I have different local python installations that were built with hashdist. On the other hand, vim is installed system-wide (ArchLinux) referencing the system's python3.
I would like to use jedi's autocompletion for packages of one isolated python build. The modules lie in some/path/lib/python2.7/site-packages
which is not known to the system python (hence, vim). Also, vim was compiled for python3; that "other version" is python2.7.
Is there any way to do this? If I could just pick one specific package that would be fine, too. $PYTHONPATH doesn't work (at least) because of the conflicting python versions.