Message10267

After searching for more information, I found closed issue #2333 which was fixed by setting JAVA_HOME as described in #2346. I was surprised because #2346 is about badly set environment variables and I didn't have any JAVA* related environment variables set at all. I tried setting JAVA_HOME but that didn't help.

I also found open issue #2350 with a workaround to run `jython -m ensurepip` after installation. That didn't work for me either. I got the same traceback as I got when installing Jython itself.