Comment 5 for bug 1372250

Ok, and the issue with pip install -e . is that no pth file is created (and addly the prior pth of the installed oslo.db is still present).

So it seems we have the following options:
 - teach pip install -e . to make a pth file [will help everyone developing setuptools namespace packages ?] and tell our devs to use that mode for running tests
 - after interpreter initialization alter the oslo module path - would probably require some directory-local metadata as the local code just isn't hit at all
 - stop using namespace packages (PEP 382 was rejected after all)
 - ???