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* Add notes for maintaining ABCs (#92736)Raymond Hettinger2022-05-121-0/+26
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* Minor code nit: Move an unrelated statement out of a try clause in ↵Géry Ogam2022-04-061-2/+2
| | | | Sequence.index (GH-32330)
* bpo-44796: Unify TypeVar and ParamSpec substitution (GH-31143)Serhiy Storchaka2022-03-111-54/+9
| | | | | | Add methods __typing_subst__() in TypeVar and ParamSpec. Simplify code by using more object-oriented approach, especially the C code for types.GenericAlias and the Python code for collections.abc.Callable.
* replace `self` param with more appropriate `cls` in classmethods (GH-31402)Josh Smith2022-02-201-2/+2
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* bpo-44791: Fix substitution of ParamSpec in Concatenate with different ↵Serhiy Storchaka2022-01-271-1/+4
| | | | | | | | | parameter expressions (GH-27518) * Substitution with a list of types returns now a tuple of types. * Substitution with Concatenate returns now a Concatenate with concatenated lists of arguments. * Substitution with Ellipsis is not supported.
* bpo-44801: Check arguments in substitution of ParamSpec in Callable (GH-27585)Serhiy Storchaka2021-08-041-26/+26
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* bpo-44794: Merge tests for typing.Callable and collection.abc.Callable ↵Serhiy Storchaka2021-07-311-2/+1
| | | | (GH-27507)
* bpo-44704: Make Set._hash consistent with frozenset.__hash__ (GH-27281)Dennis Sweeney2021-07-211-0/+1
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* bpo-43977: Use tp_flags for collection matching (GH-25723)Mark Shannon2021-04-301-4/+6
| | | | | | | | | | | | | * Add Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING, add to all relevant standard builtin classes. * Set relevant flags on collections.abc.Sequence and Mapping. * Use flags in MATCH_SEQUENCE and MATCH_MAPPING opcodes. * Inherit Py_TPFLAGS_SEQUENCE and Py_TPFLAGS_MAPPING. * Add NEWS * Remove interpreter-state map_abc and seq_abc fields.
* bpo-41559: Change PEP 612 implementation to pure Python (#25449)Ken Jin2021-04-281-9/+55
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* bpo-41559: Implement PEP 612 - Add ParamSpec and Concatenate to typing (#23702)kj2020-12-241-6/+22
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* bpo-42195: Override _CallableGenericAlias's __getitem__ (GH-23915)kj2020-12-241-1/+11
| | | Added `__getitem__` for `_CallableGenericAlias` so that it returns a subclass (itself) of `types.GenericAlias` rather than the default behavior of returning a plain `types.GenericAlias`. This fixes `repr` issues occuring after `TypeVar` substitution arising from the previous behavior.
* bpo-42195: Ensure consistency of Callable's __args__ in collections.abc and ↵kj2020-12-131-1/+68
| | | | typing (GH-23060)
* Fix: Docstrings hidden by slots. (GH-23352)Julien Palard2020-11-171-15/+6
| | | Some `__slots__` where before the docstring, hiding them.
* bpo-39481: Implementation for PEP 585 (#18239)Guido van Rossum2020-04-071-0/+27
| | | | | | | | | | | | This implements things like `list[int]`, which returns an object of type `types.GenericAlias`. This object mostly acts as a proxy for `list`, but has attributes `__origin__` and `__args__` that allow recovering the parts (with values `list` and `(int,)`. There is also an approximate notion of type variables; e.g. `list[T]` has a `__parameters__` attribute equal to `(T,)`. Type variables are objects of type `typing.TypeVar`.
* bpo-37116: Use PEP 570 syntax for positional-only parameters. (GH-13700)Serhiy Storchaka2019-06-011-19/+10
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* bpo-34427: Fix infinite loop when calling MutableSequence.extend() on self ↵Naris R2018-08-301-0/+2
| | | | (GH-8813)
* bpo-32467: Let collections.abc.ValuesView inherit from Collection (#5152)Raymond Hettinger2018-01-121-1/+1
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* bpo-31942: Document optional support of start and stop attributes in ↵Nitish Chandra2017-12-121-0/+3
| | | | Sequence.index method (#4277)
* bpo-29762: More use "raise from None". (#569)Serhiy Storchaka2017-04-051-2/+2
| | | This hides unwanted implementation details from tracebacks.
* bpo-26915: Test identity first in membership operation in index() and ↵Xiang Zhang2017-03-081-2/+3
| | | | | | count() methods of collections.abc.Sequence (GH-503)
* Issue #28720: Add collections.abc.AsyncGenerator.Yury Selivanov2016-11-161-1/+58
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* Merge from 3.5.Serhiy Storchaka2016-10-081-0/+2
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| * Issue #28376: The type of long range iterator is now registered as Iterator.Serhiy Storchaka2016-10-081-0/+2
| | | | | | | | Patch by Oren Milman.
* | Merge from 3.5.Serhiy Storchaka2016-10-081-2/+2
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| * Issue #28376: Fixed typos.Serhiy Storchaka2016-10-081-2/+2
| | | | | | | | Based on patch by Oren Milman.
* | Issue 27598: Add Collections to collections.abc.Guido van Rossum2016-08-231-4/+13
| | | | | | | | Patch by Ivan Levkivskyi, docs by Neil Girdhar.
* | Anti-registration of various ABC methods.Guido van Rossum2016-08-181-49/+29
| | | | | | | | | | | | | | | | | | | | - Issue #25958: Support "anti-registration" of special methods from various ABCs, like __hash__, __iter__ or __len__. All these (and several more) can be set to None in an implementation class and the behavior will be as if the method is not defined at all. (Previously, this mechanism existed only for __hash__, to make mutable classes unhashable.) Code contributed by Andrew Barnert and Ivan Levkivskyi.
* | Merge 3.5 (issue #27243)Yury Selivanov2016-06-091-2/+2
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| * Issue #27243: Fix __aiter__ protocolYury Selivanov2016-06-091-2/+2
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* | Issue 26915: Add identity checks to the collections ABC __contains__ methods.Raymond Hettinger2016-05-051-3/+4
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* | Add collections.Reversible. Patch by Ivan Levkivskyi. Fixes issue #25987.Guido van Rossum2016-04-041-2/+21
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* Issue #24400: Resurrect inspect.isawaitable()Yury Selivanov2015-07-031-16/+1
| | | | | | | | collections.abc.Awaitable and collections.abc.Coroutine no longer use __instancecheck__ hook to detect generator-based coroutines. inspect.isawaitable() can be used to detect generator-based coroutines and to distinguish them from regular generator objects.
* Issue #24400: Introduce a distinct type for 'async def' coroutines.Yury Selivanov2015-06-221-10/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary of changes: 1. Coroutines now have a distinct, separate from generators type at the C level: PyGen_Type, and a new typedef PyCoroObject. PyCoroObject shares the initial segment of struct layout with PyGenObject, making it possible to reuse existing generators machinery. The new type is exposed as 'types.CoroutineType'. As a consequence of having a new type, CO_GENERATOR flag is no longer applied to coroutines. 2. Having a separate type for coroutines made it possible to add an __await__ method to the type. Although it is not used by the interpreter (see details on that below), it makes coroutines naturally (without using __instancecheck__) conform to collections.abc.Coroutine and collections.abc.Awaitable ABCs. [The __instancecheck__ is still used for generator-based coroutines, as we don't want to add __await__ for generators.] 3. Add new opcode: GET_YIELD_FROM_ITER. The opcode is needed to allow passing native coroutines to the YIELD_FROM opcode. Before this change, 'yield from o' expression was compiled to: (o) GET_ITER LOAD_CONST YIELD_FROM Now, we use GET_YIELD_FROM_ITER instead of GET_ITER. The reason for adding a new opcode is that GET_ITER is used in some contexts (such as 'for .. in' loops) where passing a coroutine object is invalid. 4. Add two new introspection functions to the inspec module: getcoroutinestate(c) and getcoroutinelocals(c). 5. inspect.iscoroutine(o) is updated to test if 'o' is a native coroutine object. Before this commit it used abc.Coroutine, and it was requested to update inspect.isgenerator(o) to use abc.Generator; it was decided, however, that inspect functions should really be tailored for checking for native types. 6. sys.set_coroutine_wrapper(w) API is updated to work with only native coroutines. Since types.coroutine decorator supports any type of callables now, it would be confusing that it does not work for all types of coroutines. 7. Exceptions logic in generators C implementation was updated to raise clearer messages for coroutines: Before: TypeError("generator raised StopIteration") After: TypeError("coroutine raised StopIteration")
* Issue 24315: Make collections.abc.Coroutine derived from AwaitableYury Selivanov2015-05-291-19/+30
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* Issue #23086: Add start and stop arguments to the Sequence.index() mixin method.Raymond Hettinger2015-05-231-5/+15
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* Issue 24184: Add AsyncIterator and AsyncIterable to collections.abc.Yury Selivanov2015-05-141-1/+38
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* PEP 0492 -- Coroutines with async and await syntax. Issue #24017.Yury Selivanov2015-05-121-1/+75
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* Issue #24018: Add a collections.Generator abstract base class.Raymond Hettinger2015-05-091-1/+60
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* Issue #21408: The default __ne__() now returns NotImplemented if __eq__()Serhiy Storchaka2015-01-261-6/+0
|\ | | | | | | returned NotImplemented. Removed incorrect implementations of __ne__().
| * Issue #21408: The default __ne__() now returns NotImplemented if __eq__()Serhiy Storchaka2015-01-261-6/+0
| | | | | | | | returned NotImplemented. Removed incorrect implementations of __ne__().
* | Issue #22609: Constructors and update methods of mapping classes in theSerhiy Storchaka2014-11-271-17/+18
|\ \ | |/ | | | | collections module now accept the self keyword argument.
| * Issue #22609: Constructors and update methods of mapping classes in theSerhiy Storchaka2014-11-271-17/+18
| | | | | | | | collections module now accept the self keyword argument.
* | mergeRaymond Hettinger2014-07-021-1/+1
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| * Fix guidance for subclassing collections.Set()Raymond Hettinger2014-07-021-1/+1
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* | mergeRaymond Hettinger2014-05-261-2/+21
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| * Issue 8743: Improve interoperability between sets and the collections.Set ↵Raymond Hettinger2014-05-261-2/+21
| | | | | | | | abstract base class.
* | Issue #21421: Add __slots__ to the MappingViews ABCs.Raymond Hettinger2014-05-041-0/+8
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* Issue #19218: set __name__ of _collections_abc to collections.abc in order ↵Christian Heimes2013-10-131-0/+6
| | | | to fix tests and keep beautiful qualified names.
* Issue #19218: Rename collections.abc to _collections_abc in order to speed ↵Christian Heimes2013-10-131-0/+728
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