[devtools] write db config through a temporary file
Avoids other test processes reading partially written config and
exploding in pickle.loads. There are still concurrency issues,
presumably with the database itself. Something for another friday.
from os.path import join
assert __file__.endswith(join('scripts', 'script2.py')), __file__
assert '__main__' == __name__, __name__
assert ['-v'] == __args__, __args__