gh-86509: Add link to Lib/_threading_local.py in threading docs (GH-101824)

(cherry picked from commit 53dceb53ade15587b9cfd30c0a0942232517dee9)

Co-authored-by: Owain Davies <116417456+OTheDev@users.noreply.github.com>

diff --git a/Doc/library/threading.rst b/Doc/library/threading.rst
index ef140d75c43169ce548d91148b24d3aa8caf4f2c..65416221d9751bcd5d314a395dc94c0f6f338a32 100644 (file)
--- a/Doc/library/threading.rst
+++ b/Doc/library/threading.rst
@@ -254,7 +254,7 @@ The instance's values will be different for separate threads.
    A class that represents thread-local data.
 
    For more details and extensive examples, see the documentation string of the
-   :mod:`_threading_local` module.
+   :mod:`_threading_local` module: :source:`Lib/_threading_local.py`.
 
 
 .. _thread-objects: