PEP 787, Safer subprocess usage using t-strings, is a newly proposed PEP that improves the safety of subprocess invocations in Python by building directly on the template strings features of PEP 750. I couldn’t be more excited to see it! The proposal is open for feedback.
(PS: This new proposal was written by the two authors of PEP 501, which fed directly into the development of PEP 750. Nick Humrich offers a good perspective on the history in his recent HN posts.)