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* Revert "bpo-29587: Enable implicit exception chaining with gen.throw() ↵Victor Stinner2020-04-301-1/+0
| | | | | (GH-19811)" (#19821) This reverts commit 2514a632fb7d37be24c2059d0e286d35600f9795.
* bpo-29587: Enable implicit exception chaining with gen.throw() (GH-19811)Chris Jerdonek2020-04-301-0/+1
| | | | | Before this commit, if an exception was active inside a generator when calling gen.throw(), then that exception was lost (i.e. there was no implicit exception chaining). This commit fixes that.
* bpo-40394 - difflib.SequenceMatched.find_longest_match default args (GH-19742)lrjball2020-04-292-0/+2
| | | | | * bpo-40394 - difflib.SequenceMatched.find_longest_match default args Added default args to find_longest_match, as well as related tests.
* bpo-40389: Improve repr of typing.Optional (#19714)Vlad Serebrennikov2020-04-291-0/+1
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* bpo-40291: Add support for CAN_J1939 sockets (GH-19538)karl ding2020-04-291-0/+1
| | | | Add support for CAN_J1939 sockets that wrap SAE J1939 protocol functionality provided by Linux 5.4+ kernels.
* bpo-1635741: Port _stat module to multiphase initialization (GH-19798)Dong-hee Na2020-04-301-0/+1
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* bpo-40328: Add tool for generating cjk mapping headers (GH-19602)Dong-hee Na2020-04-301-0/+1
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* bpo-40286: Remove C implementation of Random.randbytes() (GH-19797)Victor Stinner2020-04-291-0/+3
| | | | | Remove _random.Random.randbytes(): the C implementation of randbytes(). Implement the method in Python to ease subclassing: randbytes() now directly reuses getrandbits().
* bpo-40228: More robust frame.setlineno. (GH-19437)Mark Shannon2020-04-291-0/+1
| | | More robust frame.setlineno. Makes no assumptions about source->bytecode translation.
* bpo-40436: Fix code parsing gdb version (GH-19792)Victor Stinner2020-04-291-0/+1
| | | test_gdb and test.pythoninfo now check gdb command exit code.
* bpo-39995: Fix concurrent.futures _ThreadWakeup (GH-19760)Victor Stinner2020-04-291-0/+2
| | | | Fix a race condition in concurrent.futures._ThreadWakeup: access to _ThreadWakeup is now protected with the shutdown lock.
* bpo-40421: Add PyFrame_GetBack() function (GH-19765)Victor Stinner2020-04-291-0/+1
| | | | | | New PyFrame_GetBack() function: get the frame next outer frame. Replace frame->f_back with PyFrame_GetBack(frame) in most code but frameobject.c, ceval.c and genobject.c.
* bpo-40429: PyThreadState_GetFrame() returns a strong ref (GH-19781)Victor Stinner2020-04-291-0/+2
| | | | The PyThreadState_GetFrame() function now returns a strong reference to the frame.
* bpo-40428: Remove PyTuple_ClearFreeList() function (GH-19769)Victor Stinner2020-04-291-0/+11
| | | | | | | | | | | | | | | | | | | Remove the following function from the C API: * PyAsyncGen_ClearFreeLists() * PyContext_ClearFreeList() * PyDict_ClearFreeList() * PyFloat_ClearFreeList() * PyFrame_ClearFreeList() * PyList_ClearFreeList() * PySet_ClearFreeList() * PyTuple_ClearFreeList() Make these functions private, move them to the internal C API and change their return type to void. Call explicitly PyGC_Collect() to free all free lists. Note: PySet_ClearFreeList() did nothing.
* bpo-38880: List interpreters associated with a channel end (GH-17323)Lewis Gaul2020-04-282-0/+3
| | | | | This PR adds the functionality requested by https://github.com/ericsnowcurrently/multi-core-python/issues/52. Automerge-Triggered-By: @ericsnowcurrently
* bpo-40431: Fix syntax typo in turtledemo (GH-19777)Miro Hrončok2020-04-291-0/+1
| | | | | | *** File "/usr/lib64/python3.9/turtledemo/__main__.py", line 275 bg="#d00" if clear == NORMAL else"#fca") ^ SyntaxError: invalid string prefix
* bpo-39966: Revert "bpo-25597: Ensure wraps' return value is used for magic ↵Karthikeyan Singaravelan2020-04-281-0/+2
| | | | | | | methods in MagicMock" (GH-19734) * Revert "bpo-25597: Ensure wraps' return value is used for magic methods in MagicMock (#16029)" This reverts commit 72b1004657e60c900e4cd031b2635b587f4b280e.
* bpo-40025: Require _generate_next_value_ to be defined before members (GH-19098)Ethan Onstott2020-04-282-0/+2
| | | require `_generate_next_value_` to be defined before members
* bpo-40421: Add PyFrame_GetCode() function (GH-19757)Victor Stinner2020-04-281-0/+2
| | | | | | | | | PyFrame_GetCode(frame): return a borrowed reference to the frame code. Replace frame->f_code with PyFrame_GetCode(frame) in most code, except in frameobject.c, genobject.c and ceval.c. Also add PyFrame_GetLineNumber() to the limited C API.
* Merge tag 'v3.9.0a6'Łukasz Langa2020-04-28119-254/+1211
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| * Python 3.9.0a6v3.9.0a6Łukasz Langa2020-04-27119-254/+1211
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* | bpo-30966: concurrent.futures.Process.shutdown() closes queue (GH-19738)Victor Stinner2020-04-271-0/+2
| | | | | | | | Process.shutdown(wait=True) of concurrent.futures now closes explicitly the result queue.
* | bpo-30966: Add multiprocessing.SimpleQueue.close() (GH-19735)Victor Stinner2020-04-271-0/+2
| | | | | | | | | | | | Add a new close() method to multiprocessing.SimpleQueue to explicitly close the queue. Automerge-Triggered-By: @pitrou
* | bpo-40375: Implement imaplib.IMAP4.unselect (GH-19712)Dong-hee Na2020-04-271-0/+1
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* | bpo-40217: Clean code in PyType_FromSpec_Alloc and add NEWS entry (GH-19733)Pablo Galindo2020-04-271-0/+5
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* bpo-40398: Fix typing.get_args() for special generic aliases. (GH-19720)Serhiy Storchaka2020-04-271-0/+2
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* bpo-38387: Formally document PyDoc_STRVAR and PyDoc_STR macros (GH-16607)Brad Solomon2020-04-261-0/+1
| | | | | | | Adds a short description of `PyDoc_STRVAR` and `PyDoc_STR` to "Useful macros" section of C-API docs. Currently, there is [one lone mention](https://docs.python.org/3/c-api/module.html?highlight=pydoc_strvar#c.PyModuleDef) in the C-API reference, despite the fact that `PyDoc_STRVAR` is ubiquitous to `Modules/`. Additionally, this properly uses `c:macro` within `Doc/c-api/module.rst` to link.
* bpo-40396: Support GenericAlias in the typing functions. (GH-19718)Serhiy Storchaka2020-04-261-0/+3
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* bpo-40275: Avoid importing logging in test.support (GH-19601)Serhiy Storchaka2020-04-251-0/+2
| | | | | Import logging lazily in assertLogs() in unittest. Move TestHandler from test.support to logging_helper.
* bpo-40275: Avoid importing asyncio in test.support (GH-19600)Serhiy Storchaka2020-04-251-0/+2
| | | | | * Import asyncio lazily in unittest (only when IsolatedAsyncioTestCase is used). * Import asyncio.events lazily in test.support.
* closes bpo-40385: Remove Tools/scripts/checkpyc.py (GH-19709)Ammar Askar2020-04-241-0/+2
| | | | | This is one of the few files that has intimate knowledge of the pyc file format. Since it lacks tests it tends to become outdated fairly quickly. At present it has been broken since the introduction of PEP 552.
* bpo-40360: Deprecate lib2to3 module in light of PEP 617 (GH-19663)Carl Meyer2020-04-241-0/+1
| | | | | Deprecate lib2to3 module in light of PEP 617. We anticipate removal in the 3.12 timeframe.
* bpo-38061: subprocess uses closefrom() on FreeBSD (GH-19697)Victor Stinner2020-04-241-0/+11
| | | | | | | | | | | | | Optimize the subprocess module on FreeBSD using closefrom(). A single close(fd) syscall is cheap, but when sysconf(_SC_OPEN_MAX) is high, the loop calling close(fd) on each file descriptor can take several milliseconds. The workaround on FreeBSD to improve performance was to load and mount the fdescfs kernel module, but this is not enabled by default. Initial patch by Ed Maste (emaste), Conrad Meyer (cem), Kyle Evans (kevans) and Kubilay Kocak (koobs): https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242274
* bpo-38061: os.closerange() uses closefrom() on FreeBSD (GH-19696)Victor Stinner2020-04-241-0/+6
| | | | | | | | | On FreeBSD, os.closerange(fd_low, fd_high) now calls closefrom(fd_low) if fd_high is greater than or equal to sysconf(_SC_OPEN_MAX). Initial patch by Ed Maste (emaste), Conrad Meyer (cem), Kyle Evans (kevans) and Kubilay Kocak (koobs): https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242274
* gdbinit: Use proper define syntax (GH-19557)Florian Bruhin2020-04-231-1/+1
| | | | | | | Using `def` rather than `define` results in: Ambiguous command "def pu": define, define-prefix. Automerge-Triggered-By: @csabella
* bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)Pablo Galindo2020-04-221-0/+5
| | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
* bpo-39939: Add str.removeprefix and str.removesuffix (GH-18939)sweeneyde2020-04-222-0/+6
| | | | | Added str.removeprefix and str.removesuffix methods and corresponding bytes, bytearray, and collections.UserString methods to remove affixes from a string if present. See PEP 616 for a full description.
* bpo-40138: Fix Windows os.waitpid() for large exit code (GH-19637)Victor Stinner2020-04-221-0/+2
| | | | | | | | Fix the Windows implementation of os.waitpid() for exit code larger than "INT_MAX >> 8". The exit status is now interpreted as an unsigned number. os.waitstatus_to_exitcode() now accepts wait status larger than INT_MAX.
* bpo-38329: python.org macOS installers now update Current symlink (GH-19650)Ned Deily2020-04-221-0/+4
| | | | | | | Previously, python.org macOS installers did not alter the Current version symlink in /Library/Frameworks/Python.framework/Versions when installing a version of Python 3.x, only when installing 2.x. Now that Python 2 is retired, it's time to change that. This should make it a bit easier to embed Python 3 into other macOS applications.
* bpo-38360: macOS: support alternate form of -isysroot flag (GH-16480)Joshua Root2020-04-221-0/+1
| | | | | | | It is possible to use either '-isysroot /some/path' (with a space) or '-isysroot/some/path' (no space in between). Support both forms in places where special handling of -isysroot is done, rather than just the first form. Co-authored-by: Ned Deily <nad@python.org>
* bpo-38439: Add 256px IDLE icon (GH-17473)Miro Hrončok2020-04-221-0/+2
| | | | Icon author: Andrew Clover, bpo-1490384
* bpo-40164: Update macOS installer builds to use OpenSSL 1.1.1g. (GH-19642)Ned Deily2020-04-211-0/+1
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* bpo-40313: speed up bytes.hex() (GH-19594)sweeneyde2020-04-201-0/+1
| | | Automerge-Triggered-By: @gpshead
* bpo-39942:Fix failure in `TypeVar` when missing `__name__` (GH-19616)HongWeipeng2020-04-201-0/+2
| | | https://bugs.python.org/issue39942
* bpo-40330: Fix utf-8 size check in ShareableList (GH-19606)Antoine Pitrou2020-04-201-0/+2
| | | | | The item size must be checked after encoding to bytes, not before. Automerge-Triggered-By: @pitrou
* bpo-40148: Add PurePath.with_stem() (GH-19295)Tim Hoffmann2020-04-191-0/+1
| | | | Add PurePath.with_stem()
* bpo-38891: avoid quadratic item access performance of ShareableList (GH-18996)Thomas Krennwallner2020-04-191-0/+3
| | | | | | | | Avoid linear runtime of ShareableList.__getitem__ and ShareableList.__setitem__ by storing running allocated bytes in ShareableList._allocated_bytes instead of the number of bytes for a particular stored item. Co-authored-by: Antoine Pitrou <antoine@python.org>
* bpo-39207: Spawn workers on demand in ProcessPoolExecutor (GH-19453)Kyle Stanley2020-04-191-0/+4
| | | | | Roughly based on https://github.com/python/cpython/commit/904e34d4e6b6007986dcc585d5c553ee8ae06f95, but with a few substantial differences. /cc @pitrou @brianquinlan
* bpo-40325: Deprecate set object support in random.sample() (GH-19591)Raymond Hettinger2020-04-191-0/+1
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* bpo-27635: Fix pickle documentation about `__new__` not being called. (GH-19269)Furkan Önder2020-04-181-0/+2
| | | Automerge-Triggered-By: @pitrou
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