Eric V. Smith
01d618c560
bpo-33134: dataclasses: use function dispatch table for hash, instead of a string lookup which then is tested with if tests. (GH-6222)
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* Change _hash_action to be a function table lookup, instead of a list
of strings which is then tested with if statements.
2018-03-24 22:10:14 -04:00
Eric V. Smith
f96ddade00
Trivial dataclass cleanups: (GH-6218)
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- When adding a single element to a list, use .append() instead of
+= and creating a new list.
- For consistency, import the copy module, instead of just deepcopy. This
leaves only a module at the class level, instead of a function.
- Improve some comments.
- Improve some whitespace.
- Use tuples instead of lists.
- Simplify a test.
2018-03-24 17:20:26 -04:00
Eric V. Smith
56970b8ce9
bpo-32505: dataclasses: raise TypeError if a member variable is of type Field, but doesn't have a type annotation. (GH-6192)
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If a dataclass has a member variable that's of type Field, but it doesn't have a type annotation, raise TypeError.
2018-03-22 16:28:48 -04:00
Eric V. Smith
8e4560a9da
Add 'Field' to dataclasses.__all__. (GH-6182)
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- Add missing 'Field' to __all__.
- Improve tests to catch this.
2018-03-21 17:10:22 -04:00
Eric V. Smith
8f6eccdc64
bpo-32896: Fix error when subclassing a dataclass with a field that uses a default_factory (GH-6170)
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Fix the way that new annotations in a class are detected.
2018-03-20 22:00:23 -04:00
Eric V. Smith
7389fd935c
bpo-33100: Dataclasses now handles __slots__ and default values correctly. (GH-6152)
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If the class has a member that's a MemberDescriptorType, it's not a default value, it's from that member being in __slots__.
2018-03-19 21:07:51 -04:00
Eric V. Smith
f199bc655e
bpo-32953: Dataclasses: frozen should not be inherited for non-dataclass derived classes ( #6147 )
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If a non-dataclass derives from a frozen dataclass, allow attributes to be set.
Require either all of the dataclasses in a class hierarchy to be frozen, or all non-frozen.
Store `@dataclass` parameters on the class object under `__dataclass_params__`. This is needed to detect frozen base classes.
2018-03-18 20:40:34 -04:00
Eric V. Smith
5da8cfb838
Fixed incorrect default value for dataclass unsafe_hash. (GH-5949)
2018-03-01 08:01:41 -05:00
Eric V. Smith
2fa6b9eae0
bpo-32960: For dataclasses, disallow inheriting frozen from non-frozen classes and vice-versa, (GH-5919)
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This restriction will be relaxed at a future date.
2018-02-26 20:38:33 -05:00
Eric V. Smith
dbf9cff48a
bpo-32929: Dataclasses: Change the tri-state hash parameter to the boolean unsafe_hash. ( #5891 )
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unsafe_hash=False is now the default. It is the same behavior as the old hash=None parameter. unsafe_hash=True will try to add __hash__. If it already exists, TypeError is raised.
2018-02-25 21:30:17 -05:00
Eric V. Smith
ea8fc52e75
bpo-32513: Make it easier to override dunders in dataclasses. (GH-5366)
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Class authors no longer need to specify repr=False if they want to provide a custom __repr__ for dataclasses. The same thing applies for the other dunder methods that the dataclass decorator adds. If dataclass finds that a dunder methods is defined in the class, it will not overwrite it.
2018-01-27 19:07:40 -05:00
Ivan Levkivskyi
d911e40e78
bpo-32226: PEP 560: improve typing module ( #4906 )
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This PR re-designs the internal typing API using the new PEP 560 features.
However, there are only few minor changes in the public API.
2018-01-20 11:23:59 +00:00
Raymond Hettinger
d55209d5b1
Fix obvious typos in docstrings ( #5151 )
2018-01-10 20:56:41 -08:00
Eric V. Smith
d13889214a
bpo-32506: Change dataclasses from OrderedDict to plain dict. (gh-5131)
2018-01-07 14:30:17 -05:00
Eric V. Smith
d327ae6ba1
Fix dataclasses docstring typo. (gh-5118)
2018-01-07 08:19:45 -05:00
Eric V. Smith
d80b443f02
bpo-32279: Add additional params to make_dataclass(), pass through to dataclass(). (gh-5117)
2018-01-06 17:09:58 -05:00
Eric V. Smith
ed7d429ebb
bpo-32278: Allow dataclasses.make_dataclass() to omit type information. (gh-5115)
2018-01-06 16:14:03 -05:00
Eric V. Smith
e7ba013d87
bpo-32499: Add dataclasses.is_dataclass(obj), which returns True if obj is a dataclass or an instance of one. ( #5113 )
2018-01-06 12:41:53 -05:00
Eric V. Smith
03220fdb26
bpo-32427: Expose dataclasses.MISSING object. ( #5045 )
2017-12-29 13:59:58 -05:00
Eric V. Smith
f0db54a0a1
bpo-32214: Implement PEP 557: Data Classes ( #4704 )
2017-12-04 16:58:55 -05:00
