Commit Graph

160 Commits

Author SHA1 Message Date
Carl Meyer 056dfc71dc
gh-87634: remove locking from functools.cached_property (GH-101890)
Remove the undocumented locking capabilities of functools.cached_property.
2023-02-22 17:49:22 -08:00
Serhiy Storchaka f9433fff47
gh-89828: Do not relay the __class__ attribute in GenericAlias (#93754)
list[int].__class__ returned type, and isinstance(list[int], type)
returned True. It caused numerous problems in code that checks
isinstance(x, type).
2022-06-18 11:34:57 +03:00
Raymond Hettinger 7ad52d174a
This localization technique is no longer cost effective. (GH-30818) 2022-01-22 20:52:55 -06:00
Serhiy Storchaka 078abb676c
bpo-46032: Check types in singledispatch's register() at declaration time (GH-30050)
The registry() method of functools.singledispatch() functions checks now
the first argument or the first parameter annotation and raises a TypeError if it is
not supported. Previously unsupported "types" were ignored (e.g. typing.List[int])
or caused an error at calling time (e.g. list[int]).
2021-12-25 14:16:14 +02:00
Yurii Karabas 3cb357a2e6
bpo-46014: Add ability to use typing.Union with singledispatch (GH-30017) 2021-12-11 00:27:55 +01:00
Raymond Hettinger 1f7d64608b
bpo-44605: Teach @total_ordering() to work with metaclasses (GH-27633) 2021-08-06 14:33:30 -05:00
Noah Kantrowitz be42c06bb0
Update URLs in comments and metadata to use HTTPS (GH-27458) 2021-07-30 15:54:46 +02:00
Zackery Spytz cd3c2bdd5d
bpo-31082: Use "iterable" in the docstring for functools.reduce() (GH-20796) 2020-06-28 15:40:54 +09:00
Pablo Galindo 2f172d8f15
bpo-17005: Move topological sort functionality to its own module (GH-20558)
The topological sort functionality that was introduced initially in the
functools module has been moved to a new graphlib module to
better accommodate the new tools and keep the original scope of the
functools module.
2020-06-01 00:41:14 +01:00
Raymond Hettinger 21cdb711e3
bpo-40571: Make lru_cache(maxsize=None) more discoverable (GH-20019) 2020-05-11 17:00:53 -07:00
Ethan Smith cecf049673
bpo-39481: Make functools.cached_property, partial, partialmethod generic (#19427) 2020-04-13 21:53:04 -07:00
Nikita Sobolev bd87a7fda0
Updates functools.py with consistent quotes (GH-18825)
I have noticed that `'` quotes are used everywhere except this particular case,
which was introduced in https://github.com/python/cpython/pull/18726

So, this is a trivial fix to enforce better consistency.
2020-03-10 17:32:15 -07:00
MojoVampire 469325c30e
bpo-35712: Make using NotImplemented in a boolean context issue a deprecation warning (GH-13195) 2020-03-03 20:50:17 +02:00
Hakan Çelik 217dce9ee6
bpo-39815: add cached_property to all (GH-18726)
Automerge-Triggered-By: @pablogsal
2020-03-01 13:01:34 -08:00
Pablo Galindo 99e6c260d6
bpo-17005: Add a class to perform topological sorting to the standard library (GH-11583)
Co-Authored-By: Tim Peters <tim.peters@gmail.com>
2020-01-23 15:29:52 +00:00
Manjusaka 051ff526b5 bpo-38565: add new cache_parameters method for lru_cache (GH-16916) 2019-11-11 23:30:18 -08:00
amist 336b3064d8 Doc: Fix Wikipedia link for functools.lru_cache (GH-16183) 2019-09-16 20:36:14 +02:00
Raymond Hettinger 0dac68f1e5
bpo-36743: __get__ is sometimes called without the owner argument (#12992) 2019-08-29 01:27:42 -07:00
Serhiy Storchaka 142566c028
[3.9] bpo-37116: Use PEP 570 syntax for positional-only parameters. (GH-12620)
Turn deprecation warnings added in 3.8 into TypeError.
2019-06-05 18:22:31 +03:00
Serhiy Storchaka 2085bd0877
bpo-37116: Use PEP 570 syntax for positional-only parameters. (GH-13700) 2019-06-01 11:00:15 +03:00
Raymond Hettinger b821868e6d
bpo-36772 Allow lru_cache to be used as decorator without making a function call (GH-13048) 2019-05-26 11:27:35 -07:00
Lysandros Nikolaou d673810b9d bpo-35252: Remove FIXME from test_functools (GH-10551) 2019-05-19 15:11:20 -07:00
Serhiy Storchaka d53cf99dca
bpo-36542: Allow to overwrite the signature for Python functions. (GH-12705) 2019-05-06 22:40:27 +03:00
Serhiy Storchaka 42a139ed88
bpo-36492: Deprecate passing some arguments as keyword arguments. (GH-12637)
Deprecated passing the following arguments as keyword arguments:

- "func" in functools.partialmethod(), weakref.finalize(),
  profile.Profile.runcall(), cProfile.Profile.runcall(),
  bdb.Bdb.runcall(), trace.Trace.runfunc() and
  curses.wrapper().
- "function" in unittest.addModuleCleanup() and
  unittest.TestCase.addCleanup().
- "fn" in the submit() method of concurrent.futures.ThreadPoolExecutor
  and concurrent.futures.ProcessPoolExecutor.
- "callback" in contextlib.ExitStack.callback(),
  contextlib.AsyncExitStack.callback() and
  contextlib.AsyncExitStack.push_async_callback().
- "c" and "typeid" in the create() method of multiprocessing.managers.Server
  and multiprocessing.managers.SharedMemoryServer.
- "obj" in weakref.finalize().

Also allowed to pass arbitrary keyword arguments (even "self" and "func")
if the above arguments are passed as positional argument.
2019-04-01 09:16:35 +03:00
Serhiy Storchaka da0847048a
bpo-36431: Use PEP 448 dict unpacking for merging two dicts. (GH-12553) 2019-03-27 08:02:28 +02:00
Raymond Hettinger ffdf1c30ab
Consistently move the misses update to just before the user function call (GH-11715) 2019-01-31 15:03:38 -08:00
Raymond Hettinger d8080c0119
bpo-35780: Fix errors in lru_cache() C code (GH-11623) 2019-01-26 03:02:00 -05:00
Pablo Galindo 7cd2543416
bpo-34890: Make iscoroutinefunction, isgeneratorfunction and isasyncgenfunction work with functools.partial (GH-9903)
inspect.isfunction() processes both inspect.isfunction(func) and
inspect.isfunction(partial(func, arg)) correctly but some other functions in the
inspect module (iscoroutinefunction, isgeneratorfunction and isasyncgenfunction)
lack this functionality. This commits adds a new check in the mentioned functions
in the inspect module so they can work correctly with arbitrarily nested partial
functions.
2018-10-26 12:19:14 +01:00
madman-bob e25d5fc18e bpo-32321: Add pure Python fallback for functools.reduce (GH-8548) 2018-10-25 16:02:10 +02:00
Carl Meyer d658deac60 bpo-21145: Add cached_property decorator in functools (#6982)
Robust caching of calculated properties is
harder than it looks at first glance, so add
a solid, well-tested implementation to the
standard library.
2018-08-28 17:11:56 +10:00
Dong-hee Na 445f1b35ce bpo-33967: Fix singledispatch raised IndexError when no args (GH-8184) 2018-07-10 16:26:36 +09:00
Ethan Smith c651275afe bpo-32380: Create functools.singledispatchmethod (#6306) 2018-05-26 13:38:33 -07:00
Łukasz Langa e56975351b
bpo-32227: functools.singledispatch supports registering via type annotations (#4733) 2017-12-11 13:56:31 -08:00
INADA Naoki 9811e80fd0 bpo-31581: Reduce the number of imports for functools (GH-3757) 2017-09-30 16:13:02 +09:00
Antoine Pitrou a6a4dc816d bpo-31370: Remove support for threads-less builds (#3385)
* Remove Setup.config
* Always define WITH_THREAD for compatibility.
2017-09-07 18:56:24 +02:00
Raymond Hettinger 15ce0bee97 Conceptually, roots is a set. Also searching it as a set is a tiny bit faster (#3338) 2017-09-05 09:40:44 -07:00
Raymond Hettinger 550370957c Add comment to explain the implications of not sorting keywords (#3331)
In Python 3.6, sorted() was removed from _make_key() for the lru_cache and instead rely on guaranteed keyword argument order preservation.  This makes keyword argument handling faster but it also causes multiple callers with a different keyword argument order to be cached as separate items.  Depending on your point of view, this is either a performance regression (increased number of cache misses) or a performance enhancement (faster computation of keys).
2017-09-04 17:47:53 -07:00
Raymond Hettinger ac7c5acf9b merge 2017-01-08 17:29:21 -08:00
Raymond Hettinger 4ee39141e8 Issue #29203: functools.lru_cache() now respects PEP 468 2017-01-08 17:28:20 -08:00
Raymond Hettinger b2d4b3d415 Issue #28991: Address comment that the __len__ call looked unattractive 2016-12-16 14:59:37 -08:00
Raymond Hettinger c28dbd0452 merge 2016-12-16 13:59:32 -08:00
Raymond Hettinger af56e0e70f Issue #28991: Fix obscure reentrancy bug in functools.lru_cache(). 2016-12-16 13:57:40 -08:00
Nick Coghlan 457fc9a69e Issue #27137: align Python & C implementations of functools.partial
The pure Python fallback implementation of functools.partial
now matches the behaviour of its accelerated C counterpart for
subclassing, pickling and text representation purposes.

Patch by Emanuel Barry and Serhiy Storchaka.
2016-09-10 20:00:02 +10:00
Serhiy Storchaka ce2295def3 Removed redundant call of update_wrapper(). 2015-10-24 09:51:53 +03:00
Yury Selivanov 77a8cd65be Issue #23572: Fixed functools.singledispatch on classes with falsy metaclasses.
Patch by Ethan Furman.
2015-08-18 14:20:00 -04:00
Serhiy Storchaka 46c5611948 Backed out changeset: b0a0b9b59012 2015-05-24 21:53:49 +03:00
Larry Hastings 8252cc9832 Backed out changeset 57776eee74f2 2015-05-23 14:56:23 -07:00
Serhiy Storchaka 1c858c352b Issue #14373: Added C implementation of functools.lru_cache(). Based on
patches by Matt Joiner and Alexey Kachayev.
2015-05-23 22:42:49 +03:00
Serhiy Storchaka ba9ac5b5c4 Issue #16261: Converted some bare except statements to except statements
with specified exception type.  Original patch by Ramchandra Apte.
2015-05-20 10:33:40 +03:00
Raymond Hettinger ffcd8490d0 Reduce the overhead in functools.total_ordering by localizing NotImplemented.
(Sugguested by Serhiy Storchaka)
2015-05-12 21:26:37 -07:00