Relative Import in stubs from GeneratedPy

[nlgio]

if PythonGenerate should generate relative imports, there must be a default package to avoid those "Attempted relative import with no known parent package" errors. The current setting is "MiddleKit.Tests.WorkDir" which fulfills the needs of the included test suite. As far as i see this could only be an issue when theres no package declaration, which is against the officially recommended way of using.