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PEP 563: Correct references to 3.10 default adoption (#2086)

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xochozomatli 2021-09-25 09:53:47 -06:00 committed by GitHub
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@ -25,7 +25,7 @@ This PEP proposes changing function annotations and variable annotations
so that they are no longer evaluated at function definition time.
Instead, they are preserved in ``__annotations__`` in string form.
This change is going to be introduced gradually, starting with a new
This change is being introduced gradually, starting with a
``__future__`` import in Python 3.7.
@ -45,6 +45,8 @@ hinting use case:
computationally free.
Postponing the evaluation of annotations solves both problems.
NOTE: PEP 649 proposes an alternative solution to the above issues,
putting this PEP in danger of being superceded.
Non-goals
---------
@ -85,7 +87,7 @@ aforementioned PEPs should be considered deprecated.
Implementation
==============
In Python 3.10, function and variable annotations will no longer be
With this PEP, function and variable annotations will no longer be
evaluated at definition time. Instead, a string form will be preserved
in the respective ``__annotations__`` dictionary. Static type checkers
will see no difference in behavior, whereas tools using annotations at
@ -283,9 +285,10 @@ Deprecation policy
Starting with Python 3.7, a ``__future__`` import is required to use the
described functionality. No warnings are raised.
In Python 3.10 this will become the default behavior. Use of annotations
incompatible with this PEP is no longer supported.
NOTE: Whether this will eventually become the default behavior is currently unclear
pending decision on PEP 649. In any case, use of annotations that depend upon
their eager evaluation is incompatible with both proposals and is no longer
supported.
Forward References
==================