Skip to content

[3.11] typing.NewType docs: the future performance improvements are now in the past (GH-105354) #105415

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jun 7, 2023
Merged

[3.11] typing.NewType docs: the future performance improvements are now in the past (GH-105354) #105415

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 7 additions & 3 deletions Doc/library/typing.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -222,9 +222,13 @@ See :pep:`484` for more details.
.. versionadded:: 3.5.2

.. versionchanged:: 3.10
``NewType`` is now a class rather than a function. There is some additional
runtime cost when calling ``NewType`` over a regular function. However, this
cost will be reduced in 3.11.0.
``NewType`` is now a class rather than a function. As a result, there is
some additional runtime cost when calling ``NewType`` over a regular
function.

.. versionchanged:: 3.11
The performance of calling ``NewType`` has been restored to its level in
Python 3.9.


Callable
Expand Down