easy_install of module produces un-importable result

[Val]

I've written my first module, "gpsparser" and uploaded it as an egg to
PyPI. I can use easy_istall to install my own module, but when I try
to import it I get an ImportError "No module named gpsparser".

So I've done some research and found that in my site-packages/
directory gpsparser exists as an egg file, while all the other
packages I've installed exist as an egg directory.

If this makes any sense, can anyone explain what I've done wrong in
building my package that the installation process does not unpack the
egg file?

Thanks,

Val