Guppi has needs the python-version it was compiled with: | $ strings /usr/lib/libguppiuseful.so | egrep 'python|1.5.2' | ... | lib/python%s | 1.5.2 When using another python version, Guppi will fail to start: | Could not find platform independent libraries <prefix> | Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>] | 'import exceptions' failed; use -v for traceback | Warning! Falling back to string-based exceptions | 'import site' failed; use -v for traceback | Fatal Python error: couldn't import os Therefore, there should be an explicit 'Requires: python = <version>' where <version> is the used python-version. Without this it is very difficulty to determine why programs using guppi are failing (e.g. gnucash).
This will be fixed in Guppi-0.40.3-3, because in that version the python support got removed. ;)