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119 commits

Author SHA1 Message Date
Arseny Boykov
19297bc9ee Fix incorrect variable reference 2024-09-28 00:42:42 +02:00
Arseny Boykov
3654f51b82 Add explanation for _depth use and tests 2024-09-28 00:42:26 +02:00
Arseny Boykov
3b65acf8d6 Improve zero argument support for super() in dataclasses 2024-09-27 20:10:37 +02:00
sobolevn
9c7657f099
gh-113878: Add doc parameter to dataclasses.field (gh-114051) 
If using `slots=True`, the `doc` parameter ends up in the `__slots__` dict. The `doc` parameter is also in the corresponding `Field` object.
 2024-09-27 12:20:49 -04:00
Eric V. Smith
5c6e3b7150
gh-90562: Support zero argument super with dataclasses when slots=True (gh-124455) 
Co-authored-by: @wookie184
Co-authored-by: Carl Meyer <carl@oddbird.net>
 2024-09-24 21:26:26 -04:00
Jelle Zijlstra
950fab46ad
dataclasses: Avoid using private class (#124465) 
typing.get_origin() does what we need here, without reaching into
typing internals. This shouldn't change any behavior (so I am going
to skip news), but it sets a good example for other users introspecting
typing objects.
 2024-09-24 14:02:18 -07:00
sobolevn
ac918ccad7
gh-123935: Fix typo in _get_slots in dataclasses.py (#123941) 2024-09-12 10:29:06 +03:00
Xie Yanbo
253c6a0b2f
Fix typos in comments and test code (#122846) 2024-08-11 21:16:41 -07:00
Jelle Zijlstra
7b7b90d1ce
gh-119180: Add annotationlib module to support PEP 649 (#119891) 
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
 2024-07-23 21:16:50 +00:00
Victor Stinner
4c6d4f5cb3
gh-120417: Remove unused imports in the stdlib (#120420) 2024-06-12 20:56:42 +02:00
Nikita Sobolev
fa9b9cb113
gh-118033: Fix __weakref__ not set for generic dataclasses (#118099) 2024-05-09 11:36:17 +03:00
Eric V. Smith
8945b7ff55
gh-109870: Dataclasses: batch up exec calls (gh-110851) 
Instead of calling `exec()` once for each function added to a dataclass, only call `exec()` once per dataclass. This can lead to speed improvements of up to 20%.
 2024-03-25 19:59:14 -04:00
et-repositories
75935746be
gh-116647: Fix recursive child in dataclasses (#116790) 2024-03-19 08:58:40 -06:00
Aviel Boag
a22d05f04c
gh-105866: fix dataclass with slots=True, weakref_slot=True (#105870) 
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
Co-authored-by: Carl Meyer <carl@oddbird.net>
 2024-03-18 18:53:14 -06:00
Nikita Sobolev
edc9d85c68
gh-109653: Just import recursive_repr in dataclasses (gh-109822) 2024-03-05 13:12:00 -05:00
keithasaurus
2d3f6b56c5
gh-114087: Speed up dataclasses._asdict_inner (#114088) 2024-01-18 09:03:20 -07:00
Phillip Schanely
339fc3c224
gh-114198: Rename dataclass __replace__ argument to 'self' (gh-114251) 
This change renames the dataclass __replace__ method's first argument
name from 'obj' to 'self'.
 2024-01-18 11:01:17 -05:00
Nikita Sobolev
b6000d2874
gh-109409: Fix inheritance of frozen dataclass from non-frozen dataclass mixins (gh-109437) 
Fix inheritance of frozen dataclass from non-frozen dataclass mixins
 2023-10-12 09:05:23 -04:00
Serhiy Storchaka
5b9a3fd6a0
gh-110273: dataclasses.replace() now raise TypeError for all invalid arguments (GH-110274) 
dataclasses.replace() now raises TypeError instead of ValueError if
specify keyword argument for a field declared with init=False or miss keyword
argument for required InitVar field.
 2023-10-04 09:20:14 +03:00
Serhiy Storchaka
6f3c138dfa
gh-108751: Add copy.replace() function (GH-108752) 
It creates a modified copy of an object by calling the object's
__replace__() method.

It is a generalization of dataclasses.replace(), named tuple's _replace()
method and replace() methods in various classes, and supports all these
stdlib classes.
 2023-09-06 23:55:42 +03:00
Eric V. Smith
e4275f4df3
gh-107838: In dataclasses, improve error message when a non-default field follows a default field. (gh-107842) 
Add the name of the previous default argument field in an error message.
 2023-08-10 10:39:13 -04:00
Tom Niget
2aaa83d5f5
Fix typo in comment (gh-107389) 2023-07-28 10:52:29 -04:00
Raymond Hettinger
18cfc1eea5
Small speedup for dataclass __eq__ and __repr__ (#104904) 
Faster __repr__ with str.__add__ moved inside the f-string. For __eq__ comp;are field by field instead of building temporary tuples.

Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
 2023-05-30 12:35:30 -04:00
Alex Waygood
7b8d7f56b6
gh-103000: Optimise dataclasses.asdict for the common case (#104364) 
Co-authored-by: David Ellis <ducksual@gmail.com>
 2023-05-10 22:43:51 +01:00
Nikita Sobolev
99aab61062 gh-104035: Do not ignore user-defined __{get,set}state__ in slotted frozen dataclasses (#104041) 2023-05-01 09:19:06 -06:00
Nikita Sobolev
b57f55c23e
gh-103449: Fix a bug in dataclass docstring generation (#103454) 2023-04-17 17:33:22 -06:00
David Ellis
d034590294
gh-103000: Optimise dataclasses asdict/astuple for common types (#103005) 
Co-authored-by: Carl Meyer <carl@oddbird.net>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
 2023-04-10 22:50:58 +01:00
Shantanu
718e86671f
gh-98886: Fix issues with dataclass fields with special underscore names (#102032) 
This commit prefixes `__dataclass` to several things in the locals dict:
- Names like `_dflt_` (which cause trouble, see first test)
- Names like `_type_` (not known to be able to cause trouble)
- `_return_type` (not known to able to cause trouble)
- `_HAS_DEFAULT_FACTORY` (which causes trouble, see second test)

In addition, this removes `MISSING` from the locals dict. As far as I can tell, this wasn't needed even in the initial implementation of dataclasses.py (and tests on that version passed with it removed). This makes me wary :-)

This is basically a continuation of #96151, where fixing this was welcomed in https://github.com/python/cpython/pull/98143#issuecomment-1280306360
 2023-03-25 14:40:11 -07:00
Nikita Sobolev
8ec6486462
gh-103027: Update dataclass.make_dataclass docstring (gh-103028) 
* gh-103027: Update `dataclass.make_dataclass` docstring
 2023-03-25 15:36:38 -04:00
Alex Waygood
baf4eb083c
gh-102947: Improve traceback when calling fields() on a non-dataclass (#102948) 2023-03-23 14:17:54 +00:00
Nikita Sobolev
d97757f793
gh-102069: Fix __weakref__ descriptor generation for custom dataclasses (#102075) 2023-03-13 15:42:05 -06:00
T
71e37d9079
gh-98169 dataclasses.astuple support DefaultDict (#98170) 
Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
 2023-03-13 14:46:35 -06:00
Ilya V. Schurov
767d3a8f6f
gh-88071: Update docstrings of dataclass' astuple and asdict (#101806) 
Update dataclasses.astuple and dataclasses.asdict docstrings to reflect that they deep copy objects in the field values.
 2023-03-10 17:27:41 -07:00
Nikita Sobolev
b48be8fa18
gh-102103: add module argument to dataclasses.make_dataclass (#102104) 2023-03-10 17:26:46 -07:00
Xuehai Pan
ee6f8413a9
gh-102578: Optimise setting and deleting mutable attributes on non-dataclass subclasses of frozen dataclasses (gh-102573) 2023-03-10 19:21:22 -05:00
Alex Waygood
401d7a7f00
gh-102515: Remove unused imports in the Lib/ directory (#102516) 2023-03-08 11:45:38 +00:00
Carl Meyer
0a7936a38f
gh-90104: avoid RecursionError on recursive dataclass field repr (gh-100756) 
Avoid RecursionError on recursive dataclass field repr
 2023-01-05 19:19:40 -05:00
Shantanu
29f98b46b7
gh-96151: Use a private name for passing builtins to dataclass. This now allows for a field named BUILTIN (gh-98143) 2022-10-31 08:31:01 -04:00
Tiger
c46a423a52
bpo-35540 dataclasses.asdict now supports defaultdict fields (gh-32056) 2022-10-06 17:11:59 -07:00
Nikita Sobolev
4f380db1a5
gh-96142: add missing params to dataclass._DataclassParams (gh-96382) 2022-10-04 09:53:28 -07:00
Shantanu
72b5a55bc8
Add comment to subtle dataclass code (gh-96133) 
In the PR that made this change, 1st1 left a "note to self: add a
comment explaining this". This comment was never added.
https://github.com/python/cpython/pull/9518/files#r280608117

I was reading this code and it wasn't obvious to me why we weren't
exec-ing directly into locals. So I got to learn something new :-)
https://docs.python.org/3/reference/executionmodel.html#interaction-with-dynamic-features
 2022-10-03 17:30:04 -07:00
larryhastings
00b5a08c80
gh-97799: use inspect.get_annotations in dataclass (#97800) 
dataclass used to get the annotations on a class object using
cls.__dict__.get('__annotations__').  Now that it always imports
inspect, it can use inspect.get_annotations, which is modern
best practice for coping with annotations.
 2022-10-03 15:46:09 -07:00
Roman Novak
b8c528694e
Fix minor docstring issues in dataclasses.py. (gh-93024) 
Previously, when using `functools.wrap` around them (and inherit their docstrings), sphinx renders the docstrings badly and raises warnings about wrong indent.
 2022-07-26 10:48:58 -04:00
Tom Fryers
a10cf2f6b3
Improve dataclass docstring (gh-94686) 2022-07-09 14:26:24 -04:00
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
Bluenix
5849af7a80
GH-93521: For dataclasses, filter out __weakref__ slot if present in bases (GH-93535) 2022-06-07 20:53:08 -04:00
Eric V. Smith
5f9c0f5ddf
Add weakref_slot to dataclass decorator, to allow instances with slots to be weakref-able. (#92160) 2022-05-02 10:36:39 -06:00
Hugo van Kemenade
6881ea936e
bpo-47126: Update to canonical PEP URLs specified by PEP 676 (GH-32124) 2022-03-30 12:00:27 +01:00
Arie Bovenberg
82e9b0bb0a
bpo-46382 dataclass(slots=True) now takes inherited slots into account (GH-31980) 
Do not include any members in __slots__ that are already in a base class's __slots__.
 2022-03-19 17:01:17 -04:00
Eric V. Smith
e029c53e1a
bpo-44674: Use unhashability as a proxy for mutability for default dataclass __init__ arguments. (GH-29867) 
`@dataclass` in 3.10 prohibits using list, dict, or set as default values. It does this to avoid the mutable default problem. This test is both too strict, and not strict enough. Too strict, because some immutable subclasses should be safe, and not strict enough, because other mutable types should be prohibited. With this change applied, `@dataclass` now uses unhashability as a proxy for mutability: if objects aren't hashable, they're assumed to be mutable.
 2021-12-11 16:12:17 -05:00