Hi idrey, Welcome to GNU Radio!
On 07/12/2021 08.52, idrey wrote: > So I added 'export > PYTHONPATH=/usr/local/lib/python3/dist-packages:$PATHONPATH' to > .bashrc. Luckily, I can import OOT module and execute the flow graph in > terminal using 'python3 flow_graph.py' but in GRC it still not works and > prints the same error message. Add the above export to "~/.profile" (instead of "~/.bashrc") and then either logout/login or reboot. Regards, Vasil