No one wants to work on zipimport, and yet it's full of bugs. It needs a rewrite so that it's more maintainable. An idea floated at PyCon 2015 was to writing the zip-reading code in C and to keep it as simple as possible -- e.g., don't worry about supporting comments, etc. -- and then write the rest of the code in importlib, making maintenance much easier.

All of the various zipimport bugs should be made dependent on this issue as unless they are critical flaws I doubt they will get fixed without the rewrite.