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* bpo-44184: Fix subtype_dealloc() for freed type (GH-26274)Victor Stinner2021-05-211-1/+33
| | | | | | | | | Fix a crash at Python exit when a deallocator function removes the last strong reference to a heap type. Don't read type memory after calling basedealloc() since basedealloc() can deallocate the type and free its memory. _PyMem_IsPtrFreed() argument is now constant.
* bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25171)Inada Naoki2021-04-041-1/+1
| | | | | | | | | | | * Fix test_float * Fix _osx_support * Fix test_fstring * Fix test_gc * Fix test_gzip * Fix test_hashlib * Fix unrelated whitespace issue Co-authored-by: Ned Deily <nad@python.org>
* bpo-41984: GC track all user classes (GH-22701)Brandt Bucher2020-10-151-3/+3
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* bpo-40275: Use new test.support helper submodules in tests (GH-21448)Hai Shi2020-08-031-2/+3
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* bpo-40275: Adding threading_helper submodule in test.support (GH-20263)Hai Shi2020-05-271-3/+3
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* bpo-39489: Remove COUNT_ALLOCS special build (GH-18259)Victor Stinner2020-02-031-5/+1
| | | | | | | | | | | Remove: * COUNT_ALLOCS macro * sys.getcounts() function * SHOW_ALLOC_COUNT code in listobject.c * SHOW_TRACK_COUNT code in tupleobject.c * PyConfig.show_alloc_count field * -X showalloccount command line option * @test.support.requires_type_collecting decorator
* bpo-39322: Add gc.is_finalized to check if an object has been finalised by ↵Pablo Galindo2020-01-141-0/+18
| | | | the gc (GH-17989)
* bpo-38991: Remove test.support.strip_python_stderr() (GH-17490)Victor Stinner2019-12-081-3/+3
| | | | | test.support: run_python_until_end(), assert_python_ok() and assert_python_failure() functions no longer strip whitespaces from stderr.
* bpo-38006: Add unit test for weakref clear bug (GH-16788)Neil Schemenauer2019-10-161-0/+66
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* bpo-38379: Don't block collection of unreachable objects when some objects ↵Pablo Galindo2019-10-131-16/+82
| | | | | | | resurrect (GH-16687) Currently if any finalizer invoked during garbage collection resurrects any object, the gc gives up and aborts the collection. Although finalizers are assured to only run once per object, this behaviour of the gc can lead to an ever-increasing memory situation if new resurrecting objects are allocated in every new gc collection. To avoid this, recompute what objects among the unreachable set need to be resurrected and what objects can be safely collected. In this way, resurrecting objects will not block the collection of other objects in the unreachable set.
* bpo-38379: don't claim objects are collected when they aren't (#16658)Tim Peters2019-10-091-0/+70
| | | | | | * bpo-38379: when a finalizer resurrects an object, nothing is actually collected in this run of gc. Change the stats to relect that truth.
* bpo-36389: _PyObject_CheckConsistency() available in release mode (GH-16612)Victor Stinner2019-10-071-6/+9
| | | | | | | | | | | | | | | | | | | | | bpo-36389, bpo-38376: The _PyObject_CheckConsistency() function is now also available in release mode. For example, it can be used to debug a crash in the visit_decref() function of the GC. Modify the following functions to also work in release mode: * _PyDict_CheckConsistency() * _PyObject_CheckConsistency() * _PyType_CheckConsistency() * _PyUnicode_CheckConsistency() Other changes: * _PyMem_IsPtrFreed(ptr) now also returns 1 if ptr is NULL (equals to 0). * _PyBytesWriter_CheckConsistency() now returns 1 and is only used with assert(). * Reorder _PyObject_Dump() to write safe fields first, and only attempt to render repr() at the end.
* Fix typos mostly in comments, docs and test names (GH-15209)Min ho Kim2019-08-301-1/+1
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* bpo-36155: Check for identity on test_gc.test_get_objects (GH-12116)Pablo Galindo2019-03-011-12/+36
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* bpo-36016: Add generation option to gc.getobjects() (GH-11909)Pablo Galindo2019-02-231-0/+32
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* bpo-9263: Dump Python object on GC assertion failure (GH-10062)Victor Stinner2018-10-251-3/+66
| | | | | | | | | | | | | | | | | | | | | | | Changes: * Add _PyObject_AssertFailed() function. * Add _PyObject_ASSERT() and _PyObject_ASSERT_WITH_MSG() macros. * gc_decref(): replace assert() with _PyObject_ASSERT_WITH_MSG() to dump the faulty object if the assertion fails. _PyObject_AssertFailed() calls: * _PyMem_DumpTraceback(): try to log the traceback where the object memory has been allocated if tracemalloc is enabled. * _PyObject_Dump(): log repr(obj). * Py_FatalError(): log the current Python traceback. _PyObject_AssertFailed() uses _PyObject_IsFreed() heuristic to check if the object memory has been freed by a debug hook on Python memory allocators. Initial patch written by David Malcolm. Co-Authored-By: David Malcolm <dmalcolm@redhat.com>
* bpo-24596: Decref module in PyRun_SimpleFileExFlags() on SystemExit (GH-7918)Zackery Spytz2018-07-031-1/+16
| | | | PyErr_Print() will not return when the exception is a SystemExit, so decref the __main__ module object in that case.
* Revert "bpo-31356: Add context manager to temporarily disable GC GH-5495Yury Selivanov2018-02-021-70/+1
| | | | | | | This reverts commit 72a0d218dcc94a3cc409a9ef32dfcd5a7bbcb43c. The reverted commit had a few issues so it was unanimously decided to undo it. See the bpo issue for details.
* bpo-31356: Add context manager to temporarily disable GC (GH-4224)Pablo Galindo2018-01-291-1/+70
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* bpo-31558: Add gc.freeze() (#3705)brainfvck2017-10-161-0/+6
| | | | | Freeze all the objects tracked by gc - move them to a permanent generation and ignore all the future collections. This can be used before a POSIX fork() call to make the gc copy-on-write friendly or to speed up collection.
* bpo-31370: Remove support for threads-less builds (#3385)Antoine Pitrou2017-09-071-6/+1
| | | | | | * Remove Setup.config * Always define WITH_THREAD for compatibility.
* Issue #19527: Fixed tests with defined COUNT_ALLOCS.Serhiy Storchaka2016-07-031-2/+5
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| * Issue #19527: Fixed tests with defined COUNT_ALLOCS.Serhiy Storchaka2016-07-031-2/+5
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* | test_gc: remove unused importsVictor Stinner2016-01-231-2/+0
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* Issue #9517: Move script_helper to the support package.Berker Peksag2015-05-061-2/+3
| | | | Patch by Christie Wilson.
* Issue #23726: Don't enable GC for user subclasses of non-GC types that don't ↵Antoine Pitrou2015-04-131-0/+20
| | | | | | add any new fields. Patch by Eugene Toder.
* Issue #23799: Added test.support.start_threads() for running and cleaning upSerhiy Storchaka2015-04-011-9/+3
| | | | multiple threads.
* Make some tests more frienly to MemoryError.Serhiy Storchaka2015-03-281-4/+6
| | | | Free memory, unlock hanging threads.
* Issue #21435: Segfault in gc with cyclic trashTim Peters2014-05-081-0/+32
| | | | | Changed the iteration logic in finalize_garbage() to tolerate objects vanishing from the list as a side effect of executing a finalizer.
* Issue #20532: Tests which use _testcapi now are marked as CPython only.Serhiy Storchaka2014-02-071-5/+17
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* | Issue #18112: PEP 442 implementation (safe object finalization).Antoine Pitrou2013-07-301-6/+12
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* | Issue #1545463: Global variables caught in reference cycles are now ↵Antoine Pitrou2013-05-061-0/+36
| | | | | | | | garbage-collected at shutdown.
* | Issue #16351: New function gc.get_stats() returns per-generation collection ↵Antoine Pitrou2012-10-301-0/+26
|/ | | | statistics.
* Issue #13992: The trashcan mechanism is now thread-safe. This eliminatesAntoine Pitrou2012-09-051-0/+69
| | | | | | | | | | | sporadic crashes in multi-thread programs when several long deallocator chains ran concurrently and involved subclasses of built-in container types. Because of this change, a couple extension modules compiled for 3.2.4 (those which use the trashcan mechanism, despite it being undocumented) will not be loadable by 3.2.3 and earlier. However, extension modules compiled for 3.2.3 and earlier will be loadable by 3.2.4.
* pep8-ize test namesAntoine Pitrou2012-04-161-3/+3
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* Fix refleak in test_gcAntoine Pitrou2012-04-161-1/+2
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* Issue #10576: Add a progress callback to gcmoduleKristján Valur Jónsson2012-04-151-1/+135
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* Issue #11761: make tests for gc.get_count() less fragileAntoine Pitrou2011-04-041-16/+27
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| * Issue #11761: make tests for gc.get_count() less fragileAntoine Pitrou2011-04-041-16/+27
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| | * Issue #11761: make tests for gc.get_count() less fragileAntoine Pitrou2011-04-041-16/+27
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* | | Issue #10992: make tests pass when run under coverage.Brett Cannon2011-02-221-1/+5
|/ / | | | | | | | | | | | | | | | | | | Various tests fail when run under coverage. A primary culprit is refcount tests which fail as the counts are thrown off by the coverage code. A new decorator -- test.support.refcount_test -- is used to decorate tests which test refcounts and to skip them when running under coverage. Other tests simply fail because of changes in the system (e.g., __local__ suddenly appearing). Thanks to Kristian Vlaardingerbroek for helping to diagnose the test failures.
* | Fix ResourceWarning occuring on Windows. Close stdout/stderr pipes.Brian Curtin2010-11-011-0/+2
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* | Add a new warning gategory, ResourceWarning, as discussed on python-dev. It ↵Georg Brandl2010-10-241-3/+5
| | | | | | | | | | | | | | | | is silent by default, except when configured --with-pydebug. Emit this warning from the GC shutdown procedure, rather than just printing to stderr.
* | Relax test condition (fix failures on FreeBSD buildbots)Antoine Pitrou2010-09-161-2/+4
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* | Do not print additional shutdown message when gc.DEBUG_SAVEALL is setAntoine Pitrou2010-09-141-4/+9
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* | Issue #477863: Print a warning at shutdown if gc.garbage is not empty.Antoine Pitrou2010-08-081-1/+37
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* Merged revisions 70837,70864,70878,71004,71032,71043 via svnmerge fromBenjamin Peterson2009-04-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | svn+ssh://pythondev@svn.python.org/python/trunk ........ r70837 | gregory.p.smith | 2009-03-31 11:54:10 -0500 (Tue, 31 Mar 2009) | 9 lines The unittest.TestCase.assertEqual() now displays the differences in lists, tuples, dicts and sets on failure. Many new handy type and comparison specific assert* methods have been added that fail with error messages actually useful for debugging. Contributed in by Google and completed with help from mfoord and GvR at PyCon 2009 sprints. Discussion lives in http://bugs.python.org/issue2578. ........ r70864 | gregory.p.smith | 2009-03-31 14:03:28 -0500 (Tue, 31 Mar 2009) | 10 lines Rename the actual method definitions to the official assertFoo names. Adds unittests to make sure the old fail* names continue to work now and adds a comment that they are pending deprecation. Also adds a test to confirm that the plural Equals method variants continue to exist even though we're unlikely to deprecate those. http://bugs.python.org/issue2578 ........ r70878 | gregory.p.smith | 2009-03-31 14:59:14 -0500 (Tue, 31 Mar 2009) | 3 lines Issue an actual PendingDeprecationWarning for the TestCase.fail* methods. Document the deprecation. ........ r71004 | benjamin.peterson | 2009-04-01 18:15:49 -0500 (Wed, 01 Apr 2009) | 1 line remove double underscores ........ r71032 | michael.foord | 2009-04-01 22:20:38 -0500 (Wed, 01 Apr 2009) | 13 lines Better exception messages for unittest assert methods. - unittest.assertNotEqual() now uses the inequality operator (!=) instead of the equality operator. - Default assertTrue and assertFalse messages are now useful. - TestCase has a longMessage attribute. This defaults to False, but if set to True useful error messages are shown in addition to explicit messages passed to assert methods. Issue #5663 ........ r71043 | michael.foord | 2009-04-02 00:51:54 -0500 (Thu, 02 Apr 2009) | 7 lines Store the functions in the _type_equality_funcs as wrapped objects that are deep copyable. This allows for the deep copying of TestCase instances. Issue 5660 ........
* Merged revisions 70546 via svnmerge fromAntoine Pitrou2009-03-231-0/+27
| | | | | | | | | | | | | | | | svn+ssh://pythondev@svn.python.org/python/trunk ........ r70546 | antoine.pitrou | 2009-03-23 19:41:45 +0100 (lun., 23 mars 2009) | 9 lines Issue #4688: Add a heuristic so that tuples and dicts containing only untrackable objects are not tracked by the garbage collector. This can reduce the size of collections and therefore the garbage collection overhead on long-running programs, depending on their particular use of datatypes. (trivia: this makes the "binary_trees" benchmark from the Computer Language Shootout 40% faster) ........
* #2621 rename test.test_support to test.supportBenjamin Peterson2008-05-201-1/+1
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* Merged revisions ↵Christian Heimes2008-02-161-5/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60790 | raymond.hettinger | 2008-02-14 10:32:45 +0100 (Thu, 14 Feb 2008) | 4 lines Add diagnostic message to help figure-out why SocketServer tests occasionally crash when trying to remove a pid that in not in the activechildren list. ........ r60791 | raymond.hettinger | 2008-02-14 11:46:57 +0100 (Thu, 14 Feb 2008) | 1 line Add fixed-point examples to the decimal FAQ ........ r60792 | raymond.hettinger | 2008-02-14 12:01:10 +0100 (Thu, 14 Feb 2008) | 1 line Improve rst markup ........ r60794 | raymond.hettinger | 2008-02-14 12:57:25 +0100 (Thu, 14 Feb 2008) | 1 line Show how to remove exponents. ........ r60795 | raymond.hettinger | 2008-02-14 13:05:42 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup. ........ r60797 | christian.heimes | 2008-02-14 13:47:33 +0100 (Thu, 14 Feb 2008) | 1 line Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. ........ r60798 | raymond.hettinger | 2008-02-14 13:49:37 +0100 (Thu, 14 Feb 2008) | 1 line Simplify moneyfmt() recipe. ........ r60810 | raymond.hettinger | 2008-02-14 20:02:39 +0100 (Thu, 14 Feb 2008) | 1 line Fix markup ........ r60811 | raymond.hettinger | 2008-02-14 20:30:30 +0100 (Thu, 14 Feb 2008) | 1 line No need to register subclass of ABCs. ........ r60814 | thomas.heller | 2008-02-14 22:00:28 +0100 (Thu, 14 Feb 2008) | 1 line Try to correct a markup error that does hide the following paragraph. ........ r60822 | christian.heimes | 2008-02-14 23:40:11 +0100 (Thu, 14 Feb 2008) | 1 line Use a static and interned string for __subclasscheck__ and __instancecheck__ as suggested by Thomas Heller in #2115 ........ r60827 | christian.heimes | 2008-02-15 07:57:08 +0100 (Fri, 15 Feb 2008) | 1 line Fixed repr() and str() of complex numbers. Complex suffered from the same problem as floats but I forgot to test and fix them. ........ r60830 | christian.heimes | 2008-02-15 09:20:11 +0100 (Fri, 15 Feb 2008) | 2 lines Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ Thanks to Thomas Herve for the fix. ........ r60835 | eric.smith | 2008-02-15 13:14:32 +0100 (Fri, 15 Feb 2008) | 1 line In PyNumber_ToBase, changed from an assert to returning an error when PyObject_Index() returns something other than an int or long. It should never be possible to trigger this, as PyObject_Index checks to make sure it returns an int or long. ........ r60837 | skip.montanaro | 2008-02-15 20:03:59 +0100 (Fri, 15 Feb 2008) | 8 lines Two new functions: * place_summary_first copies the regrtest summary to the front of the file making it easier to scan quickly for problems. * count_failures gets the actual count of the number of failing tests, not just a 1 (some failures) or 0 (no failures). ........ r60840 | raymond.hettinger | 2008-02-15 22:21:25 +0100 (Fri, 15 Feb 2008) | 1 line Update example to match the current syntax. ........ r60841 | amaury.forgeotdarc | 2008-02-15 22:22:45 +0100 (Fri, 15 Feb 2008) | 8 lines Issue #2115: __slot__ attributes setting was 10x slower. Also correct a possible crash using ABCs. This change is exactly the same as an optimisation done 5 years ago, but on slot *access*: http://svn.python.org/view?view=rev&rev=28297 ........ r60842 | amaury.forgeotdarc | 2008-02-15 22:27:44 +0100 (Fri, 15 Feb 2008) | 2 lines Temporarily let these tests pass ........ r60843 | kurt.kaiser | 2008-02-15 22:56:36 +0100 (Fri, 15 Feb 2008) | 2 lines ScriptBinding event handlers weren't returning 'break'. Patch 2050, Tal Einat. ........ r60844 | kurt.kaiser | 2008-02-15 23:25:09 +0100 (Fri, 15 Feb 2008) | 4 lines Configured selection highlighting colors were ignored; updating highlighting in the config dialog would cause non-Python files to be colored as if they were Python source; improve use of ColorDelagator. Patch 1334. Tal Einat. ........ r60845 | amaury.forgeotdarc | 2008-02-15 23:44:20 +0100 (Fri, 15 Feb 2008) | 9 lines Re-enable tests, they were failing since gc.collect() clears the various freelists. They still remain fragile. For example, a call to assertEqual currently does not make any allocation (which surprised me at first). But this can change when gc.collect also deletes the numerous "zombie frames" attached to each function. ........
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