Re: [Discuss-gnuradio] RunTime error in runtime_swig.py

[Sonny Rajagopalan]

Thanks, Kevin!

I think that was the issue. I had, in my early days of learning about SDR, installed another version of gnuradio. Also, I was not calling the pybombs-installed gnuradio correctly. Instead of 

$ pybombs run gnuradio-companion

I was calling it like so:

$ gnuradio-companion

That is another error.

I have everything working as expected now (i.e., got the OP flowgraph (and more)) working.

I uninstalled all gnuradio-* components (sudo apt-get remove --purge libgnuradio*, and maybe more; try apt list --installed  | grep gnuradio) installed by Ubuntu's apt-get and then, using pybombs (see https://github.com/gnuradio/pybombs), rebuilt gnuradio and added the necessary recipes.

So, here's what I did:

$ apt list --installed  | grep gnuradio

$ sudo apt-get remove --purge libgnuradio* # again, do the above and this line for everything else you may have installed using apt-get, e.g., rtl-sdr, osmosdr etc.

$ pybombs -vv rebuild gnuradio

$ pybombs recipes add gr-recipes git+https://github.com/gnuradio/gr-recipes.git # may not be needed, but redid anyway.

$ pybombs recipes add gr-etcetera git+https://github.com/gnuradio/gr-etcetera.git # may not be needed, but redid anyway.

$ pybombs install gr-osmosdr

Marcus, thanks for your on the matter! I hope this helps someone.

On Mon, Jan 30, 2017 at 7:50 PM, Kevin Reid <address@hidden> wrote:

On Mon, Jan 30, 2017 at 11:12 AM, Sonny Rajagopalan <address@hidden> wrote:

RuntimeError: list contains invalid format!

 

FWIW, I've seen this error before, and if I remember correctly it's a symptom of multiple versions installed (such that the GR Python code is not the same version as the GR native code).