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* bpo-36144: Implement defaultdict union (GH-18729)Brandt Bucher2020-03-061-0/+38
| | | For PEP 585 (this isn't in the PEP but is an obvious follow-up).
* bpo-39855: Fix test_subprocess if nobody user doesn't exist (GH-18781)Victor Stinner2020-03-051-2/+7
| | | | | test_subprocess.test_user() now skips the test on an user name if the user name doesn't exist. For example, skip the test if the user "nobody" doesn't exist on Linux.
* bpo-13487: Use sys.modules.copy() in inspect.getmodule() for thread safety. ↵Gregory P. Smith2020-03-051-1/+1
| | | | | | | | (GH-18786) `list(sys.modules.items())` was apparently not immune to "dictionary changed size during iteration" errors. Tested internally using an integration test that has run into this a couple of times in the past two years. With this patch applied, the test is no longer flaky.
* bpo-39674: Revert "bpo-37330: open() no longer accept 'U' in file mode ↵Victor Stinner2020-03-046-32/+52
| | | | | | | (GH-16959)" (GH-18767) This reverts commit e471e72977c83664f13d041c78549140c86c92de. The mode will be removed from Python 3.10.
* bpo-39639: Remove the AST "Suite" node and associated code (GH-18513)Batuhan Taşkaya2020-03-041-1/+1
| | | | | | | | The AST "Suite" node is no longer used and it can be removed from the ASDL definition and related structures (compiler, visitors, ...). Co-Authored-By: Victor Stinner <vstinner@python.org> Co-authored-by: Brett Cannon <54418+brettcannon@users.noreply.github.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-39763: distutils.spawn now uses subprocess (GH-18743)Victor Stinner2020-03-042-117/+22
| | | | | | | | Reimplement distutils.spawn.spawn() function with the subprocess module. setup.py now uses a basic implementation of the subprocess module if the subprocess module is not available: before required C extension modules are built.
* bpo-39826: add getConnection() hook to logging HTTPHandler (GH-18745)l0rb2020-03-041-5/+16
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* bpo-39702: Relax grammar restrictions on decorators (PEP 614) (GH-18570)Brandt Bucher2020-03-033-15/+89
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* bpo-35712: Make using NotImplemented in a boolean context issue a ↵MojoVampire2020-03-035-7/+25
| | | | deprecation warning (GH-13195)
* bpo-12915: Skip test_pkgutil.test_name_resolution() non-encodable filenames ↵Michael Felt2020-03-031-1/+5
| | | | | | (GH-18720) When filesystem encoding cannot encode the Unicode string used for a filename continue testing with the next example.
* bpo-38091: Import deadlock detection causes deadlock (GH-17518)Armin Rigo2020-03-032-0/+17
| | | Automerge-Triggered-By: @brettcannon
* bpo-38597: Never statically link extension initialization code on Windows ↵Steve Dower2020-03-032-104/+7
| | | | (GH-18724)
* bpo-39778: Don't traverse weak-reference lists OrderedDict's tp_traverse and ↵Pablo Galindo2020-03-021-0/+20
| | | | | | tp_clear (GH-18749) Objects do not own weak references to them directly through the __weakref__ list so these do not need to be traversed by the GC.
* bpo-38870: Add docstring support to ast.unparse (GH-17760)Batuhan Taşkaya2020-03-022-80/+171
| | | | | | Allow ast.unparse to detect docstrings in functions, modules and classes and produce nicely formatted unparsed output for said docstrings. Co-Authored-By: Pablo Galindo <Pablogsal@gmail.com>
* bpo-39764: Make Task.get_stack accept ag_frame (#18669)Lidi Zheng2020-03-022-3/+25
| | | | Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* bpo-39775: inspect: Change Signature.parameters back to OrderedDict. (GH-18684)Inada Naoki2020-03-021-10/+12
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* bpo-38971: Open file in codecs.open() closes if exception raised. (GH-17666)Chris A2020-03-022-5/+19
| | | | | | Open issue in the BPO indicated a desire to make the implementation of codecs.open() at parity with io.open(), which implements a try/except to assure file stream gets closed before an exception is raised.
* bpo-39495: Remove default value from C impl of TreeBuilder.start (GH-18275)Shantanu2020-03-021-0/+4
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* bpo-39815: add cached_property to all (GH-18726)Hakan Çelik2020-03-011-1/+2
| | | Automerge-Triggered-By: @pablogsal
* bpo-39678: refactor queue manager thread (GH-18551)Thomas Moreau2020-03-012-215/+237
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* bpo-38870: Implement a precedence algorithm in ast.unparse (GH-17377)Batuhan Taşkaya2020-03-013-16/+172
| | | | Implement a simple precedence algorithm for ast.unparse in order to avoid redundant parenthesis for nested structures in the final output.
* bpo-39520: Fix un-parsing of ext slices with no dimensions (GH-18304)Batuhan Taşkaya2020-03-011-0/+5
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* bpo-38641: Add lib2to3 support for starred expressions in return/yield ↵Vlad Emelianov2020-03-012-3/+15
| | | | | | statements (GH-16994)
* bpo-39548: Fix handling of 'WWW-Authenticate' header for Digest Auth (GH-18338)Stephen Balousek2020-02-291-3/+3
| | | | | | | | | | | | | | | | | | | | | | * bpo-39548: Fix handling of 'WWW-Authenticate' header for Digest authentication - The 'qop' value in the 'WWW-Authenticate' header is optional. The presence of 'qop' in the header should be checked before its value is parsed with 'split'. Signed-off-by: Stephen Balousek <stephen@balousek.net> * bpo-39548: Fix handling of 'WWW-Authenticate' header for Digest authentication - Add NEWS item Signed-off-by: Stephen Balousek <stephen@balousek.net> * Update Misc/NEWS.d/next/Library/2020-02-06-05-33-52.bpo-39548.DF4FFe.rst Co-Authored-By: Brandt Bucher <brandtbucher@gmail.com> Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
* bpo-39794: Add --without-decimal-contextvar (#18702)Stefan Krah2020-02-292-2/+7
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* bpo-39667: Sync zipp 3.0 (GH-18540)Jason R. Coombs2020-02-292-33/+38
| | | | | | | | | | | | | | * bpo-39667: Improve pathlib.Path compatibility on zipfile.Path and correct performance degradation as found in zipp 3.0 * 📜🤖 Added by blurb_it. * Update docs for new zipfile.Path.open * Rely on dict, faster than OrderedDict. * Syntax edits on docs Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* bpo-37534: Allow adding Standalone Document Declaration when generating XML ↵Henry Harutyunyan2020-02-292-10/+32
| | | | documents (GH-14912)
* bpo-39769: Fix compileall ddir for subpkgs. (GH-18676)Gregory P. Smith2020-02-293-2/+61
| | | | | | | | | | Fix compileall.compile_dir() ddir= behavior on sub-packages. Fixes compileall.compile_dir's ddir parameter and compileall command line flag `-d` to no longer write the wrong pathname to the generated pyc file for submodules beneath the root of the directory tree being compiled. This fixes a regression introduced with Python 3.5. Also marks the _new_ in 3.9 from PR #16012 parameters to compile_dir as keyword only (as that is the only way they will be used) and fixes an omission of them in one place from the docs.
* bpo-39781: Do not jump when select in IDLE codecontext (GH-18683)Terry Jan Reedy2020-02-283-19/+35
| | | | Previously, the button-up part of selecting with a mouse was treated as a click that meant 'jump' to this line, which modified the context and undid the selection
* bpo-12915: Improve Unicode support for package names and attributes. (GH-18517)Vinay Sajip2020-02-282-6/+39
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* bpo-39609: set the thread_name_prefix for the default asyncio executor ↵Markus Mohrhard2020-02-271-1/+3
| | | | | (GH-18458) Just a small debugging improvement to identify the asyncio executor threads.
* Suppress the hang (#18457)Andrew Svetlov2020-02-261-2/+9
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* bpo-34788: Add support for scoped IPv6 addresses (GH-13772)opavlyuk2020-02-262-25/+497
| | | Automerge-Triggered-By: @asvetlov
* Python 3.9.0a4v3.9.0a4Łukasz Langa2020-02-251-6/+15
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* bpo-36144: Dictionary Union (PEP 584) (#12088)Brandt Bucher2020-02-252-0/+52
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* bpo-30566: Fix IndexError when using punycode codec (GH-18632)Berker Peksag2020-02-252-1/+13
| | | | Trying to decode an invalid string with the punycode codec shoud raise UnicodeError.
* Give proper credit for figuring out and writing PEP-3118 tests. (#18644)Stefan Krah2020-02-241-0/+2
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* bpo-39649: Remove obsolete check for `__args__` in ↵Daniel Hahler2020-02-241-8/+1
| | | | | | | | bdb.Bdb.format_stack_entry (GH-18531) Appears to be obsolete since 75bb54c3d8. Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
* bpo-39681: Fix C pickle regression with minimal file-like objects (#18592)Antoine Pitrou2020-02-231-4/+21
| | | | Fix a regression where the C pickle module wouldn't allow unpickling from a file-like object that doesn't expose a readinto() method.
* bpo-39648: Expand math.gcd() and math.lcm() to handle multiple arguments. ↵Serhiy Storchaka2020-02-231-25/+33
| | | | | | | | | | | | | | | | (GH-18604) * bpo-39648: Expand math.gcd() and math.lcm() to handle multiple arguments. * Simplify fast path. * Difine lcm() without arguments returning 1. * Apply suggestions from code review Co-Authored-By: Mark Dickinson <dickinsm@gmail.com> Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-39382: Avoid dangling object use in abstract_issubclass() (GH-18530)Yonatan Goldschmidt2020-02-221-0/+21
| | | | | Hold reference of __bases__ tuple until tuple item is done with, because by dropping the reference the item may be destroyed.
* bpo-35950: Raise UnsupportedOperation in BufferedReader.truncate() (GH-18586)Berker Peksag2020-02-212-0/+14
| | | | | | | | | | | | | | | The truncate() method of io.BufferedReader() should raise UnsupportedOperation when it is called on a read-only io.BufferedReader() instance. https://bugs.python.org/issue35950 Automerge-Triggered-By: @methane
* bpo-35727: Use exit code 0 on sys.exit() in multiprocessing.Process. (GH-11538)Christopher Hunt2020-02-212-11/+20
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* bpo-9495: avoid confusing chained exception in argparse test (GH-17120)alclarks2020-02-211-1/+2
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* bpo-39576: Prevent memory error for overly optimistic precisions (GH-18581)Stefan Krah2020-02-211-0/+35
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* bpo-39479:Add math.lcm() function: Least Common Multiple (#18547)ananthan-1232020-02-191-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Update math.rst * Update math.rst * updated whats new * Update test_math.py * Update mathmodule.c * Update mathmodule.c.h * Update ACKS * 📜🤖 Added by blurb_it. * Update 3.9.rst * Update 2020-02-18-12-37-16.bpo-39479.j3UcCq.rst * Update math.rst * Update 2020-02-18-12-37-16.bpo-39479.j3UcCq.rst * Update test_math.py * Update ACKS * Update mathmodule.c.h * Update mathmodule.c * Update mathmodule.c.h * Update mathmodule.c.h Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* Revert "bpo-38691 Added a switch to ignore PYTHONCASEOK when -E or -I flags ↵Victor Stinner2020-02-191-1/+1
| | | | | passed (#18314)" (GH-18553) This reverts commit d83b6600b25487e4ebffd7949d0f478de9538875.
* bpo-39572: Document ’total’ flag of TypedDict (GH-18554)ananthan-1232020-02-191-1/+14
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* bpo-39674: Revert "bpo-25988: Do not expose abstract collection classes in ↵Victor Stinner2020-02-181-0/+15
| | | | | | | | the collections module. (GH-10596)" (GH-18545) This reverts commit ef092fe9905f61ca27889092ca1248a11aa74498. Update collections __getattr__() and documentation to defer aliases removal to Python 3.10.
* bpo-39546: argparse: Honor allow_abbrev=False for specified prefix_chars ↵Kyle Meyer2020-02-182-28/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | (GH-18337) When `allow_abbrev` was first added, disabling the abbreviation of long options broke the grouping of short flags ([bpo-26967](https://bugs.python.org/issue26967)). As a fix, b1e4d1b603 (contained in v3.8) ignores `allow_abbrev=False` for a given argument string if the string does _not_ start with "--" (i.e. it doesn't look like a long option). This fix, however, doesn't take into account that long options can start with alternative characters specified via `prefix_chars`, introducing a regression: `allow_abbrev=False` has no effect on long options that start with an alternative prefix character. The most minimal fix would be to replace the "starts with --" check with a "starts with two prefix_chars characters". But `_get_option_tuples` already distinguishes between long and short options, so let's instead piggyback off of that check by moving the `allow_abbrev` condition into `_get_option_tuples`. https://bugs.python.org/issue39546
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