Found some history: https://vstinner.github.io/python30-listdir-undecodable-filenames.html https://vstinner.github.io/python30-listdir-undecodable-file... Incl

Found some history: https://vstinner.github.io/python30-listdir-undecodable-filenames.html https://vstinner.github.io/python30-listdir-undecodable-file... Includes "Modify os.listdir(str) to ignore silently undecodable filenames, instead of returning them as bytes", but not later work where apparently this was changed to use surrogates.