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* GH-106734: Disable tab completion in pdb's multiline mode (GH-106735)Tian Gao2023-09-122-21/+39
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* gh-109118: Disallow nested scopes within PEP 695 scopes within classes (#109196)Jelle Zijlstra2023-09-123-0/+118
| | | | | Fixes #109118. Fixes #109194. Co-authored-by: Carl Meyer <carl@oddbird.net>
* gh-109292: add symtable impact of PEP 709 to What's New (#109293)Carl Meyer2023-09-121-0/+3
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* gh-109195: fix source location for super load before LOAD_SUPER_ATTR (#109289)Carl Meyer2023-09-113-1/+12
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* gh-109214: Rename SAVE_IP to _SET_IP, and similar (#109285)Guido van Rossum2023-09-1111-117/+117
| | | | | | | | * Rename SAVE_IP to _SET_IP * Rename EXIT_TRACE to _EXIT_TRACE * Rename SAVE_CURRENT_IP to _SAVE_CURRENT_IP * Rename INSERT to _INSERT (This is for Ken Jin's abstract interpreter) * Rename IS_NONE to _IS_NONE * Rename JUMP_TO_TOP to _JUMP_TO_TOP
* gh-107322: zipapp: Remove the suggestion to remove .dist-info directories ↵wim glenn2023-09-111-6/+1
| | | | | (#107296) Removed zipapp suggestion to rm .dist-info subdirectories. This totally breaks importlib.metadata
* gh-109039: Branch prediction for Tier 2 interpreter (#109038)Guido van Rossum2023-09-1115-181/+339
| | | | | | | | | | | This adds a 16-bit inline cache entry to the conditional branch instructions POP_JUMP_IF_{FALSE,TRUE,NONE,NOT_NONE} and their instrumented variants, which is used to keep track of the branch direction. Each time we encounter these instructions we shift the cache entry left by one and set the bottom bit to whether we jumped. Then when it's time to translate such a branch to Tier 2 uops, we use the bit count from the cache entry to decided whether to continue translating the "didn't jump" branch or the "jumped" branch. The counter is initialized to a pattern of alternating ones and zeros to avoid bias. The .pyc file magic number is updated. There's a new test, some fixes for existing tests, and a few miscellaneous cleanups.
* gh-109179: Fix traceback display for SyntaxErrors with notes (#109197)Irit Katriel2023-09-113-34/+34
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* gh-109276: libregrtest: use separated file for JSON (#109277)Victor Stinner2023-09-116-36/+84
| | | | | | | | | | | | | | libregrtest now uses a separated file descriptor to write test result as JSON. Previously, if a test wrote debug messages late around the JSON, the main test process failed to parse JSON. Rename TestResult.write_json() to TestResult.write_json_into(). worker_process() no longer writes an empty line at the end. There is no need to separate test process output from the JSON output anymore, since JSON is now written into a separated file descriptor. create_worker_process() now always spawn the process with close_fds=True.
* gh-90805: Make sure test_functools works with and without _functoolsmodule ↵Nikita Sobolev2023-09-111-30/+28
| | | | (GH-108644)
* gh-109190: What's New in 3.12: Add subheadings to removals for easy linking ↵Hugo van Kemenade2023-09-111-52/+107
| | | | | | (#109159) Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
* gh-108987: Fix _thread.start_new_thread() race condition (#109135)Victor Stinner2023-09-115-41/+69
| | | | | | | | | | | | | Fix _thread.start_new_thread() race condition. If a thread is created during Python finalization, the newly spawned thread now exits immediately instead of trying to access freed memory and lead to a crash. thread_run() calls PyEval_AcquireThread() which checks if the thread must exit. The problem was that tstate was dereferenced earlier in _PyThreadState_Bind() which leads to a crash most of the time. Move _PyThreadState_CheckConsistency() from thread_run() to _PyThreadState_Bind().
* gh-109182: Fix and improve tests for gh-108654 (GH-109189)Serhiy Storchaka2023-09-111-18/+28
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* GH-108976. Keep monitoring data structures valid during de-optimization ↵Mark Shannon2023-09-114-55/+79
| | | | during callback. (GH-109131)
* Better integration of doctest and unittest in test_ctypes.test_objects ↵Serhiy Storchaka2023-09-111-6/+4
| | | | | (GH-108922) Better integration of docrtest and unittest in test_ctypes.test_objects
* Test DocTestFinder directly instead of calling support.run_doctest() (GH-108917)Serhiy Storchaka2023-09-111-5/+3
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* gh-109162: libregrtest: move code around (#109253)Victor Stinner2023-09-113-93/+105
| | | | | * Move Regrtest.display_header() to utils.py. * Move cleanup_temp_dir() to utils.py. * Move list_cases() to findtests.py.
* gh-107219: Fix concurrent.futures terminate_broken() (#109244)Victor Stinner2023-09-113-0/+27
| | | | | | | | | | | | | | | Fix a race condition in concurrent.futures. When a process in the process pool was terminated abruptly (while the future was running or pending), close the connection write end. If the call queue is blocked on sending bytes to a worker process, closing the connection write end interrupts the send, so the queue can be closed. Changes: * _ExecutorManagerThread.terminate_broken() now closes call_queue._writer. * multiprocessing PipeConnection.close() now interrupts WaitForMultipleObjects() in _send_bytes() by cancelling the overlapped operation.
* GH-108614: Increase importlib MAGIC for RESUME_CHECK instruction (#109247)Victor Stinner2023-09-111-1/+2
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* gh-109162: libregrtest: use relative imports (#109250)Victor Stinner2023-09-1117-105/+110
| | | | libregrtest.__init__ no longer exposes any symbol, so "python -m test.libregrtest.worker" imports less modules.
* gh-109162: libregrtest: rename runtest_mp.py to run_workers.py (#109248)Victor Stinner2023-09-119-164/+171
| | | | | | | | | | | | | | | * Rename runtest_mp.py to run_workers.py * Move exit_timeout() and temp_cwd() context managers from Regrtest.main() to Regrtest.run_tests(). Actions like --list-tests or --list-cases don't need these protections. * Regrtest: remove selected and tests attributes. Pass 'selected' to list_tests(), list_cases() and run_tests(). display_result() now expects a TestTuple, instead of TestList. * Rename setup_tests() to setup_process() and rename setup_support() to setup_tests(). * Move _adjust_resource_limits() to utils and rename it to adjust_rlimit_nofile(). * Move replace_stdout() to utils. * Fix RunTests.verbose type: it's an int.
* gh-109162: libregrtest: fix Logger (#109246)Victor Stinner2023-09-113-30/+38
| | | | | * Pass results, quiet and pgo to Logger constructor. * Move display_progress() method from Regrtest to Logger. * No longer pass Regrtest to RunWorkers, but logger and results.
* gh-109162: libregrtest: add single.py and result.py (#109243)Victor Stinner2023-09-1114-697/+722
| | | | | | | | | | | * Add single.py and result.py files. * Rename runtest.py to runtests.py. * Move run_single_test() function and its helper functions to single.py. * Move remove_testfn(), abs_module_name() and normalize_test_name() to utils.py. * Move setup_support() to setup.py. * Move type hints like TestName to utils.py. * Rename runtest.py to runtests.py.
* gh-109162: libregrtest: add worker.py (#109229)Victor Stinner2023-09-1010-213/+238
| | | | | | | | | | | | | | | | | | | | | | | | Add new worker.py file: * Move create_worker_process() and worker_process() to this file. * Add main() function to worker.py. create_worker_process() now runs the command: "python -m test.libregrtest.worker JSON". * create_worker_process() now starts the worker process in the current working directory. Regrtest now gets the absolute path of the reflog.txt filename: -R command line option filename. * Remove --worker-json command line option. Remove test_regrtest.test_worker_json(). Related changes: * Add write_json() and from_json() methods to TestResult. * Rename select_temp_dir() to get_temp_dir() and move it to utils. * Rename make_temp_dir() to get_work_dir() and move it to utils. It no longer calls os.makedirs(): Regrtest.main() now calls it. * Move fix_umask() to utils. The function is now called by setup_tests(). * Move StrPath to utils. * Add exit_timeout() context manager to utils. * RunTests: Replace junit_filename (StrPath) with use_junit (bool).
* gh-109230: test_pyexpat no longer depends on the current directory (#109233)Victor Stinner2023-09-102-24/+53
| | | | | | | | Fix test_pyexpat.test_exception(): it can now be run from a directory different than Python source code directory. Before, the test failed in this case. Skip the test if Modules/pyexpat.c source is not available. Skip also the test on Python implementations other than CPython.
* gh-109237: Fix test_site for non-ASCII working directory (#109238)Victor Stinner2023-09-102-2/+6
| | | | | | Fix test_site.test_underpth_basic() when the working directory contains at least one non-ASCII character: encode the "._pth" file to UTF-8 and enable the UTF-8 Mode to use UTF-8 for the child process stdout.
* gh-50644: Forbid pickling of codecs streams (GH-109180)Serhiy Storchaka2023-09-103-0/+95
| | | | | | | | | Attempts to pickle or create a shallow or deep copy of codecs streams now raise a TypeError. Previously, copying failed with a RecursionError, while pickling produced wrong results that eventually caused unpickling to fail with a RecursionError.
* gh-109054: Don't use libatomic on cross-compilation (#109211)Victor Stinner2023-09-102-8/+6
| | | | | | | configure no longer uses libatomic by default when Python is cross-compiled. The LIBATOMIC variable can be set manually in this case: ./configure LIBATOMIC="-latomic" (...)
* gh-109207: Fix SystemError when printing symtable entry object. (GH-109225)云line2023-09-103-3/+7
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* Fix "FSTRING_MIDDLE" typo in py312 "What's New" (#109222)Delgan2023-09-101-1/+1
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* gh-93627: Align Python implementation of pickle with C implementation of ↵Pieter Eendebak2023-09-103-10/+72
| | | | | pickle (GH-103035) If a method like __reduce_ex_ or __reduce__ is set to None, a TypeError is raised.
* gh-109174: Add support of SimpleNamespace in copy.replace() (GH-109175)Serhiy Storchaka2023-09-104-0/+58
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* gh-109162: libregrtest: add Logger class (#109212)Victor Stinner2023-09-104-99/+123
| | | | | | | | | | | | | | | | | | | | * Add Logger class in a new logger.py file. * Move Regrtest attributes to Logger: * start_time * test_count_text * test_count_width * win_load_tracker * Move Regrtest method to Logger: * log() * getloadavg(): rename to get_load_avg() * set_tests() * Add methods to the Logger class: * start_load_tracker() * stop_load_tracker()
* gh-109162: libregrtest: add TestResults class (#109208)Victor Stinner2023-09-103-274/+306
| | | | | | | | | | | | | | | | | | | | * Add TestResults class. * Move Regrtest methods to TestResults: * accumulate_result(): now takes a RunTests parameter * get_executed() * no_tests_run() * Add methods to TestResults: * add_junit() * display_result() * display_summary() * need_rerun() * prepare_rerun() * write_junit() * Rename 'need_rerun' attribute to 'bad_results'. * Rename 'total_stats' attribute to 'stats'.
* gh-109162: Refactor libregrtest.Regrtest (#109206)Victor Stinner2023-09-105-115/+120
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add type hint types: TestName, StrPath, StrJSON. * Add attributes to Regrtest: * cmdline_args * coverage * coverage_dir * fail_rerun * next_single_filename * print_slowest * tmp_dir * want_rerun * want_run_leaks * Remove Regrtest.ns attribute. * Rename Regrtest methods: * cleanup() => cleanup_temp_dir() * create_temp_dir() => make_temp_dir() * set_temp_dir() => select_temp_dir() * Convert Regrtest methods to static methods: * cleanup_temp_dir() * display_header() * fix_umask() * get_rerun_match_tests() * list_tests() * make_temp_dir() * select_temp_dir() * Remove display_sanitizers() method: move code into display_header(). * Rename 'test_cwd' variable to 'work_dir'.
* gh-109162: Refactor libregrtest.runtest_mp (#109205)Victor Stinner2023-09-104-56/+57
| | | | | | | | | | | | | | * Add attributes to Regrtest and RunTests: * fail_env_changed * num_workers * Rename MultiprocessTestRunner to RunWorkers. Add num_workers parameters to RunWorkers constructor. Remove RunWorkers.ns attribute. * Rename TestWorkerProcess to WorkerThread. * get_running() now returns a string like: "running (...): ...". * Regrtest.action_run_tests() now selects the number of worker processes, instead of the command line parser.
* gh-109162: libregrtest: remove WorkerJob class (#109204)Victor Stinner2023-09-097-88/+126
| | | | | | | | | | | | | | | * Add attributes to Regrtest and RunTests: * gc_threshold * memory_limit * python_cmd * use_resources * Remove WorkerJob class. Add as_json() and from_json() methods to RunTests. A worker process now only uses RunTests for all parameters. * Add tests on support.set_memlimit() in test_support. Create _parse_memlimit() and also adds tests on it. * Remove 'ns' parameter from runtest.py.
* gh-109162: libregrtest: fix _decode_worker_job() (#109202)Victor Stinner2023-09-093-5/+21
| | | | | Decode also HuntRefleak() object inside the RunTests object. Add an unit test on huntrleaks with multiprocessing (-R -jN).
* Improve the sieve() recipe in the itertools docs (gh-109199)Raymond Hettinger2023-09-091-4/+7
| | | Lazier sieve
* Fix an ironic typo in a code comment. (gh-109186)Raymond Hettinger2023-09-091-1/+1
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* gh-109162: Refactor libregrtest.RunTests (#109177)Victor Stinner2023-09-095-60/+88
| | | | | | | | | | | | * Rename dash_R() runtest_refleak(). The function now gets huntrleaks and quiet arguments, instead of 'ns' argument. * Add attributes to Regrtest and RunTests: * verbose * quiet * huntrleaks * test_dir * Add HuntRefleak class.
* gh-109050: Remove remaining tests for legacy Unicode C API (GH-109068)Serhiy Storchaka2023-09-096-197/+1
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* gh-109118: Fix runtime crash when NameError happens in PEP 695 function ↵Jelle Zijlstra2023-09-097-106/+189
| | | | (#109123)
* gh-109162: Refactor libregrtest.runtest (#109172)Victor Stinner2023-09-095-104/+134
| | | | | | | | | | | | | | | | | | | | | | * Rename runtest() to run_single_test(). * Pass runtests to run_single_test(). * Add type annotation to Regrtest attributes. Add missing attributes to Namespace. * Add attributes to Regrtest and RunTests: * fail_fast * ignore_tests * match_tests * output_on_failure * pgo * pgo_extended * timeout * Get pgo from 'runtests', rather than from 'ns'. * Remove WorkerJob.match_tests. * setup_support() now gets pgo_extended from runtests. * save_env(): change parameter order, pass test_name first. * Add setup_test_dir() function. * Pass runtests to setup_tests().
* gh-109052: Use the base opcode when comparing code objects (gh-109107)Tian Gao2023-09-093-6/+24
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* gh-109162: Refactor libregrtest WorkerJob (#109171)Victor Stinner2023-09-095-41/+48
| | | | | | | | | | | | | | | * Rename --worker-args command line option to --worker-json. * Rename _parse_worker_args() to _parse_worker_json(). * WorkerJob: * Add runtests attribute * Remove test_name and rerun attribute * Rename run_test_in_subprocess() to create_worker_process(). * Rename run_tests_worker() to worker_process(). * create_worker_process() uses json.dump(): write directly JSON to stdout. * Convert MultiprocessResult to a frozen dataclass. * Rename RunTests.match_tests to RunTests.match_tests_dict.
* gh-109162: Refactor Regrtest.action_run_tests() (#109170)Victor Stinner2023-09-091-49/+49
| | | | | | | Refator Regrtest class: * Rename finalize() finalize_tests(). * Pass tracer to run_test() and finalize_tests(). Remove Regrtest.tracer. * run_test() does less things: move code to its caller.
* gh-108996: Skip broken test_msvcrt for now (#109169)Victor Stinner2023-09-081-0/+2
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* gh-109162: Regrtest copies 'ns' attributes (#109168)Victor Stinner2023-09-083-48/+73
| | | | | | | | | | * Regrtest.__init__() now copies 'ns' namespace attributes to Regrtest attributes. Regrtest match_tests and ignore_tests attributes have type FilterTuple (tuple), instead of a list. * Add RunTests.copy(). Regrtest._rerun_failed_tests() now uses RunTests.copy(). * Replace Regrtest.all_tests (list) with Regrtest.first_runtests (RunTests). * Make random_seed maximum 10x larger (9 digits, instead of 8).
* gh-109162: Refactor Regrtest.main() (#109163)Victor Stinner2023-09-084-62/+64
| | | | | | | | | | | | | * main() now calls _parse_args() and pass 'ns' to Regrtest constructor. Remove kwargs argument from Regrtest.main(). * _parse_args() checks ns.huntrleaks. * set_temp_dir() is now responsible to call expanduser(). * Regrtest.main() sets self.tests earlier. * Add TestTuple and TestList types. * Rename MatchTests to FilterTuple and rename MatchTestsDict to FilterTestDict. * TestResult.get_rerun_match_tests() return type is now FilterTuple: return a tuple instead of a list. RunTests.tests type becomes TestTuple.
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