I agree with Victor on this. In the future, I'd really like to see us do our best to add cross-platform uniformity to Python's strftime and strptime support. If there really is a platform out there that doesn't support a trailing `%`, I like the idea of stripping it off before passing it to the system strftime/wcstrftime.

That said, I don't think this should be a blocker on Michael's PR. I think that his contribution by itself improves on the current state of things and there's no pressing *need* to solve them both at the same time. Unless I'm misunderstanding, I think the existing PR is a prerequisite for solving the problem on all platforms anyway.

Michael - do you think you can / would you like to add the functionality that Victor mentioned to your existing PR? If not, I recommend we merge the current PR and open a new issue for "Lone trailing % not supported on all platforms".