ImportError: no module named howto

I am a new developper and i have a school project on gnu-radio library
My goal is to make and reverse-engineering on Gnu-Radio library due to
aim of meta modeling and code generation.
First i have downloaded the last version of gnuradio and retrived it on
my computer.
i have succefull built and executed some of gnuradio example from
package (gnuradio/gnuradio-example/python/audio) and now i have deceded
to write my block.
but before do it, i first try to execute the giving example
from the package gr-howto-write-a-block/src/python and i got this
Traceback (most recent call test):
File “”, line 24, in
  import howto
ImportError: no module named howto
could someone what i will do to solve this problem?
thank for your help

On Fri, Jan 29, 2010 at 04:21:58PM +0000, patrick mekeze wrote:

ImportError: no module named howto

could someone what i will do to solve this problem?
thank for your help

The only way to run is by running “make check” from the
top directory of gr-howto-write-a-block. It sets up a bunch of
environment variables required to run the QA code without it being


Hi Patrick,

You don’t say what os or even platform you are using but it sounds like
didn’t do a “sudo make install” on the howto stuff.

Or if you did, possibly you installed on ubuntu and the binaries went to
/usr/lib but your howto install went to /usr/local/lib.

unfortunately you don’t really give enough information to answer your
question, I don’t think. :slight_smile: