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* bpo-40503: PEP 615: Tests and implementation for zoneinfo (GH-19909)Paul Ganssle2020-05-1627-2/+6383
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the initial implementation of PEP 615, the zoneinfo module, ported from the standalone reference implementation (see https://www.python.org/dev/peps/pep-0615/#reference-implementation for a link, which has a more detailed commit history). This includes (hopefully) all functional elements described in the PEP, but documentation is found in a separate PR. This includes: 1. A pure python implementation of the ZoneInfo class 2. A C accelerated implementation of the ZoneInfo class 3. Tests with 100% branch coverage for the Python code (though C code coverage is less than 100%). 4. A compile-time configuration option on Linux (though not on Windows) Differences from the reference implementation: - The module is arranged slightly differently: the accelerated module is `_zoneinfo` rather than `zoneinfo._czoneinfo`, which also necessitates some changes in the test support function. (Suggested by Victor Stinner and Steve Dower.) - The tests are arranged slightly differently and do not include the property tests. The tests live at test/test_zoneinfo/test_zoneinfo.py rather than test/test_zoneinfo.py or test/test_zoneinfo/__init__.py because we may do some refactoring in the future that would likely require this separation anyway; we may: - include the property tests - automatically run all the tests against both pure Python and C, rather than manually constructing C and Python test classes (similar to the way this works with test_datetime.py, which generates C and Python test cases from datetimetester.py). - This includes a compile-time configuration option on Linux (though not on Windows); added with much help from Thomas Wouters. - Integration into the CPython build system is obviously different from building a standalone zoneinfo module wheel. - This includes configuration to install the tzdata package as part of CI, though only on the coverage jobs. Introducing a PyPI dependency as part of the CI build was controversial, and this is seen as less of a major change, since the coverage jobs already depend on pip and PyPI. Additional changes that were introduced as part of this PR, most / all of which were backported to the reference implementation: - Fixed reference and memory leaks With much debugging help from Pablo Galindo - Added smoke tests ensuring that the C and Python modules are built The import machinery can be somewhat fragile, and the "seamlessly falls back to pure Python" nature of this module makes it so that a problem building the C extension or a failure to import the pure Python version might easily go unnoticed. - Adjustments to zoneinfo.__dir__ Suggested by Petr Viktorin. - Slight refactorings as suggested by Steve Dower. - Removed unnecessary if check on std_abbr Discovered this because of a missing line in branch coverage.
* bpo-40457: Support OpenSSL without TLS 1.0/1.1 (GH-19862)Christian Heimes2020-05-163-38/+33
| | | | | | | | | | | OpenSSL can be build without support for TLS 1.0 and 1.1. The ssl module now correctly adheres to OPENSSL_NO_TLS1 and OPENSSL_NO_TLS1_1 flags. Also update multissltest to test with latest OpenSSL and LibreSSL releases. Signed-off-by: Christian Heimes <christian@python.org> Automerge-Triggered-By: @tiran
* bpo-39075: types.SimpleNamespace no longer sorts attributes in its repr ↵Zackery Spytz2020-05-164-7/+9
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* bpo-31033: Add a msg argument to Future.cancel() and Task.cancel() (GH-19979)Chris Jerdonek2020-05-1510-73/+358
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* Add Andrew York to ACKS for GH-19622. (GH-20105)Chris Jerdonek2020-05-151-0/+1
| | | | This updates ACKS for commit 003708bcf8f2c58d4b65f68318acf164d713e008 contributed by Andrew York.
* bpo-40637: Add option to disable builtin hashes (GH-20121)Christian Heimes2020-05-156-30/+158
| | | | | Signed-off-by: Christian Heimes <christian@python.org> Automerge-Triggered-By: @tiran
* bpo-40445: Update compileall.compile_dir docs (GH-19806)Shantanu2020-05-151-1/+2
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* bpo-40636: Clarify the zip built-in docstring. (GH-20118)Gregory P. Smith2020-05-152-6/+10
| | | | | | | | | | | | | | | | | | | | | Clarify the zip built-in docstring. This puts much simpler text up front along with an example. As it was, the zip built-in docstring was technically correct. But too technical for the reader who shouldn't _need_ to know about `__next__` and `StopIteration` as most people do not need to understand the internal implementation details of the iterator protocol in their daily life. This is a documentation only change, intended to be backported to 3.8; it is only tangentially related to PEP-618 which might offer new behavior options in the future. Wording based a bit more on enumerate per Brandt's suggestion. This gets rid of the legacy wording paragraph which seems too tied to implementation details of the iterator protocol which isn't relevant here. Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
* bpo-40163: Fix multissltest download of old OpenSSL (GH-19329)Christian Heimes2020-05-152-11/+44
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* bpo-40607: Reraise exception during task cancelation in asyncio.wait_for() ↵romasku2020-05-155-6/+66
| | | | | | | | | | | | | | | (GH-20054) Currently, if asyncio.wait_for() timeout expires, it cancels inner future and then always raises TimeoutError. In case those future is task, it can handle cancelation mannually, and those process can lead to some other exception. Current implementation silently loses thoses exception. To resolve this, wait_for will check was the cancelation successfull or not. In case there was exception, wait_for will reraise it. Co-authored-by: Roman Skurikhin <roman.skurikhin@cruxlab.com>
* bpo-40515: Require OPENSSL_THREADS (GH-19953)Christian Heimes2020-05-153-1/+12
| | | | | | | The ``ssl`` and ``hashlib`` modules now actively check that OpenSSL is build with thread support. Python 3.7.0 made thread support mandatory and no longer works safely with a no-thread builds. Signed-off-by: Christian Heimes <christian@python.org>
* bpo-40479: Test with latest OpenSSL versions (GH-20108)Christian Heimes2020-05-152-3/+60
| | | | | | | | | | | | | * 1.0.2u (EOL) * 1.1.0l (EOL) * 1.1.1g * 3.0.0-alpha2 (disabled for now) Build the FIPS provider and create a FIPS configuration file for OpenSSL 3.0.0. Signed-off-by: Christian Heimes <christian@python.org> Automerge-Triggered-By: @tiran
* bpo-40479: Fix hashlib issue with OpenSSL 3.0.0 (GH-20107)Christian Heimes2020-05-153-8/+18
| | | | | | | | | | OpenSSL 3.0.0-alpha2 was released today. The FIPS_mode() function has been deprecated and removed. It no longer makes sense with the new provider and context system in OpenSSL 3.0.0. EVP_default_properties_is_fips_enabled() is good enough for our needs in unit tests. It's an internal API, too. Signed-off-by: Christian Heimes <christian@python.org>
* bpo-40055: test_distutils leaves warnings filters unchanged (GH-20095)Victor Stinner2020-05-152-0/+9
| | | | | distutils.tests now saves/restores warnings filters to leave them unchanged. Importing tests imports docutils which imports pkg_resources which adds a warnings filter.
* Trivial typo fix in _tkinter.c (GH-19622)Andrew York2020-05-151-7/+7
| | | Change spelling of a #define in _tkinter.c from HAVE_LIBTOMMAMTH to HAVE_LIBTOMMATH, since this is used to keep track of tclTomMath.h, not tclTomMamth.h. No other file seems to refer to this variable.
* Fix typo in code comment in main_loop label. (GH-20068)Chris Jerdonek2020-05-151-1/+1
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* bpo-40612: Fix SyntaxError edge cases in traceback formatting (GH-20072)Guido van Rossum2020-05-155-39/+94
| | | | | | | | | | | | | This fixes both the traceback.py module and the C code for formatting syntax errors (in Python/pythonrun.c). They now both consistently do the following: - Suppress caret if it points left of text - Allow caret pointing just past end of line - If caret points past end of line, clip to *just* past end of line The syntax error formatting code in traceback.py was mostly rewritten; small, subtle changes were applied to the C code in pythonrun.c. There's still a difference when the text contains embedded newlines. Neither handles these very well, and I don't think the case occurs in practice. Automerge-Triggered-By: @gvanrossum
* Update code comment re: location of struct _is. (GH-20067)Chris Jerdonek2020-05-151-1/+1
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* bpo-40548: github actions: pass the changes check on no source changes ↵Filipe Laíns2020-05-151-1/+1
| | | | | (GH-20097) Signed-off-by: Filipe Laíns <lains@archlinux.org>
* bpo-40334: Correctly identify invalid target in assignment errors (GH-20076)Pablo Galindo2020-05-1510-44/+136
| | | Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
* bpo-38872: Document exec symbol for codeop.compile_command (GH-20047)Joannah Nanjekye2020-05-153-5/+7
| | | | | | | * Document exec symbol for codeop.compile_command * Remove extra statements Co-authored-by: nanjekyejoannah <joannah.nanjekye@ibm.com>
* bpo-40462: Fix typo in test_json (GH-20094)Victor Stinner2020-05-141-1/+1
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* bpo-40460: Fix typo in idlelib/zzdummy.py (GH-20093)Victor Stinner2020-05-141-1/+1
| | | Replace ztest with ztext.
* bpo-40548: GitHub Action workflow: skip jobs on doc only PRs (GH-19983)Filipe Laíns2020-05-141-0/+24
| | | Signed-off-by: Filipe Laíns <lains@archlinux.org>
* bpo-40602: _Py_hashtable_set() reports rehash failure (GH-20077)Victor Stinner2020-05-142-14/+26
| | | | If _Py_hashtable_set() fails to grow the hash table (rehash), it now fails rather than ignoring the error.
* bpo-40618: Disallow invalid targets in augassign and except clauses (GH-20083)Lysandros Nikolaou2020-05-145-46/+82
| | | | | | | | | This commit fixes the new parser to disallow invalid targets in the following scenarios: - Augmented assignments must only accept a single target (Name, Attribute or Subscript), but no tuples or lists. - `except` clauses should only accept a single `Name` as a target. Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-40619: Correctly handle error lines in programs without file mode (GH-20090)Pablo Galindo2020-05-142-25/+7
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* bpo-40602: Write unit tests for _Py_hashtable_t (GH-20091)Victor Stinner2020-05-144-120/+151
| | | | | | | Cleanup also hashtable.c. Rename _Py_hashtable_t members: * Rename entries to nentries * Rename num_buckets to nbuckets
* Revert "bpo-32604: [_xxsubinterpreters] Propagate exceptions. (GH-19768)" ↵Victor Stinner2020-05-142-1325/+123
| | | | | | | | | | | (GH-20089) * Revert "bpo-40613: Remove compiler warning from _xxsubinterpretersmodule (GH-20069)" This reverts commit fa0a66e62d087765dbc5c1b89d6149a23ecfb0a6. * Revert "bpo-32604: [_xxsubinterpreters] Propagate exceptions. (GH-19768)" This reverts commit a1d9e0accd33af1d8e90fc48b34c13d7b07dcf57.
* bpo-40549: posixmodule.c uses defining_class (GH-20075)Victor Stinner2020-05-142-137/+132
| | | | | | | | | Pass PEP 573 defining_class to os.DirEntry methods. The module state is now retrieve from defining_class rather than Py_TYPE(self), to support subclasses (even if DirEntry doesn't support subclasses yet). * Pass the module rather than defining_class to DirEntry_fetch_stat(). * Only get the module state once in _posix_clear(), _posix_traverse() and _posixmodule_exec().
* bpo-40495: compileall option to hardlink duplicate pyc files (GH-19901)Lumír 'Frenzy' Balhar2020-05-146-15/+285
| | | | | | | compileall is now able to use hardlinks to prevent duplicates in a case when .pyc files for different optimization levels have the same content. Co-authored-by: Miro Hrončok <miro@hroncok.cz> Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-40275: Import locale module lazily in gettext (GH-19905)Hai Shi2020-05-141-1/+7
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* bpo-40597: email: Use CTE if lines are longer than max_line_length ↵Arkadiusz Hiler2020-05-143-7/+23
| | | | | | | | | | | | | | | consistently (gh-20038) raw_data_manager (default for EmailPolicy, EmailMessage) does correct wrapping of 'text' parts as long as the message contains characters outside of 7bit US-ASCII set: base64 or qp Content-Transfer-Encoding is applied if the lines would be too long without it. It did not, however, do this for ascii-only text, which could result in lines that were longer than policy.max_line_length or even the rfc 998 maximum. This changeset fixes the heuristic so that if lines are longer than policy.max_line_length, it will always apply a content-transfer-encoding so that the lines are wrapped correctly.
* bpo-40521: Add PyInterpreterState.unicode (GH-20081)Victor Stinner2020-05-133-40/+48
| | | | | | | Move PyInterpreterState.fs_codec into a new PyInterpreterState.unicode structure. Give a name to the fs_codec structure and use this structure in unicodeobject.c.
* bpo-29587: Make gen.throw() chain exceptions with yield from (GH-19858)Chris Jerdonek2020-05-133-11/+57
| | | | | | | | | | | | The previous commits on bpo-29587 got exception chaining working with gen.throw() in the `yield` case. This patch also gets the `yield from` case working. As a consequence, implicit exception chaining now also works in the asyncio scenario of awaiting on a task when an exception is already active. Tests are included for both the asyncio case and the pure generator-only case.
* bpo-39465: Remove _PyUnicode_ClearStaticStrings() from C API (GH-20078)Victor Stinner2020-05-135-6/+8
| | | | Remove the _PyUnicode_ClearStaticStrings() function from the C API. Make the function fully private (declare it with "static").
* issue-25872: Fix KeyError using linecache from multiple threads (GH-18007)Michael Graczyk2020-05-131-3/+3
| | | | The crash that this fixes occurs when using traceback and other modules from multiple threads; del cache[filename] can raise a KeyError.
* bpo-38787: Fix Argument Clinic defining_class_converter (GH-20074)Victor Stinner2020-05-131-2/+7
| | | | | | | Don't hardcode defining_class parameter name to "cls": * Define CConverter.set_template_dict(): do nothing by default * CLanguage.render_function() now calls set_template_dict() on all converters.
* bpo-40334: Always show the caret on SyntaxErrors (GH-20050)Lysandros Nikolaou2020-05-135-192/+293
| | | | | | | | | | | | | | This commit fixes SyntaxError locations when the caret is not displayed, by doing the following: - `col_number` always gets set to the location of the offending node/expr. When no caret is to be displayed, this gets achieved by setting the object holding the error line to None. - Introduce a new function `_PyPegen_raise_error_known_location`, which can be called, when an arbitrary `lineno`/`col_offset` needs to be passed. This function then gets used in the grammar (through some new macros and inline functions) so that SyntaxError locations of the new parser match that of the old.
* bpo-34790: add version of removal of explicit passing of coros to ↵jack11422020-05-132-1/+2
| | | | `asyncio.wait`'s documentation (#20008)
* bpo-40613: Remove compiler warning from _xxsubinterpretersmodule (GH-20069)Dong-hee Na2020-05-131-0/+8
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* bpo-40331: Increase test coverage for the statistics module (GH-19608)Tzanetos Balitsaris2020-05-131-0/+60
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* bpo-40602: Optimize _Py_hashtable_get_ptr() (GH-20066)Victor Stinner2020-05-131-24/+23
| | | | | | | _Py_hashtable_get_entry_ptr() avoids comparing the entry hash: compare directly keys. Move _Py_hashtable_get_entry_ptr() just after _Py_hashtable_get_entry_generic().
* bpo-40609: _Py_hashtable_t values become void* (GH-20065)Victor Stinner2020-05-134-303/+140
| | | | | | | | | | | | | | | | | | | | | _Py_hashtable_t values become regular "void *" pointers. * Add _Py_hashtable_entry_t.data member * Remove _Py_hashtable_t.data_size member * Remove _Py_hashtable_t.get_func member. It is no longer needed to specialize _Py_hashtable_get() for a specific value size, since all entries now have the same size (void*). * Remove the following macros: * _Py_HASHTABLE_GET() * _Py_HASHTABLE_SET() * _Py_HASHTABLE_SET_NODATA() * _Py_HASHTABLE_POP() * Rename _Py_hashtable_pop() to _Py_hashtable_steal() * _Py_hashtable_foreach() callback now gets key and value rather than entry. * Remove _Py_hashtable_value_destroy_func type. value_destroy_func callback now only has a single parameter: data (void*).
* bpo-40609: _tracemalloc allocates traces (GH-20064)Victor Stinner2020-05-133-102/+117
| | | | | | | | | | | | | Rewrite _tracemalloc to store "trace_t*" rather than directly "trace_t" in traces hash tables. Traces are now allocated on the heap memory, outside the hash table. Add tracemalloc_copy_traces() and tracemalloc_copy_domains() helper functions. Remove _Py_hashtable_copy() function since there is no API to copy a key or a value. Remove also _Py_hashtable_delete() function which was commented.
* bpo-40609: Add destroy functions to _Py_hashtable (GH-20062)Victor Stinner2020-05-134-52/+73
| | | | | | Add key_destroy_func and value_destroy_func parameters to _Py_hashtable_new_full(). marshal.c and _tracemalloc.c use these destroy functions.
* bpo-40609: Remove _Py_hashtable_t.key_size (GH-20060)Victor Stinner2020-05-134-188/+120
| | | | | | | | | | Rewrite _Py_hashtable_t type to always store the key as a "const void *" pointer. Add an explicit "key" member to _Py_hashtable_entry_t. Remove _Py_hashtable_t.key_size member. hash and compare functions drop their hash table parameter, and their 'key' parameter type becomes "const void *".
* bpo-40609: Rewrite how _tracemalloc handles domains (GH-20059)Victor Stinner2020-05-122-160/+174
| | | | | | | | | | Rewrite how the _tracemalloc module stores traces of other domains. Rather than storing the domain inside the key, it now uses a new hash table with the domain as the key, and the data is a per-domain traces hash table. * Add tracemalloc_domain hash table. * Remove _Py_tracemalloc_config.use_domain. * Remove pointer_t and related functions.
* Fix Wikipedia link (GH-20031)Allen Guo2020-05-121-5/+5
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* bpo-40501: Replace ctypes code in uuid with native module (GH-19948)Steve Dower2020-05-129-186/+248
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