Hi, On an Ubuntu 18 system I would like to use multiple gnuradio+uhd instances in parallel (3.7 with python 2.7, 3.8 with python 3, and a variety of versions with patches applied, different UHD versions, RFnoc etc).
So far, I have multiple source trees and when I switch I completely delete /usr/local and do "sudo make install && sudo ldconfig" in the respective build directory. Clearly a bad solution. As far as I understand, pybombs should be a solution to that. But its usage is pretty confusing to me (difference between user wide config and a single prefix). Despite reading the the docs and playing around for many hours, I have not been able to successfully use 3.7 and 3.8 in parallel. My main issue is: https://github.com/gnuradio/pybombs just explains how to get a single prefix running at once (pybombs prefix init ~/{base_folder} -R {your_recipe}). However, I need to do this step by step (since each prefix has different modules, source code patches etc). For the beginning, suppose I'd just want to have the "maint" branch of each version (in following steps, I'd like to just copy prefix and make individual changes) $ sudo mv /usr/local /usr/local_OLD # just to make sure nothing interferes with systemwide stuff $ sudo pip3 install --upgrade git+https://github.com/gnuradio/pybombs.git $ pybombs prefix init ~/gr37 -R gnuradio-stable $ pybombs prefix init ~/gr38 -R gnuradio-default $ cd ~/gr37 $ pybombs -p . config --env python_ver 2.7 1.) Why do I explicitely need to add "-p" above? According to the manual, the prefix in the current directory should be taken when not supplied with "-p". But without "-p", it gets written into ~/.pybombs/config.yml 2.) Why is "Prefix python version" still set to 3.6.9? Why is PYTHONPATH wrong (*/python3.6/*)? $ cd ~/gr37 $ pybombs prefix env | grep -i python [INFO] Prefix Python version is: 3.6.9 [INFO] PyBOMBS Version 2.3.4a0 PYTHONPATH=/home/l/gr37/lib/python3.6/site-packages:/home/l/gr37/lib/python3.6/dist-packages:/home/l/gr37/lib64/python3.6/site-packages:/home/l/gr37/lib64/python3.6/dist-packages:$PYTHONPATH PYTHON_VER=2.7 3.) Now running gr 3.7 in that prefix does not work: $ cd ~/gr37 $ pybombs run gnuradio-companion [INFO] Prefix Python version is: 3.6.9 [INFO] PyBOMBS Version 2.3.4a0 and the error message "Cannot import gnuradio. Is the model path environment variable set correctly? All OS: PYTHONPATH Is the library path environment variable set correctly? Linux: LD_LIBRARY_PATH Windows: PATH MacOSX: DYLD_LIBRARY_PATH (No module named gnuradio)" 4.) Also gr 3.8 does not work: $ cd ~/gr38 pybombs run -- gnuradio-companion [INFO] Prefix Python version is: 3.6.9 [INFO] PyBOMBS Version 2.3.4a0 and then I get the same error message as above ("Cannot import gnuradio") 5.) I think setup-env.sh is wrong. Which command generates this and how can this file be regenetated with correct settings for each prefix (like python version and library paths)? 6.) How do I modify each prefix? For example, how to I switch the source to a specific branch or tag in uhd or gnuradio? How do I add my custom OOT module? 7.) How do I update a prefix? For example, if I want to modify gnuradio or uhd source, where do I edit the files (I assume $prefix/src ?) and how do I recompile/reinstall? 8.) When playing around I found that the following two commands sometimes have different behavior (according to the manual, they should be identical but the first one does not work): $ cd ~/gr37 $ pybombs run gnuradio-compantion vs $ cd ~/gr37 $ source setup-end.sh $ gnuradio-companion Are they supposed to be identical? If yes, why could they give different results? If not, what is the difference? 9.) How do I list installed packages in a prefix? (I think I can remove them with "pybombs remove package", rebuild with "pybombs rebuild package" ?) Sorry this is really confusing to me so I hope you could shed some light how this is supposed to be used. Thanks! Lukas
