pdb in uwsgi

Hi, I am trying to insert pdb.set_trace() in the file " https://opendev.org/openstack/placement/src/branch/master/placement/objects/..." for debugging purposes. But when I manually start the placement service using this command "/openstack/venvs/uwsgi-27.3.0-python3/bin/uwsgi --autoload --ini /etc/uwsgi/placement-api.ini --honour-stdin", it is running as normal but not giving the pdb prompt when launching a nova boot command elsewhere. Is this a uwsgi pdb bug ? Thanks Y.G