bpo-42133: update parts of the stdlib to fall back to `__spec__.loader` when `__loader__` is missing (#22929)

1 files changed, 24 insertions, 0 deletions

diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index 1e6c7c4..a735bf2 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -186,6 +186,12 @@ by :func:`curses.color_content`, :func:`curses.init_color`,
 support is provided by the underlying ncurses library.
 (Contributed by Jeffrey Kintscher and Hans Petter Jansson in :issue:`36982`.)
 
+doctest
+-------
+
+When a module does not define ``__loader__``, fall back to ``__spec__.loader``.
+(Contributed by Brett Cannon in :issue:`42133`.)
+
 encodings
 ---------
 :func:`encodings.normalize_encoding` now ignores non-ASCII characters.
@@ -198,6 +204,18 @@ Added the *root_dir* and *dir_fd* parameters in :func:`~glob.glob` and
 :func:`~glob.iglob` which allow to specify the root directory for searching.
 (Contributed by Serhiy Storchaka in :issue:`38144`.)
 
+inspect
+-------
+
+When a module does not define ``__loader__``, fall back to ``__spec__.loader``.
+(Contributed by Brett Cannon in :issue:`42133`.)
+
+linecache
+---------
+
+When a module does not define ``__loader__``, fall back to ``__spec__.loader``.
+(Contributed by Brett Cannon in :issue:`42133`.)
+
 os
 --
 
@@ -217,6 +235,12 @@ The :mod:`shelve` module now uses :data:`pickle.DEFAULT_PROTOCOL` by default
 instead of :mod:`pickle` protocol ``3`` when creating shelves.
 (Contributed by Zackery Spytz in :issue:`34204`.)
 
+site
+----
+
+When a module does not define ``__loader__``, fall back to ``__spec__.loader``.
+(Contributed by Brett Cannon in :issue:`42133`.)
+
 sys
 ---