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path: root/Lib/test/test_dataclasses.py
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* Add weakref_slot to dataclass decorator, to allow instances with slots to be ↵Eric V. Smith2022-05-021-0/+72
| | | | weakref-able. (#92160)
* bpo-46382 dataclass(slots=True) now takes inherited slots into account ↵Arie Bovenberg2022-03-191-8/+43
| | | | | (GH-31980) Do not include any members in __slots__ that are already in a base class's __slots__.
* bpo-46757: Add a test to verify dataclass's __post_init__ isn't being ↵Eric V. Smith2022-02-231-0/+59
| | | | automatically added. (GH-31523)
* bpo-44674: Use unhashability as a proxy for mutability for default dataclass ↵Eric V. Smith2021-12-111-0/+26
| | | | | __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.
* bpo-45663: Fix is_dataclass() for dataclasses which are subclasses of ↵Serhiy Storchaka2021-12-051-0/+12
| | | | types.GenericAlias (GH-29294)
* bpo-45662: Fix the repr of InitVar with a type alias to the built-in class ↵Serhiy Storchaka2021-12-051-0/+4
| | | | | (GH-29291) For example, InitVar[list[int]].
* bpo-44649: Fix dataclasses(slots=True) with a field with a default, but ↵Eric V. Smith2021-11-221-0/+22
| | | | | 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.
* Added kw_only parameter to make_dataclasses. (GH-29679)Eric V. Smith2021-11-201-0/+11
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* bpo-45566: `test_frozen_pickle` checks all `pickle` protocols (GH-29150)Nikita Sobolev2021-10-241-4/+17
| | | | | Refs https://github.com/python/cpython/pull/29147 Automerge-Triggered-By: GH:ericvsmith
* Fix dataclassses spelling (GH-28837)Landon Yarrington2021-10-091-1/+1
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* Fix typos in the Lib directory (GH-28775)Christian Clauss2021-10-061-1/+1
| | | | | Fix typos in the Lib directory as identified by codespell. Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
* bpo-45081: Fix __init__ method generation when inheriting from Protocol ↵Yurii Karabas2021-09-021-1/+21
| | | | | (GH-28121) Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
* bpo-44015: dataclasses should allow KW_ONLY to be specified only once per ↵Eric V. Smith2021-05-031-0/+77
| | | | | 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. Smith2021-05-011-0/+13
| | | | the instance values. (GH-25786)
* bpo-42269: Add slots parameter to dataclass decorator (GH-24171)Yurii Karabas2021-05-011-0/+53
| | | Add slots parameter to dataclass decorator and make_dataclass function.
* Add additional keyword-only tests. (GH-25633)Eric V. Smith2021-04-261-1/+29
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* Add keyword-only fields to dataclasses. (GH=25608)Eric V. Smith2021-04-261-0/+159
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* bpo-38605: Revert making 'from __future__ import annotations' the default ↵Pablo Galindo2021-04-211-29/+48
| | | | | | (GH-25490) This reverts commits 044a1048ca93d466965afc027b91a5a9eb9ce23c and 1be456ae9d53bb1cba2b24fc86175c282d1c2169, adapting the code to changes that happened after it.
* bpo-43764: Add match_args=False parameter to dataclass decorator and to ↵Eric V. Smith2021-04-111-0/+41
| | | | | 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 Bucher2021-04-081-0/+8
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* bpo-43176: Fix processing of empty dataclasses (GH-24484)Iurii Kemaev2021-04-061-0/+24
| | | | | 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-42128: __match_args__ can't be a list anymore (GH-25203)Brandt Bucher2021-04-061-1/+1
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* bpo-36470: Allow dataclasses.replace() to handle InitVars with default ↵Zackery Spytz2021-04-051-0/+18
| | | | | | | 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/+16
| | | | | 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 Taskaya2020-10-211-0/+24
| | | | | * 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 Taskaya2020-10-061-49/+30
| | | | | 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/+37
| | | | This function recomputes `cls.__abstractmethods__`. Also update `@dataclass` to use it.
* bpo-40389: Improve repr of typing.Optional (#19714)Vlad Serebrennikov2020-04-301-1/+1
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* Add test cases for dataclasses. (#17909)Karthikeyan Singaravelan2020-01-091-0/+19
| | | | | | | | * Add test cases for dataclasses. * Add test for repr output of field. * Add test for ValueError to be raised when both default and default_factory are passed.
* bpo-34776: Fix dataclasses to support __future__ "annotations" mode (#9518)Yury Selivanov2019-12-091-0/+12
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* bpo-38431: Fix __repr__ method of InitVar to work with typing objects. ↵Samuel Colvin2019-10-131-0/+2
| | | | | | (GH-16702)
* Unmark files as executable that can't actually be executed. (GH-15353)Greg Price2019-08-211-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | There are plenty of legitimate scripts in the tree that begin with a `#!`, but also a few that seem to be marked executable by mistake. Found them with this command -- it gets executable files known to Git, filters to the ones that don't start with a `#!`, and then unmarks them as executable: $ git ls-files --stage \ | perl -lane 'print $F[3] if (!/^100644/)' \ | while read f; do head -c2 "$f" | grep -qxF '#!' \ || chmod a-x "$f"; \ done Looking at the list by hand confirms that we didn't sweep up any files that should have the executable bit after all. In particular * The `.psd` files are images from Photoshop. * The `.bat` files sure look like things that can be run. But we have lots of other `.bat` files, and they don't have this bit set, so it must not be needed for them. Automerge-Triggered-By: @benjaminp
* bpo-37868: Improve is_dataclass for instances. (GH-15325)Eric V. Smith2019-08-201-0/+26
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* Fix typos in docs, comments and test assert messages (#14872)Min ho Kim2019-07-211-3/+3
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* bpo-33569 Preserve type information with dataclasses.InitVar (GH-8927)Augusto Hack2019-06-031-0/+6
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* bpo-36766: Typos in docs and code comments (GH-13116)penguindustin2019-05-061-1/+1
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* bpo-36678: Rename duplicate tests in test_dataclasses (GH-12899)Windson yang2019-04-221-15/+3
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* bpo-35960: Fix dataclasses.field throwing away empty metadata. (GH-11815)Christopher Hunt2019-02-121-2/+12
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* bpo-33947: dataclasses no longer can raise RecursionError in repr (GF9916)Srinivas Thatiparthy (శ్రీనివాస్ తాటిపర్తి)2018-10-191-0/+86
| | | 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. Smith2018-09-141-0/+79
| | | | namedtuples. (GH-9151)
* bpo-34213: Allow dataclasses to work with a field named 'object'. (GH-8452)Vadim Pushtaev2018-08-121-0/+50
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* bpo-34184: Fix running Lib/test/test_dataclasses.py as a script. (GH-8382)Serhiy Storchaka2018-07-231-5/+5
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* bpo-33805: Improve error message of dataclasses.replace() (GH-7580)Dong-hee Na2018-06-231-0/+16
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* bpo-33796: Ignore ClassVar for dataclasses.replace(). (GH-7488)Eric V. Smith2018-06-071-85/+120
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* bpo-33536: Validate make_dataclass() field names. (GH-6906)Eric V. Smith2018-05-161-108/+165
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* bpo-33453: Handle string type annotations in dataclasses. (GH-6768)Eric V. Smith2018-05-161-2/+151
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* Clean up and enhance frozen dataclass tests. (GH-6380)Eric V. Smith2018-04-051-27/+38
| | | | | * Add a test for frozen with unhashable field value. * Improve a comment.
* Allow dynamic creation of generic dataclasses (GH-6319)Ivan Levkivskyi2018-03-311-1/+18
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* bpo-33175: dataclasses should look up __set_name__ on class, not instance ↵Eric V. Smith2018-03-291-5/+34
| | | | (GH-6305)
* bpo-33141: Have dataclasses.Field pass through __set_name__ to any default ↵Eric V. Smith2018-03-261-0/+42
| | | | | argument. (GH-6260) This is part of PEP 487 and the descriptor protocol.
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