module name not recognized

[Darren Dale]

I have built two basic modules using distutils. One of them installs fine,
but the other, I can't import modules from it. I've been pouring over the
code and I cant find the problem. 

I know the file has been copied to site-packages/mypackage, but I cant do

from mypackage import mymodule

Could I get suggestions as to why a module would be installed but not
registered?

Thanks,
Darren