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* bpo-1635741: Convert _sre types to heap types and establish module state ↵Erlend Egeberg Aasland2020-11-201-0/+4
| | | | (PEP 384) (GH-23393)
* bpo-42413: socket.timeout is now an alias of TimeoutError (GH-23413)Christian Heimes2020-11-2015-39/+41
| | | Signed-off-by: Christian Heimes <christian@python.org>
* bpo-42345: Fix hash implementation of typing.Literal (GH-23383)Yurii Karabas2020-11-191-0/+5
| | | | | | | Fix hash implementation of `typing.Literal`. Update docs regarding `typing.Litaral` caching. Base implementation was done in PR #23294.
* bpo-42398: Fix "make regen-all" race condition (GH-23362)Victor Stinner2020-11-181-7/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a race condition in "make regen-all" when make -jN option is used to run jobs in parallel. The clinic.py script now only use atomic write to write files. Moveover, generated files are now left unchanged if the content does not change, to not change the file modification time. The "make regen-all" command runs "make clinic" and "make regen-importlib" targets: * "make regen-importlib" builds object files (ex: Modules/_weakref.o) from source files (ex: Modules/_weakref.c) and clinic files (ex: Modules/clinic/_weakref.c.h) * "make clinic" always rewrites all clinic files (ex: Modules/clinic/_weakref.c.h) Since there is no dependency between "clinic" and "regen-importlib" Makefile targets, these two targets can be run in parallel. Moreover, half of clinic.py file writes are not atomic and so there is a race condition when "make regen-all" runs jobs in parallel using make -jN option (which can be passed in MAKEFLAGS environment variable). Fix clinic.py to make all file writes atomic: * Add write_file() function to ensure that all file writes are atomic: write into a temporary file and then use os.replace(). * Moreover, write_file() doesn't recreate or modify the file if the content does not change to avoid modifying the file modification file. * Update test_clinic to verify these assertions with a functional test. * Remove Clinic.force attribute which was no longer used, whereas Clinic.verify remains useful.
* bpo-41561: skip test_min_max_version_mismatch (GH-22308)Christian Heimes2020-11-181-0/+1
| | | | | skip test_min_max_version_mismatch when TLS 1.0 is not available Signed-off-by: Christian Heimes <christian@python.org>
* bpo-41625: Skip os.splice() tests on AIX (GH-23354)Victor Stinner2020-11-171-0/+8
| | | | On AIX, splice() only works with a socket, whereas the test uses a pipe.
* bpo-42349: Compiler clean up. More yak-shaving for PEP 626. (GH-23267)Mark Shannon2020-11-172-24/+49
| | | Make sure that CFG from compiler front-end is correct. Be a bit more aggressive in the compiler back-end.
* bpo-40637: Don't test builtin PBKDF2 without builtin hashes (GH-20980)Christian Heimes2020-11-171-9/+18
| | | | | | | Skip testing of pure Python PBKDF2 when one or more builtin hash module is not available. Otherwise the import of hashlib prints noise on stderr. Signed-off-by: Christian Heimes <christian@python.org>
* bpo-42345: Fix three issues with typing.Literal parameters (GH-23294)Yurii Karabas2020-11-171-0/+25
| | | | | | | Literal equality no longer depends on the order of arguments. Fix issue related to `typing.Literal` caching by adding `typed` parameter to `typing._tp_cache` function. Add deduplication of `typing.Literal` arguments.
* bpo-42381: Allow walrus in set literals and set comprehensions (GH-23332)Pablo Galindo2020-11-171-3/+57
| | | | | | | | | | | Currently walruses are not allowerd in set literals and set comprehensions: >>> {y := 4, 4**2, 3**3} File "<stdin>", line 1 {y := 4, 4**2, 3**3} ^ SyntaxError: invalid syntax but they should be allowed as well per PEP 572
* bpo-41625: Expose the splice() system call in the os module (GH-21947)Pablo Galindo2020-11-171-0/+117
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* bpo-42316: Allow unparenthesized walrus operator in indexes (GH-23317)Lysandros Nikolaou2020-11-161-0/+21
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* bpo-42374: Allow unparenthesized walrus in genexps (GH-23319)Lysandros Nikolaou2020-11-161-0/+9
| | | | | This fixes a regression that was introduced by the new parser. Automerge-Triggered-By: GH:lysnikolaou
* bpo-42350: Fix Thread._reset_internal_locks() (GH-23268)Victor Stinner2020-11-161-0/+29
| | | | | Fix the threading.Thread class at fork: do nothing if the thread is already stopped (ex: fork called at Python exit). Previously, an error was logged in the child process.
* bpo-42332: Add weakref slot to types.GenericAlias (GH-23250)kj2020-11-161-38/+48
| | | Automerge-Triggered-By: GH:gvanrossum
* bpo-42318: Fix support of non-BMP characters in Tkinter on macOS (GH-23281)Serhiy Storchaka2020-11-151-6/+40
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* bpo-42131: Add PEP 451-related methods to zipimport (GH-23187)Brett Cannon2020-11-131-18/+53
| | | | | Specifically, find_spec(), create_module(), and exec_module(). Co-authored-by: Nick Coghlan <ncoghlan@gmail.com>
* bpo-41001: Add os.eventfd() (#20930)Christian Heimes2020-11-131-0/+86
| | | Co-authored-by: Kyle Stanley <aeros167@gmail.com>
* bpo-42246: Eliminate jumps to exit blocks by copying those blocks. (#23251)Mark Shannon2020-11-122-117/+114
| | | * Compiler: eliminate jumps to short exit blocks by copying.
* bpo-42308: Add threading.__excepthook__ (GH-23218)Mario Corchero2020-11-121-0/+21
| | | | | Add threading.__excepthook__ to allow retrieving the original value of threading.excepthook in case it is set to a broken or a different value.
* bpo-42246: Partial implementation of PEP 626. (GH-23113)Mark Shannon2020-11-125-9/+20
| | | * Implement new line number table format, as defined in PEP 626.
* bpo-39411: pyclbr rewrite on AST (#18103)Batuhan Taskaya2020-11-111-5/+2
| | | | | - Rewrite pyclbr using an AST processor - Add is_async to the pyclbr.Function
* bpo-42140: Improve asyncio.wait function (GH-22938)Diogo Dutra2020-11-101-0/+24
| | | | | | | | | | # Improve asyncio.wait function The original code creates the futures set two times. We can create this set before, avoiding the second creation. This new behaviour [breaks the aiokafka library](https://github.com/aio-libs/aiokafka/pull/672), because it gives an iterator to that function, so the second iteration become empty. Automerge-Triggered-By: GH:1st1
* bpo-42085: Introduce dedicated entry in PyAsyncMethods for sending values ↵Vladimir Matveev2020-11-101-1/+1
| | | | (#22780)
* bpo-42183: Fix a stack overflow error for asyncio Task or Future repr() ↵Andrew Svetlov2020-11-101-0/+18
| | | | | | | | (GH-23020) The overflow occurs under some circumstances when a task or future recursively returns itself. Co-authored-by: Kyle Stanley <aeros167@gmail.com>
* Fix typo in test_array.py (GH-23189)Ikko Ashimine2020-11-101-1/+1
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* bpo-42260: Compute the path config in the main init (GH-23211)Victor Stinner2020-11-101-7/+19
| | | | | | | | | | | | | | | | | | | | | The path configuration is now computed in the "main" initialization. The core initialization no longer computes it. * Add _PyConfig_Read() function to read the configuration without computing the path configuration. * pyinit_core() no longer computes the path configuration: it is now computed by init_interp_main(). * The path configuration output members of PyConfig are now optional: * executable * base_executable * prefix * base_prefix * exec_prefix * base_exec_prefix * _PySys_UpdateConfig() now skips NULL strings in PyConfig. * _testembed: Rename test_set_config() to test_init_set_config() for consistency with other tests.
* bpo-36310: Allow pygettext.py to detect calls to gettext in f-strings. ↵jack11422020-11-091-0/+70
| | | | | | | (GH-19875) Adds support to Tools/i18n/pygettext.py for gettext calls in f-strings. This process is done by parsing the f-strings, processing each value, and flagging the ones which contain a gettext call. Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com>
* bpo-41543: contextlib.nullcontext can fill in for an async context manager ↵Tom Gringauz2020-11-091-1/+13
| | | | | (GH-21870) Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>
* bpo-40624: Add support for the XPath != operator in xml.etree (GH-22147)Ammar Askar2020-11-091-0/+35
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* bpo-42233: Add union type expression support for GenericAlias and fix ↵kj2020-11-091-0/+22
| | | | de-duplicating of GenericAlias (GH-23077)
* bpo-41100: Support macOS 11 and Apple Silicon (GH-22855)Ronald Oussoren2020-11-085-1/+262
| | | | | | | | | | | Co-authored-by: Lawrence D’Anna <lawrence_danna@apple.com> * Add support for macOS 11 and Apple Silicon (aka arm64) As a side effect of this work use the system copy of libffi on macOS, and remove the vendored copy * Support building on recent versions of macOS while deploying to older versions This allows building installers on macOS 11 while still supporting macOS 10.9.
* bpo-41832: PyType_FromModuleAndSpec() now accepts NULL tp_doc (GH-23123)Hai Shi2020-11-061-0/+3
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* bpo-26389: Allow passing an exception object in the traceback module (GH-22610)Zackery Spytz2020-11-051-0/+20
| | | | | | The format_exception(), format_exception_only(), and print_exception() functions can now take an exception object as a positional-only argument. Co-Authored-By: Matthias Bussonnier <bussonniermatthias@gmail.com>
* bpo-42260: PyConfig_Read() only parses argv once (GH-23168)Victor Stinner2020-11-052-6/+12
| | | | | | | | | | | | The PyConfig_Read() function now only parses PyConfig.argv arguments once: PyConfig.parse_argv is set to 2 after arguments are parsed. Since Python arguments are strippped from PyConfig.argv, parsing arguments twice would parse the application options as Python options. * Rework the PyConfig documentation. * Fix _testinternalcapi.set_config() error handling. * SetConfigTests no longer needs parse_argv=0 when restoring the old configuration.
* bpo-42260: Add _PyConfig_FromDict() (GH-23167)Victor Stinner2020-11-052-0/+257
| | | | | | | * Rename config_as_dict() to _PyConfig_AsDict(). * Add 'module_search_paths_set' to _PyConfig_AsDict(). * Add _PyConfig_FromDict(). * Add get_config() and set_config() to _testinternalcapi. * Add config_check_consistency().
* bpo-42266: Handle monkey-patching descriptors in LOAD_ATTR cache (GH-23157)Pablo Galindo2020-11-051-0/+23
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* bpo-40816 Add AsyncContextDecorator class (GH-20516)Kazantcev Andrey2020-11-051-0/+27
| | | | Co-authored-by: Yury Selivanov <yury@edgedb.com>
* bpo-42260: Add _PyInterpreterState_SetConfig() (GH-23158)Victor Stinner2020-11-041-0/+9
| | | | | | | | * Inline _PyInterpreterState_SetConfig(): replace it with _PyConfig_Copy(). * Add _PyErr_SetFromPyStatus() * Add _PyInterpreterState_GetConfigCopy() * Add a new _PyInterpreterState_SetConfig() function. * Add an unit which gets, modifies, and sets the config.
* Disable peg generator tests when building with PGO (GH-23141)serge-sans-paille2020-11-041-0/+6
| | | | | Otherwise, when running the testsuite, test_peg_generator tries to compile C code using the optimized flags and fails because it cannot find the profile data.
* bpo-42236: os.device_encoding() respects UTF-8 Mode (GH-23119)Victor Stinner2020-11-041-0/+27
| | | | On Unix, the os.device_encoding() function now returns 'UTF-8' rather than the device encoding if the Python UTF-8 Mode is enabled.
* bpo-42251: Add gettrace and getprofile to threading (GH-23125)Mario Corchero2020-11-041-0/+21
| | | This allows to retrieve the functions that were set in these two, which might differ from sys.gettrace and sys.getprofile within a thread.
* bpo-26789: Fix logging.FileHandler._open() at exit (GH-23053)Victor Stinner2020-11-021-5/+38
| | | | | | | | | | | | | | | | | | | The logging.FileHandler class now keeps a reference to the builtin open() function to be able to open or reopen the file during Python finalization. Fix errors like: Exception ignored in: (...) Traceback (most recent call last): (...) File ".../logging/__init__.py", line 1463, in error File ".../logging/__init__.py", line 1577, in _log File ".../logging/__init__.py", line 1587, in handle File ".../logging/__init__.py", line 1649, in callHandlers File ".../logging/__init__.py", line 948, in handle File ".../logging/__init__.py", line 1182, in emit File ".../logging/__init__.py", line 1171, in _open NameError: name 'open' is not defined
* bpo-42103: Improve validation of Plist files. (GH-22882)Serhiy Storchaka2020-11-021-49/+340
| | | | | | | | * Prevent some possible DoS attacks via providing invalid Plist files with extremely large number of objects or collection sizes. * Raise InvalidFileException for too large bytes and string size instead of returning garbage. * Raise InvalidFileException instead of ValueError for specific invalid datetime (NaN). * Raise InvalidFileException instead of TypeError for non-hashable dict keys. * Add more tests for invalid Plist files.
* Revert "bpo-37193: remove thread objects which finished process its request ↵Jason R. Coombs2020-11-021-24/+0
| | | | | (GH-13893)" (GH-23107) This reverts commit c41559021213cfc9dc62a83fc63306b3bdc3e64b.
* bpo-42224: Fix test_format when locale does not expect number grouping ↵Lysandros Nikolaou2020-11-021-2/+5
| | | | (GH-23067)
* bpo-41435: Add sys._current_exceptions() function (GH-21689)Julien Danjou2020-11-021-0/+67
| | | | | | This adds a new function named sys._current_exceptions() which is equivalent ot sys._current_frames() except that it returns the exceptions currently handled by other threads. It is equivalent to calling sys.exc_info() for each running thread.
* bpo-41229: Update docs for explicit aclose()-required cases and add ↵Joongi Kim2020-11-021-1/+58
| | | | | | | | | | | | | | | | | | | contextlib.aclosing() method (GH-21545) This is a PR to: * Add `contextlib.aclosing` which ia analogous to `contextlib.closing` but for async-generators with an explicit test case for [bpo-41229]() * Update the docs to describe when we need explicit `aclose()` invocation. which are motivated by the following issues, articles, and examples: * [bpo-41229]() * https://github.com/njsmith/async_generator * https://vorpus.org/blog/some-thoughts-on-asynchronous-api-design-in-a-post-asyncawait-world/#cleanup-in-generators-and-async-generators * https://www.python.org/dev/peps/pep-0533/ * https://github.com/achimnol/aiotools/blob/ef7bf0cea7af/src/aiotools/context.py#L152 Particuarly regarding [PEP-533](https://www.python.org/dev/peps/pep-0533/), its acceptance (`__aiterclose__()`) would make this little addition of `contextlib.aclosing()` unnecessary for most use cases, but until then this could serve as a good counterpart and analogy to `contextlib.closing()`. The same applies for `contextlib.closing` with `__iterclose__()`. Also, still there are other use cases, e.g., when working with non-generator objects with `aclose()` methods.
* bpo-37193: remove thread objects which finished process its request (GH-13893)MARUYAMA Norihiro2020-11-011-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * bpo-37193: remove the thread which finished process request from threads list * rename variable t to thread. * don't remove thread from list if it is daemon. * use lock to protect self._threads. * use finally block in case of exception from shutdown_request(). * check "not thread.daemon" before lock to avoid holding the lock if it's unnecessary. * fix the place of _threads_lock. * separate code to remove a current thread into a function. * check ValueError when removing thread. * fix wrong code which all instance shared same lock. * Extract thread management into a _Threads class to encapsulate atomic operations and separate concerns. * Replace multiple references of 'block_on_close' with one, avoiding the possibility that 'block_on_close' could change during the course of processing requests. Now, there's exactly one _threads object with behavior fixed for the duration. * Add docstrings to private classes. * Add test to ensure that a ThreadingTCPServer can be closed without serving any requests. * Use _NoThreads as the default value. Fixes AttributeError when server is closed without serving any requests. * Add blurb * Add test capturing failure. Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
* bpo-42233: Correctly repr GenericAlias when used with typing module (GH-23081)kj2020-11-011-0/+7
| | | | | | | | | | | | | | | Noticed by @serhiy-storchaka in the bpo. `typing`'s types were not showing the parameterized generic. Eg. previously: ```python >>> typing.Union[dict[str, float], list[int]] 'typing.Union[dict, list]' ``` Now: ```python >>> typing.Union[dict[str, float], list[int]] 'typing.Union[dict[str, float], list[int]]' ``` Automerge-Triggered-By: GH:gvanrossum
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