[Discuss-gnuradio] Installing GNURadio On Raspberry Pi

First time posting.
I'm not much of a Linux guy but I am trying to learn.
Anyway, is there a "right way" to install GNURadio on a Raspberry Pi?

I have been trying a lot of methods over the last few weeks and none of them is stable.
Note, I have been using GRC on Windows for months so I have some feel for how things work.

After my latest installation, when I run a flow graph that includes the block for an rtlsdr dongle I get:

ImportError: No module named _osmosdr_swig.

I have a whole lot of Traceback reports but I can't make anything out of them (Python inexperience is a major problem for me).

This error seems pretty common but none of the steps others used to solve it have worked for me.
Most of them involve a lot of uninstalls and reinstalls and then "poof" it works.

Can anyone point me in the right direction?

Thanks In Advance,

Pete