter machinery (e.g. queue) still holds a reference to the object.
When I added interpreters.Queue, I dealt with that case (using an atexit hook) by silently removing all items from the queue that were added by the finalizing interpreter.
Later, while working on concurrent.futures.InterpreterPoolExecutor (gh-116430), I noticed it was somewhat surprising when items were silently removed from the queue when the originating interpreter was destroyed. (See my comment on that PR.)
It took me a little while to realize what was going on. I expect that users, which much less context than I have, would experience the same pain.
My approach, here, to improving the situation is to give users three options:
1. return a singleton (interpreters.queues.UNBOUND) from Queue.get() in place of each removed item
2. raise an exception (interpreters.queues.ItemInterpreterDestroyed) from Queue.get() in place of each removed item
3. existing behavior: silently remove each item (i.e. Queue.get() skips each one)
The default will now be (1), but users can still explicitly opt in any of them, including to the silent removal behavior.
The behavior for each item may be set with the corresponding Queue.put() call. and a queue-wide default may be set when the queue is created. (This is the same as I did for "synconly".)
(cherry picked from commit 6b98b274b6, AKA gh-116431)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
It is our general practice to make new optional parameters keyword-only,
even if the existing parameters are all positional-or-keyword. Passing
this parameter as positional would look confusing and could be error-prone
if additional parameters are added in the future.
(cherry picked from commit 50eec501fe)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
We also need to close the `slave_fd` earlier so that reading from
`master_fd` won't block forever when the subprocess finishes.
(cherry picked from commit abc3aeebdb)
Co-authored-by: Sam Gross <colesbury@gmail.com>
gh-121497: Make Pyrepl respect correctly the history with input hook set (GH-121498)
(cherry picked from commit 4e36dd7d87)
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
gh-121499: Fix multi-line history rendering in the REPL (GH-121531)
(cherry picked from commit 4b9e10d0ea)
Signed-off-by: Pablo Galindo <pablogsal@gmail.com>
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
On POSIX systems, excluding macOS framework installs, the lib directory
for the free-threaded build now includes a "t" suffix to avoid conflicts
with a co-located default build installation.
(cherry picked from commit e8c91d90ba)
Co-authored-by: Sam Gross <colesbury@gmail.com>
When builtin static types are initialized for a subinterpreter, various "tp" slots have already been inherited (for the main interpreter). This was interfering with the logic in add_operators() (in Objects/typeobject.c), causing a wrapper to get created when it shouldn't. This change fixes that by preserving the original data from the static type struct and checking that.
(cherry picked from commit 5250a03133, AKA gh-121602)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
This fixes a mistake in gh-113012 and adds a test that verifies the fix.
(cherry picked from commit 35a67e36aa, AKA gh-121597)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
On heavily loaded machines, the subprocess may finish its sleep before
the parent process manages to synchronize with it via a failed lock.
This leads to errors like:
Exception: failed to sync child in 300.3 sec
Use pipes instead to mutually synchronize between parent and child.
(cherry picked from commit af9f6de6ea)
Co-authored-by: Sam Gross <colesbury@gmail.com>
gh-121571: Do not use `EnvironmentError` in tests, use `OSError` instead (GH-121572)
(cherry picked from commit e2822360da)
Co-authored-by: sobolevn <mail@sobolevn.me>
gh-117657: Skip test when running under TSan (GH-121549)
The ProcessPoolForkserver combined with resource_tracker starts a thread
after forking, which is not supported by TSan.
Also skip test_multiprocessing_fork for the same reason
(cherry picked from commit 04397434aa)
Co-authored-by: Sam Gross <colesbury@gmail.com>
The change in gh-118157 (b2cd54a) should have also updated clear_singlephase_extension() but didn't. We fix that here. Note that clear_singlephase_extension() (AKA _PyImport_ClearExtension()) is only used in tests.
(cherry picked from commit 15d48aea02, AKA gh-121503)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
gh-121351: Skip test_not_wiping_history_file() if no readline (GH-121422)
(cherry picked from commit 68e279b37a)
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
gh-121359: Run test_pyrepl in isolated mode (GH-121414)
run_repl() now pass the -I option (isolated mode) to Python if the
'env' parameter is not set.
(cherry picked from commit 6239d41527)
Co-authored-by: Victor Stinner <vstinner@python.org>
