I encountered a problem on all 3.0.0 versions. I have a small exe written in C# that opens up a python process and then puts it to execute python modules.

On one od the modules I have import clr. When it imports that module I get Fatal Python error:take_gil: NULL tstate and then python crashes and also the main thread from my program.

This is not happening on 2.5.2 release but with that i have other problems since is not for py39

If I open python 39 and do the import clr it works. Is only happening when the import is done from a subprocess.

I just thought this can be a good info for you guys. Keep in touch.