Problems for importing howto module referring to the gnuradi

Hello! We are two students who are trying to run the example
“how-to-write-a-block” on gnuradio.org. We have got some problems trying
to
run the gnuradio block because we don’t know how to build it. We have
tried
to run qa_howto.py thinking that this was the correct way to make
everything
working.When we have done it, we have got : ImportError : no module
named
howto. Have you got some clues? Which is the correct way to run this
gnuradio block? Thanks

Hi Luca,

Did you compile and install the block? If not, did you follow this
howto:
http://www.gnu.org/software/gnuradio/doc/howto-write-a-block.html

Cheers,

Thomas