I just pushed and the example now has user code. If you run it locally with

tox -epy37 -- -vvsk test_issues_789_demo

the presence of user code is made obvious by colors for isort: https://github.com/jsirois/pex/pull/1/files#diff-b5b57c9d4fc663f59ecaedb851c13bd8

wow, i haven’t seen this coloring technique used before for this purpose