Hello,
The gru module was removed in gnuradio 3.9 and 3.10, TP-kit can't longer run.
The demod.py breaks.. (it misses some filters definitions ).

. For some more info see:

https://github.com/gnuradio/gnuradio/issues/1591
https://github.com/gnuradio/gnuradio/pull/3815
https://github.com/gnuradio/gnuradio/pull/3936

My knowledges skill is lo low to now what I can do .
Regards,
JPh