I have a laptop computer with a fresh installation of Ubuntu desktop 21.04. I add the ppa and installed gnuradio; I got version 3.9.2.0 (Python 3.9.5). It runs fine from the GUI and the Terminal. Then I built a custom OOT block that I had written a year ago called Stream.Select - I can build it and install it and it shows up on the list of blocks, but at runtime it says: ModuleNotFoundError: No module named 'stream'
Various pages suggest the problem may be related to PYTHONPATH and/or LDLIBRARY environment variables. I tried to locate those with the following sequence: gavin@RFSERVER04:~$ gnuradio-config-info --prefix /. gavin@RFSERVER04:~$ printenv PYTHONPATH gavin@RFSERVER04:~$ printenv LDLIBRARY gavin@RFSERVER04:~$ The output of the prefix is the root, which looks suspicious to me; and the output of the two printenv commands is nothing, also suspicious. Am I on the right track? Should the install of the binary package setup the prefix/PYTHONPATH/LDLIBRARY environment variables? What should the environment variables be? Thanks, Gavin
