Hi The following is copied and pasted from https://github.com/python/peps/pull/1650 Stefano Borini =========== Commit message: PEP 637 I've asked Jonathan Fine to resign as PEP author, and he's agreed to do so. Details in the pull request Pull request comment: Hi Jonathan Thank you for accepting my invitation to be a co-author of PEP 637. I regret that because of disagreeing direction for the PEP I think it best for the community that I ask you to resign as co-author. Thank you for your help === Jonathan Fine =========== Hi Stefano I'm sorry things didn't work out, the way either of us wanted. Yes, there were disagreements! Particularly on python-ideas, involving also PEP sponsor Steve D'Aprano. I'd like the PEP to be improved before it is submitted. Jonathan === with best regards Jonathan