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* [3.10] gh-102947: Improve traceback when calling `fields()` on a ↵Alex Waygood2023-03-231-1/+1
| | | | non-dataclass (#102948) (#102954)
* [3.10] gh-90104: avoid RecursionError on recursive dataclass field repr ↵Carl Meyer2023-01-061-21/+21
| | | | | | | | | (gh-100756) (GH-100785) Avoid RecursionError on recursive dataclass field repr (cherry picked from commit 0a7936a38f0bab1619ee9fe257880a51c9d839d5) Automerge-Triggered-By: GH:ericvsmith
* [3.10] gh-96151: Use a private name for passing builtins to dataclass. This ↵Miss Islington (bot)2022-10-311-5/+4
| | | | | | | | | | now allows for a field named BUILTIN (gh-98143) (gh-98899) gh-96151: Use a private name for passing builtins to dataclass. This now allows for a field named BUILTIN (gh-98143) (cherry picked from commit 29f98b46b77ee528477b9a7b335974b9682f7f14) Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com> Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
* bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of ↵Miss Islington (bot)2021-12-051-1/+1
| | | | | | | types.GenericAlias (GH-29294) (cherry picked from commit 446be166861b2f08f87f74018113dd98ca5fca02) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-45662: Fix the repr of InitVar with a type alias to the built-in class ↵Miss Islington (bot)2021-12-051-1/+1
| | | | | | | | (GH-29291) For example, InitVar[list[int]]. (cherry picked from commit 1fd4de5bddbbf2a97cdbac4d298c89e1156bdc6c) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-44649: Fix dataclasses(slots=True) with a field with a default, but ↵Miss Islington (bot)2021-11-221-6/+13
| | | | | | | | init=False (GH-29692) Special handling is needed, because for non-slots dataclasses the instance attributes are not set: reading from a field just references the class's attribute of the same name, which contains the default value. But this doesn't work for classes using __slots__: they don't read the class's attribute. So in that case (and that case only), initialize the instance attribute. Handle this for both normal defaults, and for fields using default_factory. (cherry picked from commit d3062f672c92855b7e9e962ad4bf1a67abd4589b) Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>
* Added kw_only parameter to make_dataclasses. (GH-29679)Miss Islington (bot)2021-11-201-2/+2
| | | | | (cherry picked from commit f7638dd0f90b2afd9295ee179119f4a29859953a) Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>
* Fix dataclassses spelling (GH-28837) (GH-28841)Miss Islington (bot)2021-10-091-1/+1
| | | | | | | (cherry picked from commit 5b4a7675bcfc6368aff955f4a6231579718f5dad) Co-authored-by: Landon Yarrington <33426811+jly36963@users.noreply.github.com> Co-authored-by: Landon Yarrington <33426811+jly36963@users.noreply.github.com>
* Fix dataclass comment typo _eq__ -> __eq__ (GH-26433) (GH-26436)Miss Islington (bot)2021-05-291-1/+1
| | | | | | | (cherry picked from commit 7e6f2375698036d62464c238059ef2073755fdaf) Co-authored-by: Sean Grady <vedicmonk@gmail.com> Co-authored-by: Sean Grady <vedicmonk@gmail.com>
* bpo-44015: dataclasses should allow KW_ONLY to be specified only once per ↵Eric V. Smith2021-05-031-0/+5
| | | | | class (GH-25841) bpo-44015: Raise a TypeError if KW_ONLY is specified more than once.
* If using a frozen class with slots, add __getstate__ and __setstate__ to set ↵Eric V. Smith2021-05-011-2/+21
| | | | the instance values. (GH-25786)
* bpo-42269: Add slots parameter to dataclass decorator (GH-24171)Yurii Karabas2021-05-011-6/+39
| | | Add slots parameter to dataclass decorator and make_dataclass function.
* Add keyword-only fields to dataclasses. (GH=25608)Eric V. Smith2021-04-261-32/+101
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* bpo-38605: Revert making 'from __future__ import annotations' the default ↵Pablo Galindo2021-04-211-10/+3
| | | | | | (GH-25490) This reverts commits 044a1048ca93d466965afc027b91a5a9eb9ce23c and 1be456ae9d53bb1cba2b24fc86175c282d1c2169, adapting the code to changes that happened after it.
* Fix typo in a dataclasses comment. (GH-25454)Eric V. Smith2021-04-171-1/+1
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* Remove an unnecessary copy of the 'namespace' parameter to make_dataclass(). ↵Eric V. Smith2021-04-131-8/+13
| | | | (GH-25372)
* bpo-43764: Add match_args=False parameter to dataclass decorator and to ↵Eric V. Smith2021-04-111-14/+24
| | | | | make_dataclasses function. (GH-25337) Add match_args=False parameter to dataclass decorator and to make_dataclass function.
* bpo-43764: Fix `__match_args__` generation logic for dataclasses (GH-25284)Brandt Bucher2021-04-081-1/+1
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* bpo-43176: Fix processing of empty dataclasses (GH-24484)Iurii Kemaev2021-04-061-1/+1
| | | | | When a dataclass inherits from an empty base, all immutability checks are omitted. This PR fixes this and adds tests for it. Automerge-Triggered-By: GH:ericvsmith
* bpo-36470: Allow dataclasses.replace() to handle InitVars with default ↵Zackery Spytz2021-04-051-1/+1
| | | | | | | values (GH-20867) Co-Authored-By: Claudiu Popa <pcmanticore@gmail.com> Automerge-Triggered-By: GH:ericvsmith
* bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)Brandt Bucher2021-02-261-0/+12
| | | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Talin <viridia@gmail.com> Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-41747: Ensure all dataclass methods uses their parents' qualname (GH-22155)Batuhan Taskaya2020-10-211-2/+9
| | | | | * bpo-41747: Ensure all dataclass methods uses their parents' qualname Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-38605: Make 'from __future__ import annotations' the default (GH-20434)Batuhan Taskaya2020-10-061-3/+10
| | | | | The hard part was making all the tests pass; there are some subtle issues here, because apparently the future import wasn't tested very thoroughly in previous Python versions. For example, `inspect.signature()` returned type objects normally (except for forward references), but strings with the future import. We changed it to try and return type objects by calling `typing.get_type_hints()`, but fall back on returning strings if that function fails (which it may do if there are future references in the annotations that require passing in a specific namespace to resolve).
* bpo-41905: Add abc.update_abstractmethods() (GH-22485)Ben Avrahami2020-10-061-0/+3
| | | | This function recomputes `cls.__abstractmethods__`. Also update `@dataclass` to use it.
* Fix typo in dataclasses module (GH-21109)Jürgen Gmach2020-06-241-1/+1
| | | Automerge-Triggered-By: @matrixise
* bpo-39481: PEP 585 for dataclasses, mailbox, contextvars (GH-19425)Ethan Smith2020-04-141-0/+3
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* bpo-34776: Fix dataclasses to support __future__ "annotations" mode (#9518)Yury Selivanov2019-12-091-34/+53
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* bpo-38431: Fix __repr__ method of InitVar to work with typing objects. ↵Samuel Colvin2019-10-131-1/+6
| | | | | | (GH-16702)
* bpo-38209: Simplify dataclasses.InitVar by using __class_getitem__(). (GH-16255)Serhiy Storchaka2019-09-221-5/+4
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* bpo-37868: Improve is_dataclass for instances. (GH-15325)Eric V. Smith2019-08-201-2/+3
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* Fix typos in docs, comments and test assert messages (#14872)Min ho Kim2019-07-211-1/+1
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* bpo-37163: Make the obj argument of dataclasses.replace() a positional-only. ↵Serhiy Storchaka2019-06-261-1/+1
| | | | (GH-14390)
* bpo-33569 Preserve type information with dataclasses.InitVar (GH-8927)Augusto Hack2019-06-031-3/+10
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* bpo-37116: Use PEP 570 syntax for positional-only parameters. (GH-13700)Serhiy Storchaka2019-06-011-6/+3
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* bpo-35960: Fix dataclasses.field throwing away empty metadata. (GH-11815)Christopher Hunt2019-02-121-1/+1
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* bpo-33947: dataclasses no longer can raise RecursionError in repr (GF9916)Srinivas Thatiparthy (శ్రీనివాస్ తాటిపర్తి)2018-10-191-6/+31
| | | The reprlib code was copied here instead of importing reprlib. I'm not sure if we really need to avoid the import, but since I expect dataclasses to be more common that reprlib, it seems wise. Plus, the code is small.
* bpo-34363: dataclasses.asdict() and .astuple() now handle fields which are ↵Eric V. Smith2018-09-141-2/+38
| | | | namedtuples. (GH-9151)
* bpo-34213: Allow dataclasses to work with a field named 'object'. (GH-8452)Vadim Pushtaev2018-08-121-1/+7
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* Fix typo in dataclasses documentation (GH-8102)Artjom2018-07-051-1/+1
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* bpo-33805: Improve error message of dataclasses.replace() (GH-7580)Dong-hee Na2018-06-231-0/+3
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* bpo-33796: Ignore ClassVar for dataclasses.replace(). (GH-7488)Eric V. Smith2018-06-071-1/+5
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* bpo-33536: Validate make_dataclass() field names. (GH-6906)Eric V. Smith2018-05-161-0/+15
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* bpo-33534: Remove unneeded test. (GH-6897)Eric V. Smith2018-05-161-6/+5
| | | This condition as already tested before this code is called.
* Reflow dataclasses comments (GH-6893)Eric V. Smith2018-05-161-170/+176
| | | To be more consistent with other code (and so people stop hassling me!), reflow the dataclasses comments to not use a single space indentation when continuing a paragraph of text.
* bpo-33453: Handle string type annotations in dataclasses. (GH-6768)Eric V. Smith2018-05-161-18/+116
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* bpo-33517: dataclasses: Add the field type to Field repr (GH-6858)Eric V. Smith2018-05-151-4/+10
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* bpo-33502: dataclass._Dataclassparams repr: use repr of each member. (GH-6812)Eric V. Smith2018-05-141-6/+6
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* bpo-33494: Change dataclasses.Fields repr to use the repr of each of its ↵Eric V. Smith2018-05-141-8/+8
| | | | members (GH-6798)
* Allow dynamic creation of generic dataclasses (GH-6319)Ivan Levkivskyi2018-03-311-1/+3
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* bpo-33175: dataclasses should look up __set_name__ on class, not instance ↵Eric V. Smith2018-03-291-2/+2
| | | | (GH-6305)
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