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* GH-103805: Lib test f541 linting issue fix (#103812)Rodolfo M. Pereira2023-04-241-2/+2
| | | | | | | | | | | | | | | | This PR makes some minor linting adjustments to the Lib/test module caught by [ruff](https://github.com/charliermarsh/ruff). The adjustments are all related to the `F541 f-string without any placeholders` issue. Issue: https://github.com/python/cpython/issues/103805 <!-- gh-issue-number: gh-103805 --> * Issue: gh-103805 <!-- /gh-issue-number --> --------- Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Gregory P. Smith <greg@krypto.org>
* gh-102515: Remove unused imports in the `Lib/` directory (#102516)Alex Waygood2023-03-081-2/+0
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* gh-101524: Split Up the _xxsubinterpreters Module (gh-101526)Eric Snow2023-02-041-1506/+23
| | | | | This is step 1 in potentially dropping all the "channel"-related code. Channels have already been removed from PEP 554. https://github.com/python/cpython/issues/101524
* gh-99741: Implement Multi-Phase Init for the _xxsubinterpreters Module ↵Eric Snow2022-12-051-1/+10
| | | | | | | (gh-99742) _xxsubinterpreters is an internal module used for testing. https://github.com/python/cpython/issues/99741
* gh-99741: Clean Up the _xxsubinterpreters Module (gh-99940)Eric Snow2022-12-021-1/+25
| | | | | This cleanup up resolves a few subtle bugs and makes the implementation for multi-phase init much cleaner. https://github.com/python/cpython/issues/99741
* gh-98610: Adjust the Optional Restrictions on Subinterpreters (GH-98618)Eric Snow2022-10-311-1/+56
| | | | | | | Previously, the optional restrictions on subinterpreters were: disallow fork, subprocess, and threads. By default, we were disallowing all three for "isolated" interpreters. We always allowed all three for the main interpreter and those created through the legacy `Py_NewInterpreter()` API. Those settings were a bit conservative, so here we've adjusted the optional restrictions to: fork, exec, threads, and daemon threads. The default for "isolated" interpreters disables fork, exec, and daemon threads. Regular threads are allowed by default. We continue always allowing everything For the main interpreter and the legacy API. In the code, we add `_PyInterpreterConfig.allow_exec` and `_PyInterpreterConfig.allow_daemon_threads`. We also add `Py_RTFLAGS_DAEMON_THREADS` and `Py_RTFLAGS_EXEC`.
* Add test.support.busy_retry() (#93770)Victor Stinner2022-06-151-6/+5
| | | Add busy_retry() and sleeping_retry() functions to test.support.
* bpo-40280: Skip more tests on Emscripten (GH-31947)Christian Heimes2022-03-171-1/+1
| | | | | | - lchmod, lchown are not fully implemented - skip umask tests - cannot fstat unlinked or renamed files yet - ignore musl libc issues that affect Emscripten
* Fix typos in the Lib directory (GH-28775)Christian Clauss2021-10-061-1/+1
| | | | | Fix typos in the Lib directory as identified by codespell. Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
* To fix the random failed test cases of test___xxsubinterpreters in ↵Hai Shi2021-07-291-0/+15
| | | | multiprocess. (GH-27240)
* bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25142)Inada Naoki2021-04-021-6/+6
| | | | | | | | | | | | | * test__xxsubinterpreters * test_builtin * test_doctest * test_exceptions * test_opcodes * test_support * test_argparse * test_baseexception * test_bdb * test_bool * test_asdl_parser
* bpo-40275: Use new test.support helper submodules in tests (GH-20849)Hai Shi2020-06-251-1/+2
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* Skip tests to fix bot (GH-20777)Joannah Nanjekye2020-06-211-0/+1
| | | Co-authored-by: nanjekyejoannah <joannah.nanjekye@ibm.com>
* bpo-32604: Clean up test.support.interpreters. (gh-20926)Eric Snow2020-06-171-12/+0
| | | | | There were some minor adjustments needed and a few tests were missing. https://bugs.python.org/issue32604
* bpo-40834: Fix truncate when sending str object with channel (GH-20555)An Long2020-06-131-0/+3
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* Revert "bpo-32604: [_xxsubinterpreters] Propagate exceptions. (GH-19768)" ↵Victor Stinner2020-05-141-299/+2
| | | | | | | | | | | (GH-20089) * Revert "bpo-40613: Remove compiler warning from _xxsubinterpretersmodule (GH-20069)" This reverts commit fa0a66e62d087765dbc5c1b89d6149a23ecfb0a6. * Revert "bpo-32604: [_xxsubinterpreters] Propagate exceptions. (GH-19768)" This reverts commit a1d9e0accd33af1d8e90fc48b34c13d7b07dcf57.
* bpo-32604: [_xxsubinterpreters] Propagate exceptions. (GH-19768)Eric Snow2020-05-071-2/+299
| | | | | | | | | (Note: PEP 554 is not accepted and the implementation in the code base is a private one for use in the test suite.) If code running in a subinterpreter raises an uncaught exception then the "run" call in the calling interpreter fails. A RunFailedError is raised there that summarizes the original exception as a string. The actual exception type, __cause__, __context__, state, etc. are all discarded. This turned out to be functionally insufficient in practice. There is a more helpful solution (and PEP 554 has been updated appropriately). This change adds the exception propagation behavior described in PEP 554 to the _xxsubinterpreters module. With this change a copy of the original exception is set to __cause__ on the RunFailedError. For now we are using "pickle", which preserves the exception's state. We also preserve the original __cause__, __context__, and __traceback__ (since "pickle" does not preserve those). https://bugs.python.org/issue32604
* bpo-40453: Add PyConfig._isolated_subinterpreter (GH-19820)Victor Stinner2020-05-011-1/+2
| | | | | | | | | An isolated subinterpreter cannot spawn threads, spawn a child process or call os.fork(). * Add private _Py_NewInterpreter(isolated_subinterpreter) function. * Add isolated=True keyword-only parameter to _xxsubinterpreters.create(). * Allow again os.fork() in "non-isolated" subinterpreters.
* Remove dead code in test__xxsubinterpreters (GH-19826)Victor Stinner2020-05-011-20/+0
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* bpo-38880: List interpreters associated with a channel end (GH-17323)Lewis Gaul2020-04-291-0/+196
| | | | | This PR adds the functionality requested by https://github.com/ericsnowcurrently/multi-core-python/issues/52. Automerge-Triggered-By: @ericsnowcurrently
* bpo-32604: Add support for a "default" arg in channel_recv(). (GH-19770)Eric Snow2020-04-281-0/+21
| | | | | This allows the caller to avoid creation of an exception when the channel is empty (just like `dict.get()` works). `ChannelEmptyError` is still raised if no default is provided. Automerge-Triggered-By: @ericsnowcurrently
* bpo-37224: Improve test__xxsubinterpreters.DestroyTests (GH-18058)Kyle Stanley2020-01-311-1/+5
| | | | | | Adds an additional assertion check based on a race condition for `test__xxsubinterpreters.DestroyTests.test_still_running` discovered in the bpo issue. https://bugs.python.org/issue37224
* bpo-38005: Remove support of string argument in InterpreterID(). (GH-16227)Serhiy Storchaka2019-09-251-9/+6
| | | Make negative interpreter id to raise ValueError instead of RuntimeError.
* bpo-38005: Fixed comparing and creating of InterpreterID and ChannelID. ↵Serhiy Storchaka2019-09-131-39/+38
| | | | | | | | | | | | | (GH-15652) * Fix a crash in comparing with float (and maybe other crashes). * They are now never equal to strings and non-integer numbers. * Comparison with a large number no longer raises OverflowError. * Arbitrary exceptions no longer silenced in constructors and comparisons. * TypeError raised in the constructor contains now the name of the type. * Accept only ChannelID and int-like objects in channel functions. * Accept only InterpreterId, int-like objects and str in the InterpreterId constructor. * Accept int-like objects, not just int in interpreter related functions.
* Remove unused imports in tests (GH-14518)Victor Stinner2019-07-011-1/+1
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* bpo-35972: _xxsubinterpreters: Fix potential integer truncation on 32-bit in ↵Alexey Izbyshev2019-02-121-1/+13
| | | | channel_send() (gh-11822)
* bpo-34651: Only allow the main interpreter to fork. (gh-9279)Eric Snow2018-09-141-14/+3
| | | | | When os.fork() is called (on platforms that support it) all threads but the current one are destroyed in the child process. Consequently we must ensure that all but the associated interpreter are likewise destroyed. The main interpreter is critical for runtime operation, so we must ensure that fork only happens in the main interpreter. https://bugs.python.org/issue34651
* bpo-33615: Re-enable subinterpreter tests. (#7552)Eric Snow2018-06-131-5/+6
| | | All the subinterpreter tests were disabled in gh-7513. This commit re-enables them, but leaves one bad test disabled. The test is partly causing problems because it makes assumptions about the availability of a high-level interpreters module (see PEP 554). So I'm disabling the test until such a high-level module is available.
* bpo-33615: Skip test__xxsubinterpreters (GH-7503)Victor Stinner2018-06-081-0/+2
| | | | | The test does crash on multiple CIs causing many troubles. For example, the test prevents to get results of the two Refleak 3.x buildbots.
* bpo-33615: Re-enable a subinterpreter test. (gh-7251)Eric Snow2018-06-021-2/+0
| | | For bpo-32604 I added extra subinterpreter-related tests (see #6914), which caused a few buildbots to crash. This patch fixes the crash by ensuring that refcounts in channels are handled properly.
* bpo-33615: Temporarily disable a test that is triggering crashes on a few ↵Eric Snow2018-05-311-0/+2
| | | | | buildbots. (gh-7288) For bpo-32604 I added some subinterpreter-related tests (see #6914) that are causing crashes on a few buildbots. I'm working on fixing the crashes (see #7251). This change temporarily disables the triggering test.
* bpo-32604: Implement force-closing channels. (gh-6937)Eric Snow2018-05-171-4/+96
| | | This will make it easier to clean up channels (e.g. when used in tests).
* bpo-32604: Improve subinterpreter tests. (#6914)Eric Snow2018-05-161-199/+995
| | | Add more tests for subinterpreters. This patch also fixes a few small defects in the channel implementation.
* Spelling fixes to docs, docstrings, and comments (GH-6374)Ville Skyttä2018-04-201-1/+1
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* bpo-32604: Swap threads only if the interpreter is different. (gh-5778)Eric Snow2018-02-201-0/+49
| | | The CPython runtime assumes that there is a one-to-one relationship (for a given interpreter) between PyThreadState and OS threads. Sending and receiving on a channel in the same interpreter was causing crashes because of this (specifically due to a check in PyThreadState_Swap()). The solution is to not switch threads if the interpreter is the same.
* bpo-32604: Clean up created subinterpreters before runtime finalization. ↵Eric Snow2018-02-171-9/+69
| | | | | | (gh-5709)
* bpo-32604: Fix memory leaks in the new _xxsubinterpreters module. (#5507)Eric Snow2018-02-031-8/+10
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* bpo-32604: Expose the subinterpreters C-API in a "private" stdlib module. ↵Eric Snow2018-01-301-0/+1118
(gh-1748) The module is primarily intended for internal use in the test suite. Building the module under Windows will come in a follow-up PR.
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