packaging: Add the project directory to sys.path to support local setup hooks.
Original patch by Vinay Sajip on #11637.
diff --git a/Misc/NEWS b/Misc/NEWS
index c05a32a..89eab0e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -193,7 +193,10 @@
Library
-------
-- Issue #6771: moved the curses.wrapper function from the single-function
+- Issue #11637: Fix support for importing packaging setup hooks from the
+ project directory.
+
+- Issue #6771: Moved the curses.wrapper function from the single-function
wrapper module into __init__, eliminating the module. Since __init__ was
already importing the function to curses.wrapper, there is no API change.