Commit Graph

63 Commits

Author SHA1 Message Date
Serhiy Storchaka 42a139ed88
bpo-36492: Deprecate passing some arguments as keyword arguments. (GH-12637)
Deprecated passing the following arguments as keyword arguments:

- "func" in functools.partialmethod(), weakref.finalize(),
  profile.Profile.runcall(), cProfile.Profile.runcall(),
  bdb.Bdb.runcall(), trace.Trace.runfunc() and
  curses.wrapper().
- "function" in unittest.addModuleCleanup() and
  unittest.TestCase.addCleanup().
- "fn" in the submit() method of concurrent.futures.ThreadPoolExecutor
  and concurrent.futures.ProcessPoolExecutor.
- "callback" in contextlib.ExitStack.callback(),
  contextlib.AsyncExitStack.callback() and
  contextlib.AsyncExitStack.push_async_callback().
- "c" and "typeid" in the create() method of multiprocessing.managers.Server
  and multiprocessing.managers.SharedMemoryServer.
- "obj" in weakref.finalize().

Also allowed to pass arbitrary keyword arguments (even "self" and "func")
if the above arguments are passed as positional argument.
2019-04-01 09:16:35 +03:00
Srinivas Thatiparthy (శ్రీనివాస్ తాటిపర్తి) 70f61b933f bpo-35202: Remove unused imports in Lib directory (GH-10450) 2018-11-15 21:59:19 +09:00
Martin Teichmann dd0e087edc bpo-30306: release arguments of contextmanager (GH-1500)
The arguments to a generator function which is declared as a
contextmanager are stored inside the context manager, and
thus are kept alive, even when it is used as a regular context
manager, and not as a function decorator (where it needs
the original arguments to recreate the generator on each
call).

This is a possible unnecessary memory leak, so this changes
contextmanager.__enter__ to release the saved arguments,
as that method being called means that particular CM instance
isn't going to need to recreate the underlying generator.

Patch by Martin Teichmann.
2018-01-28 14:17:46 +10:00
Ilya Kulakov 1aa094f740 bpo-29302: Implement contextlib.AsyncExitStack. (#4790) 2018-01-25 15:51:18 -05:00
Jesse-Bakker 0784a2e5b1 bpo-10049: Add a "no-op" (null) context manager to contextlib (GH-4464)
Adds a simpler and faster alternative to ExitStack for handling
single optional context managers without having to change the
lexical structure of your code.
2017-11-23 10:23:28 +10:00
Antoine Pitrou a6a4dc816d bpo-31370: Remove support for threads-less builds (#3385)
* Remove Setup.config
* Always define WITH_THREAD for compatibility.
2017-09-07 18:56:24 +02:00
Jelle Zijlstra 57161aac5e bpo-30266: support "= None" pattern in AbstractContextManager (#1448)
contextlib.AbstractContextManager now supports anti-registration
by setting __enter__ = None or __exit__ = None, following the pattern
introduced in bpo-25958.
2017-06-09 08:21:47 -07:00
svelankar 00c75e9a45 bpo-29692: contextlib.contextmanager may incorrectly unchain RuntimeError (GH-949)
contextlib._GeneratorContextManager.__exit__ includes a special case to deal with
PEP 479 RuntimeErrors created when `StopIteration` is thrown into the context
manager body.

Previously this check was too permissive, and undid one level of chaining on *all*
RuntimeError instances, not just those that wrapped a StopIteration instance.
2017-04-11 19:11:13 +10:00
Serhiy Storchaka 9a573a0c23 Added more tests for issue #27122. 2016-06-20 05:30:31 +03:00
Serhiy Storchaka ce1a9f309f Added more tests for issue #27122. 2016-06-20 05:29:54 +03:00
Gregory P. Smith 881aa38972 Issue #27123: When an exception is raised within the context being
managed by a contextlib.ExitStack() and one of the exit stack
generators catches and raises it in a chain, do not re-raise the
original exception when exiting, let the new chained one through.
This avoids the PEP 479 bug described in issue25782.
2016-06-14 09:24:31 -07:00
Gregory P. Smith ba2ecd6841 Issue #27123: When an exception is raised within the context being
managed by a contextlib.ExitStack() and one of the exit stack
generators catches and raises it in a chain, do not re-raise the
original exception when exiting, let the new chained one through.
This avoids the PEP 479 bug described in issue25782.
2016-06-14 09:19:20 -07:00
Brett Cannon 9e080e0e74 Issue #25609: Introduce contextlib.AbstractContextManager and
typing.ContextManager.
2016-04-08 12:15:27 -07:00
Martin Panter 7e3a91a5fc Issue #26136: Upgrade the generator_stop warning to DeprecationWarning
Patch by Anish Shah.
2016-02-10 04:40:48 +00:00
Martin Panter 05da525e55 Issue #25322: Merge contextlib.suppress test fix from 3.4 into 3.5 2015-10-10 11:05:47 +00:00
Martin Panter 7c6420a552 Issue #25322: Fix test for nested contextlib.suppress 2015-10-10 11:04:44 +00:00
Serhiy Storchaka eab7704044 Issue #24336: The contextmanager decorator now works with functions with
keyword arguments called "func" and "self".  Patch by Martin Panter.
2015-06-28 17:08:35 +03:00
Serhiy Storchaka 101ff3541c Issue #24336: The contextmanager decorator now works with functions with
keyword arguments called "func" and "self".  Patch by Martin Panter.
2015-06-28 17:06:07 +03:00
Yury Selivanov 683333955a Issue 24237: Raise PendingDeprecationWarning per PEP 479
Raise PendingDeprecationWarning when generator raises StopIteration
and no __future__ import is used.  Fix offenders in the stdlib
and tests.

See also issue 22906.
Thanks to Nick Coghlan and Berker Peksag for reviews.
2015-05-22 11:16:47 -04:00
Yury Selivanov 8170e8c0d1 PEP 479: Change StopIteration handling inside generators.
Closes issue #22906.
2015-05-09 11:44:30 -04:00
Berker Peksag bb44fe0a0b Issue #22389: Add contextlib.redirect_stderr(). 2014-11-28 23:28:06 +02:00
Nick Coghlan b3c0f4067d Merge removal of issue 20317 debugging code from 3.3 2014-01-24 23:07:16 +10:00
Nick Coghlan add94c9d82 Issue 20317: Remove debugging code from contextlib
- Alex J Burke noticed a debugging raise in the commit that
  fixed the original bug reported in issue 20317
- this showed that multiple iterations through the affected
  loop wasn't actually being tested
2014-01-24 23:05:45 +10:00
Nick Coghlan d58831e688 Merge #20317 from 3.3 2014-01-22 23:04:37 +10:00
Nick Coghlan 09761e7c9c Issue #20317: Don't create a reference loop in ExitStack 2014-01-22 22:24:46 +10:00
Nick Coghlan 8e113b418d Close #19403: make contextlib.redirect_stdout reentrant 2013-11-03 17:00:51 +10:00
Nick Coghlan 561eb5cbe4 Issue #19330: Handle the no-docstrings case in tests 2013-10-26 22:20:43 +10:00
Nick Coghlan 059def58a5 Close #19330 by using public classes in contextlib
- added test cases to ensure docstrings are reasonable
- also updates various comments in contextlib for accuracy
- identifed #19404 as an issue making it difficult to provide
  good help output on generator based context manager instances
2013-10-26 18:08:15 +10:00
Nick Coghlan 0ddaed3456 Close #19396: make test_contextlib tolerate -S 2013-10-26 16:37:47 +10:00
Nick Coghlan 8608d26e81 contextlib doc updates and refactoring
- explain single use, reusable and reentrant in docs
- converted suppress to a reentrant class based impl
- converted redirect_stdout to a reusable impl
- moved both suppress and redirect_stdout behind a functional
  facade
- added reentrancy tests for the updated suppress
- added reusability tests for the updated redirect_stdio
- slightly cleaned up an exception from contextmanager
2013-10-20 00:30:51 +10:00
Nick Coghlan 240f86d7dd Close #19266: contextlib.ignore -> contextlib.suppress
Patch by Zero Piraeus.
2013-10-17 23:40:57 +10:00
Raymond Hettinger 1254b407ac Rename contextlib.ignored() to contextlib.ignore(). 2013-10-10 22:39:39 -07:00
Raymond Hettinger 088cbf2d39 Issue #15805: Add contextlib.redirect_stdout() 2013-10-10 00:46:57 -07:00
Nick Coghlan e6f4631f08 Merge #19092 from 3.3 2013-10-01 23:28:00 +10:00
Nick Coghlan 1a33b2f35b Close #19092: ExitStack now reraises exceptions from __exit__
Report and patch by Hrvoje Nikšić
2013-10-01 23:24:56 +10:00
Brett Cannon 3e9a9ae09d Update various test modules to use unittest.main() for test discovery
instead of manually listing tests for test.support.run_unittest().
2013-06-12 21:25:59 -04:00
Raymond Hettinger e318a883fe Issue #15806: Add contextlib.ignored(). 2013-03-10 22:26:51 -07:00
Nick Coghlan 77452fc121 Close #14969: Improve the handling of exception chaining in contextlib.ExitStack 2012-06-01 22:48:32 +10:00
Nick Coghlan a5bd2a18ce Close #14963: Use an iterative algorithm in contextlib.ExitStack.__exit__ (Patch by Alon Horev) 2012-06-01 00:00:38 +10:00
Nick Coghlan c73e8c2830 Issue #14963: Added test cases for contextlib.ExitStack exception handling behaviour (Initial patch by Alon Horev) 2012-05-31 23:49:26 +10:00
Nick Coghlan 3267a30de1 Close #13585: add contextlib.ExitStack to replace the ill-fated contextlib.nested API 2012-05-21 22:54:43 +10:00
Nick Coghlan 0ded3e307b Issue #11647: allow contextmanager objects to be used as decorators as described in the docs. Initial patch by Ysj Ray. 2011-05-05 23:49:25 +10:00
Ezio Melotti ed3a7d2d60 #10273: Rename assertRegexpMatches and assertRaisesRegexp to assertRegex and assertRaisesRegex. 2010-12-01 02:32:32 +00:00
Michael Foord b3a8984488 Issue 9110. Adding ContextDecorator to contextlib. This enables the creation of APIs that act as decorators as well as context managers. contextlib.contextmanager changed to use ContextDecorator. 2010-06-30 12:17:50 +00:00
Victor Stinner 45df820591 Merged revisions 80552-80556,80564-80566,80568-80571 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r80552 | victor.stinner | 2010-04-27 23:46:03 +0200 (mar., 27 avril 2010) | 3 lines

  Issue #7449, part 1: fix test_support.py for Python compiled without thread
........
  r80553 | victor.stinner | 2010-04-27 23:47:01 +0200 (mar., 27 avril 2010) | 1 line

  Issue #7449, part 2: regrtest.py -j option requires thread support
........
  r80554 | victor.stinner | 2010-04-27 23:51:26 +0200 (mar., 27 avril 2010) | 9 lines

  Issue #7449 part 3, test_doctest: import trace module in test_coverage()

  Import trace module fail if the threading module is missing. test_coverage() is
  only used if test_doctest.py is used with the -c option. This commit allows to
  execute the test suite without thread support.

  Move "import trace" in test_coverage() and use
  test_support.import_module('trace').
........
  r80555 | victor.stinner | 2010-04-27 23:56:26 +0200 (mar., 27 avril 2010) | 6 lines

  Issue #7449, part 4: skip test_multiprocessing if thread support is disabled

  import threading after _multiprocessing to raise a more revelant error message:
  "No module named _multiprocessing". _multiprocessing is not compiled without
  thread support.
........
  r80556 | victor.stinner | 2010-04-28 00:01:24 +0200 (mer., 28 avril 2010) | 8 lines

  Issue #7449, part 5: split Test.test_open() of ctypes/test/test_errno.py

   * Split Test.test_open() in 2 functions: test_open() and test_thread_open()
   * Skip test_open() and test_thread_open() if we are unable to find the C
     library
   * Skip test_thread_open() if thread support is disabled
   * Use unittest.skipUnless(os.name == "nt", ...) on test_GetLastError()
........
  r80564 | victor.stinner | 2010-04-28 00:59:35 +0200 (mer., 28 avril 2010) | 4 lines

  Issue #7449, part 6: fix test_hashlib for missing threading module

  Move @test_support.reap_thread decorator from test_main() to test_threaded_hashing().
........
  r80565 | victor.stinner | 2010-04-28 01:01:29 +0200 (mer., 28 avril 2010) | 6 lines

  Issue #7449, part 7: simplify threading detection in test_capi

   * Skip TestPendingCalls if threading module is missing
   * Test if threading module is present or not, instead of test the presence of
     _testcapi._test_thread_state
........
  r80566 | victor.stinner | 2010-04-28 01:03:16 +0200 (mer., 28 avril 2010) | 4 lines

  Issue #7449, part 8: don't skip the whole test_asynchat if threading is missing

  TestFifo can be executed without the threading module
........
  r80568 | victor.stinner | 2010-04-28 01:14:58 +0200 (mer., 28 avril 2010) | 6 lines

  Issue #7449, part 9: fix test_xmlrpclib for missing threading module

   * Skip testcases using threads if threading module is missing
   * Use "http://" instead of URL in ServerProxyTestCase if threading is missing
     because URL is not set in this case
........
  r80569 | victor.stinner | 2010-04-28 01:33:58 +0200 (mer., 28 avril 2010) | 6 lines

  Partial revert of r80556 (Issue #7449, part 5, fix ctypes test)

  Rewrite r80556: the thread test have to be executed just after the test on
  libc_open() and so the test cannot be splitted in two functions (without
  duplicating code, and I don't want to duplicate code).
........
  r80570 | victor.stinner | 2010-04-28 01:51:16 +0200 (mer., 28 avril 2010) | 8 lines

  Issue #7449, part 10: test_cmd imports trace module using test_support.import_module()

  Use test_support.import_module() instead of import to raise a SkipTest
  exception if the import fail. Import trace fails if the threading module is
  missing.

  See also part 3: test_doctest: import trace module in test_coverage().
........
  r80571 | victor.stinner | 2010-04-28 01:55:59 +0200 (mer., 28 avril 2010) | 6 lines

  Issue #7449, last part (11): fix many tests if thread support is disabled

   * Use try/except ImportError or test_support.import_module() to import thread
     and threading modules
   * Add @unittest.skipUnless(threading, ...) to testcases using threads
........
2010-04-28 22:31:17 +00:00
Florent Xicluna 41fe615539 (partially)
Merged revisions 79534,79537,79539,79558,79606 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79534 | florent.xicluna | 2010-03-31 23:21:54 +0200 (mer, 31 mar 2010) | 2 lines

  Fix test for xml.etree when using a non-ascii path.  And use check_warnings instead of catch_warnings.
........
  r79537 | florent.xicluna | 2010-03-31 23:40:32 +0200 (mer, 31 mar 2010) | 2 lines

  Fix typo
........
  r79539 | florent.xicluna | 2010-04-01 00:01:03 +0200 (jeu, 01 avr 2010) | 2 lines

  Replace catch_warnings with check_warnings when it makes sense.  Use assertRaises context manager to simplify some tests.
........
  r79558 | florent.xicluna | 2010-04-01 20:17:09 +0200 (jeu, 01 avr 2010) | 2 lines

  #7092: Fix some -3 warnings, and fix Lib/platform.py when the path contains a double-quote.
........
  r79606 | florent.xicluna | 2010-04-02 19:26:42 +0200 (ven, 02 avr 2010) | 2 lines

  Backport some robotparser test and skip the test if the external resource is not available.
........
2010-04-02 18:52:12 +00:00
Georg Brandl 1b37e8728c Merged revisions 78093 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r78093 | georg.brandl | 2010-02-07 18:03:15 +0100 (So, 07 Feb 2010) | 1 line

  Remove unused imports in test modules.
........
2010-03-14 10:45:50 +00:00
R. David Murray 378c0cf5ab Merged revisions 78351 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r78351 | r.david.murray | 2010-02-22 19:24:49 -0500 (Mon, 22 Feb 2010) | 5 lines

  Issue 6292: for the moment at least, the test suite passes if run
  with -OO.  Tests requiring docstrings are skipped.  Patch by
  Brian Curtin, thanks to Matias Torchinsky for helping review and
  improve the patch.
........
2010-02-24 01:46:21 +00:00
Benjamin Peterson c8c0d78d09 remove warnings supression 2009-07-01 01:39:51 +00:00
Raymond Hettinger 9c4d0edd64 Removed contextlib.nested() 2009-07-01 01:32:12 +00:00