bpo-43817: Add inspect.get_annotations(). (#25522)

Add inspect.get_annotations, which safely computes the annotations defined on an object.  It works around the quirks of accessing the annotations from various types of objects, and makes very few assumptions about the object passed in. inspect.get_annotations can also correctly un-stringize stringized annotations.

inspect.signature, inspect.from_callable, and inspect.from_function now call inspect.get_annotations to retrieve annotations.  This means inspect.signature and inspect.from_callable can now un-stringize stringized annotations, too.

1 files changed, 11 insertions, 0 deletions

diff --git a/Misc/NEWS.d/next/Library/2021-04-22-04-12-13.bpo-43817.FQ-XlH.rst b/Misc/NEWS.d/next/Library/2021-04-22-04-12-13.bpo-43817.FQ-XlH.rst
new file mode 100644
index 0000000..36a6018
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2021-04-22-04-12-13.bpo-43817.FQ-XlH.rst
@@ -0,0 +1,11 @@
+Add :func:`inspect.get_annotations`, which safely computes the annotations
+defined on an object.  It works around the quirks of accessing the
+annotations from various types of objects, and makes very few assumptions
+about the object passed in. :func:`inspect.get_annotations` can also
+correctly un-stringize stringized annotations.
+
+:func:`inspect.signature`, :func:`inspect.from_callable`, and
+:func:`inspect.from_function` now call :func:`inspect.get_annotations`
+to retrieve annotations.  This means :func:`inspect.signature`
+and :func:`inspect.from_callable` can now un-stringize stringized
+annotations, too.