> Hum, I'm not sure that my patch works if the locale encoding is not
> UTF-8: import.c manipulates path in the filesystem encoding, whereas
> PyTokenizer_FindEncodingFilename() expects UTF-8 filename.
Thanks to my work on #3080, the import machinery (and other functions using Python modules and filenames) manipulates filenames as Unicode, and so I don't have to care about the filename encoding anymore.
6e9dc970ac0e (of issue #10785) fixed the crash, 7b8d625eb6e4 added the filename into the SyntaxError.