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* bpo-39829: Fix `__len__()` is called twice in list() constructor (GH-31816)Crowthebird2022-03-141-1/+1
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* bpo-46581: Propagate private vars via _GenericAlias.copy_with (GH-31061)Matt Bogosian2022-03-101-0/+1
| | | | | | | | | | GH-26091 added the _typevar_types and _paramspec_tvars instance variables to _GenericAlias. However, they were not propagated consistently. This commit addresses the most prominent deficiency identified in bpo-46581 (namely their absence from _GenericAlias.copy_with), but there could be others. Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-43292: Fix file leak in `ET.iterparse()` when not exhausted (GH-31696)Jacob Walls2022-03-071-0/+1
| | | Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-45735: Promise the long-time truth that `args=list` works (GH-30982)Charlie Zhao2022-02-261-0/+1
| | | | | | For threads, and for multiprocessing, it's always been the case that ``args=list`` works fine when passed to ``Process()`` or ``Thread()``, and such code is common in the wild. But, according to the docs, only a tuple can be used. This brings the docs into synch with reality. Doc changes by Charlie Zhao. Co-authored-by: Tim Peters <tim.peters@gmail.com>
* bpo-39327: Close file descriptors as soon as possible in shutil.rmtree ↵Lital Natan2022-02-201-0/+1
| | | | | | | | | (GH-31384) It fixes the "Text File Busy" OSError when using 'rmtree' on a windows-managed filesystem in via the VirtualBox shared folder (and possible other scenarios like a windows-managed network file system).
* bpo-46333: Honor `module` parameter in ForwardRef (GH-30536)aha792022-02-171-0/+1
| | | | | | | | | The `module` parameter carries semantic information about the forward ref. Forward refs are different if they refer to different module even if they have the same name. This affects the `__eq__`, `__repr__` and `__hash__` methods. Co-authored-by: Andreas Hangauer <andreas.hangauer@siemens.com> Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
* bpo-46066: Deprecate kwargs syntax for TypedDict definitions (GH-31126)97littleleaf112022-02-171-0/+1
| | | | | | Closes python/typing#981 https://bugs.python.org/issue46066
* bpo-46730: Add more info to @property AttributeError messages (GH-31311)Alex-Blade2022-02-161-0/+1
| | | On `obj.read_only_property = x`, raise `AttributeError: property 'read_only_property' of 'A' object has no setter`.
* bpo-46407: Optimizing some modulo operations (GH-30653)Crowthebird2022-01-281-0/+1
| | | | | | | Added new internal functions to compute mod without also computing the quotient. The loops can be leaner then, which leads to modestly but reliably faster execution in contexts that know they don't need the quotient. Code by Jeremiah Vivian (Pascual).
* bpo-46434: Handle missing docstrings in pdb help (GH-30705)Tom Sparrow2022-01-211-0/+1
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* bpo-45554: Document multiprocessing.Process.exitcode values (GH-30142)John Marshall2022-01-181-0/+1
| | | | | This addresses [bpo-45554]() by expanding the `exitcode` documentation to also describe what `exitcode` will be in cases of normal termination, `sys.exit()` called, and on uncaught exceptions. Automerge-Triggered-By: GH:pitrou
* bpo-46297: Fix interpreter crash on startup with multiple PythonPaths set in ↵Daniel2022-01-071-0/+1
| | | | registry (GH-30466)
* bpo-46055: Speed up binary shifting operators (GH-30044)Xinhang Xu2021-12-271-0/+1
| | | Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-45917: Add math.exp2() method - return 2 raised to the power of x (GH-29829)Gideon2021-11-291-0/+1
| | | Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-44904: Fix classmethod property bug in doctest module (GH-28838)Alex Waygood2021-10-281-0/+1
| | | | | | | | The doctest module raised an error if a docstring contained an example that attempted to access a classmethod property. (Stacking '@classmethod' on top of `@property` has been supported since Python 3.9; see https://docs.python.org/3/howto/descriptor.html#class-methods.) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-45012: Release GIL around stat in os.scandir (GH-28085)Stanisław Skonieczny2021-09-071-0/+1
| | | | | Releasing GIL allows other threads to continue its work when os.scandir is fetching DirEntry.stat info from file system.
* bpo-45034: Fix how upper limit is formatted for `struct.pack("H", ...)` ↵Nikita Sobolev2021-09-071-0/+1
| | | | | | (GH-28178) Co-authored-by: Mark Dickinson <dickinsm@gmail.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* Update ACKS (GH-27988)Soumendra Ganguly2021-08-271-0/+1
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* bpo-16580: [doc] Add examples to int.to_bytes and int.from_bytes (GH-27760)Gautam Chaudhuri2021-08-151-0/+1
| | | | | | | | | | * added code equivs. for to_bytes and from_bytes Based on woparry's patch[1] from the relevant issue thread[2]. [1]: https://bugs.python.org/file30372/issue16580.patch [2]: https://bugs.python.org/issue16580 Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-26228: Fix pty EOF handling (GH-12049)Zephyr Shannon2021-08-111-0/+1
| | | | | | | | | | On non-Linux POSIX platforms, like FreeBSD or macOS, the FD used to read a forked PTY may signal its exit not by raising an error but by sending empty data to the read syscall. This case wasn't handled, leading to hanging `pty.spawn` calls. Co-authored-by: Reilly Tucker Siemens <reilly@tuckersiemens.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
* closes bpo-39091: Fix segfault when Exception constructor returns ↵Noah2021-08-031-0/+1
| | | | | non-exception for gen.throw. (#17658) Co-authored-by: Benjamin Peterson <benjamin@python.org>
* bpo-44792: Improve syntax errors for if expressions (GH-27506)Miguel Brito2021-08-021-0/+1
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* bpo-44666: Use default encoding as fallback for compile_file (GH-27236)Stefan Hoelzl2021-07-301-0/+1
| | | | | | | When sys.stdout.encoding is None compile_file will fall back to sys.getdefaultencoding to encode/decode error messages. Co-authored-by: Stefan Hoelzl <stefan.hoelzl@posteo.de> Co-authored-by: Mickaël Schoentgen <contact@tiger-222.fr>
* [Enum] improve test, add andrei kulakov to ACKS (GH-26726)Ethan Furman2021-06-151-0/+1
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* bpo-44357:Add `math.cbrt()` function: Cube Root (GH-26622)Ajith Ramachandran2021-06-101-0/+1
| | | | | | * Add math.cbrt() function: Cube Root Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* Add bpo-42914 to What's New (GH-25124)Wm. Keith van der Meulen2021-06-031-0/+1
| | | | | BPO-42914 was not added to the What's New in #24864. This includes it in the "Improved Modules" section. Automerge-Triggered-By: GH:gpshead
* bpo-43558: Add note about base class initialization to dataclasses doc ↵dhoekstra20002021-05-101-0/+1
| | | | (GH-25967)
* bpo-44059: Register the SerenityOS Browser in the webbrowser module (GH-25947)Linus Groh2021-05-061-0/+1
| | | Automerge-Triggered-By: GH:gpshead
* bpo-32822: Add finally with return/break/continue to the tutorial (#25600)Roberto Hueso2021-05-041-0/+1
| | | | | This documents in the tutorial docs the behavior of a finally clause in case it should re-raise an exception but contains a return/break/continue statement.
* bpo-41100: Update Misc/ACKS (GH-25808)Ned Deily2021-05-021-0/+4
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* bpo-42800: add audit hooks for f_code and tb_frame (GH-24182)Ryan Hileman2021-04-291-0/+1
| | | | | | | | | | Accessing the following attributes will now fire PEP 578 style audit hooks as ("object.__getattr__", obj, name): * PyTracebackObject: tb_frame * PyFrameObject: f_code * PyGenObject: gi_code, gi_frame * PyCoroObject: cr_code, cr_frame * PyAsyncGenObject: ag_code, ag_frame Add an AUDIT_READ attribute flag aliased to READ_RESTRICTED. Update obsolete flag documentation.
* bpo-43938: improve dataclasses.FrozenInstanceError documentation (GH-25603)Llandy Riveron Del Risco2021-04-261-0/+1
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* bpo-38490: statistics: Add covariance, Pearson's correlation, and simple ↵Tymoteusz Wołodźko2021-04-251-0/+1
| | | | | linear regression (#16813) Co-authored-by: Tymoteusz Wołodźko <twolodzko+gitkraken@gmail.com
* bpo-43917: Fix pure python equivalent for classmethod (GH-25544)Raymond Hettinger2021-04-231-1/+2
| | | Reported by Yahor Harunovich.
* bpo-40849: Expose X509_V_FLAG_PARTIAL_CHAIN ssl flag (GH-20463)l0x2021-04-191-0/+1
| | | This short PR exposes an openssl flag that wasn't exposed. I've also updated to doc to reflect the change. It's heavily inspired by 990fcaac3c428569697f62a80fd95ab4d4b93151.
* bpo-36076: Add SNI support to ssl.get_server_certificate. (GH-16820)juhovh2021-04-181-0/+1
| | | | | | | | | | | | | | Many servers in the cloud environment require SNI to be used during the SSL/TLS handshake, therefore it is not possible to fetch their certificates using the ssl.get_server_certificate interface. This change adds an additional optional hostname argument that can be used to set the SNI. Note that it is intentionally a separate argument instead of using the host part of the addr tuple, because one might want to explicitly fetch the default certificate or fetch a certificate from a specific IP address with the specified SNI hostname. A separate argument also works better for backwards compatibility. Automerge-Triggered-By: GH:tiran
* Update ACKS (GH-25423)Ethan Furman2021-04-151-0/+2
| | | | * Add Arseny Boykov * Add Matthias Urlichs
* bpo-43712 : fileinput: Add encoding parameter (GH-25272)Inada Naoki2021-04-141-0/+1
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* bpo-43399: Fix ElementTree.extend not working on iterators (GH-24751)Alex Prengère2021-03-301-0/+1
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* bpo-43420: Simple optimizations for Fraction's arithmetics (GH-24779)Sergey B Kirpichev2021-03-221-0/+1
| | | | | | | bpo-43420: Implement standard transformations in + - * / that can often reduce the size of intermediate integers needed. For rationals with large components, this can yield dramatic speed improvements, but for small rationals can run 10-20% slower, due to increased fixed overheads in the longer-winded code. If those slowdowns turn out to be a problem, see the PR discussion for low-level implementation tricks that could cut other fixed overheads. Co-authored-by: Tim Peters <tim.peters@gmail.com> Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-42603: Add whatsnew and ACKS entries. (GH-24675)Ned Deily2021-03-011-0/+1
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* bpo-42819, readline: Disable bracketed paste (GH-24108)Dustin Rodrigues2021-02-151-0/+1
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* bpo-38250: [Enum] single-bit flags are canonical (GH-24215)Ethan Furman2021-01-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Flag members are now divided by one-bit verses multi-bit, with multi-bit being treated as aliases. Iterating over a flag only returns the contained single-bit flags. Iterating, repr(), and str() show members in definition order. When constructing combined-member flags, any extra integer values are either discarded (CONFORM), turned into ints (EJECT) or treated as errors (STRICT). Flag classes can specify which of those three behaviors is desired: >>> class Test(Flag, boundary=CONFORM): ... ONE = 1 ... TWO = 2 ... >>> Test(5) <Test.ONE: 1> Besides the three above behaviors, there is also KEEP, which should not be used unless necessary -- for example, _convert_ specifies KEEP as there are flag sets in the stdlib that are incomplete and/or inconsistent (e.g. ssl.Options). KEEP will, as the name suggests, keep all bits; however, iterating over a flag with extra bits will only return the canonical flags contained, not the extra bits. Iteration is now in member definition order. If member definition order matches increasing value order, then a more efficient method of flag decomposition is used; otherwise, sort() is called on the results of that method to get definition order. ``re`` module: repr() has been modified to support as closely as possible its previous output; the big difference is that inverted flags cannot be output as before because the inversion operation now always returns the comparable positive result; i.e. re.A|re.I|re.M|re.S is ~(re.L|re.U|re.S|re.T|re.DEBUG) in both of the above terms, the ``value`` is 282. re's tests have been updated to reflect the modifications to repr().
* bpo-42870: Document change in argparse help output. (GH-24190)Tomáš Hrnčiar2021-01-121-0/+1
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* bpo-39068: Fix race condition in base64 (GH-17627)Brandon Stansbury2020-12-311-0/+1
| | | | There was a race condition in base64 in lazy initialization of multiple globals.
* bpo-42669: Document that `except` rejects nested tuples (GH-23822)Colin Watson2020-12-201-0/+1
| | | | | | | | | | | | | In Python 2, it was possible to use `except` with a nested tuple, and occasionally natural. For example, `zope.formlib.interfaces.InputErrors` is a tuple of several exception classes, and one might reasonably think to do something like this: try: self.getInputValue() return True except (InputErrors, SomethingElse): return False As of Python 3.0, this raises `TypeError: catching classes that do not inherit from BaseException is not allowed` instead: one must instead either break it up into multiple `except` clauses or flatten the tuple. However, the reference documentation was never updated to match this new restriction. Make it clear that the definition is no longer recursive. Automerge-Triggered-By: GH:ericvsmith
* Fixed typo in itertools documentation (GH-23816)Casper Smet2020-12-191-0/+1
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* bpo-42615: Delete redundant jump instructions that only bypass empty blocks ↵Om G2020-12-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | (GH-23733) * Delete jump instructions that bypass empty blocks * Add news entry * Explicitly check for unconditional jump opcodes Using the is_jump function results in the inclusion of instructions like returns for which this optimization is not really valid. So, instead explicitly check that the instruction is an unconditional jump. * Handle conditional jumps, delete jumps gracefully * Ensure b_nofallthrough and b_reachable are valid * Add test for redundant jumps * Regenerate importlib.h and edit Misc/ACKS * Fix bad whitespace
* Added support for negative indexes to PurePath.parents (GH-21799)Yaroslav Pankovych2020-11-231-0/+1
| | | | | | | | | | This commit also fixes up some of the overlapping documentation changed in bpo-35498, which added support for indexing with slices. Fixes bpo-21041. https://bugs.python.org/issue21041 Co-authored-by: Paul Ganssle <p.ganssle@gmail.com> Co-authored-by: Rémi Lapeyre <remi.lapeyre@henki.fr>
* bpo-15450: Allow subclassing of dircmp (GH-23424) (#23424)Nick Crews2020-11-231-0/+1
| | | Co-authored-by: Chris Jerdonek <chris.jerdonek@gmail.com>
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