bpo-28556: Update the opening note in typing docs (GH-16204)

This PR replaces the old note mentioning that `typing` is a provisional module with a new one mentioning types are not enforced at runtime. I am not sure if there was any official announcement about making `typing` non-provisional, but _de-facto_ no new features were added during Python 3.7, and no backwards incompatible changes were made except for few small things that were considered bugs.
(cherry picked from commit 81528ba2e81c39f4d6bca5b785e818c7d08b8501)

Co-authored-by: Ivan Levkivskyi <levkivskyi@gmail.com>

diff --git a/Doc/library/typing.rst b/Doc/library/typing.rst
index 12efde1316570f32767a572d438ea34c2a01363c..f4d1b2404328dd131f5b7de27a89837bd0847437 100644 (file)
--- a/Doc/library/typing.rst
+++ b/Doc/library/typing.rst
@@ -10,10 +10,9 @@
 
 .. note::
 
-   The typing module has been included in the standard library on a
-   :term:`provisional basis <provisional api>`. New features might
-   be added and API may change even between minor releases if deemed
-   necessary by the core developers.
+   The Python runtime does not enforce function and variable type annotations.
+   They can be used by third party tools such as type checkers, IDEs, linters,
+   etc.
 
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