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Merged
gvanrossum merged 18 commits into from
Oct 6, 2020
Merged

bpo-38605: Make postponed evaluation of annotations default #20434

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4c5b314
make future annotations default
isidentical May 27, 2020
3402877
Fix test_coroutines
isidentical May 27, 2020
9a131a2
Regenerate bytecode for test_dis
isidentical May 27, 2020
fdcea4d
Regenerate static strings for docxmlrpc and pydoc tests
isidentical May 27, 2020
14e7c2d
Update tests for: syntax, opcodes, posonly, grammar...
isidentical May 27, 2020
f217d48
Refactor inspect tests(+doctests) with string annotations
isidentical May 27, 2020
6209fa0
Add documentation, tests for annotations
isidentical May 27, 2020
bbf01bb
Escape double stringified annotations on typing.ForwardRef
isidentical May 27, 2020
246577d
Fix test_dataclassess
isidentical May 27, 2020
1d77917
Initial attempt for typing fix
isidentical May 29, 2020
6bd5fee
Rename test, apply doc suggestion
isidentical May 29, 2020
1e2c3f8
Adapt code into the latest changes
isidentical Oct 1, 2020
0a04da8
Support double-stringified annotations in dataclasses
isidentical Oct 3, 2020
6d1feb5
Use get_type_hints in inspect.signature
isidentical Oct 4, 2020
86181e4
remove reduntant test
isidentical Oct 4, 2020
4276284
Add what's new entry
isidentical Oct 5, 2020
5ae4bd1
mention about inspect.signature
isidentical Oct 5, 2020
1e73aa7
Tweak what's new words
gvanrossum Oct 6, 2020
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@isidentical
isidentical committed Oct 5, 2020
commit 427628456aee18c67e24978494e715b8a7e0ef8f
13 changes: 13 additions & 0 deletions Doc/whatsnew/3.10.rst
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Expand Up @@ -70,6 +70,19 @@ Summary -- Release highlights
New Features
============

.. _whatsnew310-pep563:

PEP 563: Postponed Evaluation of Annotations Becomes Default
------------------------------------------------------------

In Python 3.7, postponed evaluation of annotations added, to be enabled with
``from __future__ import annotations`` directive. In 3.10 this became the
default behavior, even without that future directive. With this being default
all annotations stored in :attr:`__annotations__` will be strings. If needed,
annotations can be resolved at runtime using :func:`typing.get_type_hints`.
See :pep:`563` for a full description. (Contributed by Batuhan Taskaya in
:issue:`38605`.)

* The :class:`int` type has a new method :meth:`int.bit_count`, returning the
number of ones in the binary expansion of a given integer, also known
as the population count. (Contributed by Niklas Fiekas in :issue:`29882`.)
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