@akrieger thanks for the effort here. Much more is required however. In short, Pex does not support Windows yet. There is more recent commentary here: #259 (comment) but one very broken thing is file locking which Pex relies on in its cache handling. That is currently Posix-only. There are many other issues though, including handling venv .exe console script wrappers and more.

My basic stance is that I need green CI on a platform to support that platform. We don't have CI setup for Windows yet. I put a fair chunk of effort towards this in https://github.com/jsirois/pex/tree/Windows/wip ~2 years ago. I'm picking that up again, but you'll truly know when Pex supports Windows by looking here in the "Operating System" section: https://pypi.org/project/pex/ (or here:

Well, I wrote this because it fixed an issue we were having and I wanted to make sure no one else it hit too. When the project is ready to merge this, it'll be available.

Thanks. I'll make sure to include this in the initial Windows support release.

Well, I wrote this because it fixed an issue we were having and I wanted to make sure no one else it hit too.

The thing is, no one at all should be using Pex on Windows right now. I can't support it sanely without (green) CI or a Windows-using prospective Pex user providing that green CI baseline.

It seems like there is some work around Windows builds recently :)

It seems like there is some work around Windows builds recently :)

There has been, but man is it painful. The filesystem differences from Posix are brutal to come to grips with when your app really uses the filesystem, like Pex does.