Version 4.5.2 of mod_wsgi can be obtained from:
https://codeload.github.com/GrahamDumpleton/mod_wsgi/tar.gz/4.5.2
When using --debug-mode with mod_wsgi-express any additional directories to search for Python modules, which were supplied by the --python-path option, were not being added to sys.path.
--debug-mode
mod_wsgi-express
--python-path
sys.path