Comment on #18704 Cant get started. Unable to export to single virtualenv & if I even should?? Discussion answered by p-baum I'm try to be too clever for my own good. A solution is to use the PYTHONPATH env variable (vscode settings "python.envFile") to include multiple paths:

PYTHONPATH=src/base1:src/base2:dist/export/python/virtualenvs/tools

after running

pants export --symlink-python-virtualenv

pantsbuild/pants