I hope pex questions are OK here as well.. Looking into the scripts issue, just to get my feet wet, but I get a bunch of errors when running the integration tests. I’ve reported one of them, as I could deduce what was going on with it. The others might just as well be my environment. So, are there any known tricks one must apply to run the pex tests on a Mac? (e.g. seems to have issues compiling for zlib, was one of them..)

Yes, totally valid here! I hasn't tried running those tests recently so am not sure, but can try tomorrow if helpful. John doesn't have a Mac so wouldn't be Yelp here Do you have access to Linux (eg devbox) to see if it's a macos issue?

yeah, I could try this on one of our test servers..