dbapi: try to restore compatibility of the connect api with 3.15 A few issues here: - urlparse('foo').scheme is '', not None - cnxprops is an optional argument Regression from 62213a34726e ("[db-api/configuration] simplify db-api and configuration so that all the connection information is in the repository url, closes #2521848") Closes #2754322

#!/usr/bin/env python
from cubicweb.cwctl import run
import sys
run(sys.argv[1:])