pyqgis - QGIS plugin: Problems importing resources (resources_rc) file - plugin doesn't load - PATH problems?

I'm building qgis plugin and I can't find solution for this error.

File "/usr/lib/python2.7/dist-packages/qgis/utils.py", line 478, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
ImportError: No module named resources_napoved_rc

For everybody that will be asking I've built python resources file:

pyrcc4 -o resources_napoved_rc.py resources_napoved.qrc

I still can't find a way to make it work. I always get same error.

On top of the script I have:

import resources_napoved_rc.py

I'm using ui file directly from qtbuilder. Any ideas how to go forward ? I'm assuming this must be some kind of path problem or something similar.