Backport PR #12367 on branch 7.x (PR: Add handling for malformed pathext env var (Windows))#12368

Carreau merged 1 commit into

ipython:7.xipython/ipython:7.xfrom

meeseeksmachine:auto-backport-of-pr-12367-on-7.xmeeseeksmachine/ipython:auto-backport-of-pr-12367-on-7.xCopy head branch name to clipboard