> I can sympathize with the desire to accept the zipfile, anyway (i.e. despite it being broken). At the same time, I also think that Python should not let errors pass silently.

I do not know other implementation of ZIP, which output an error or a
warning on such files. The fact is that such files exist in the wild
world.

> So as a way out, I propose that the ZipFile class gains a "strict" attribute, indicating whether "acceptable" violations of the spec are ignored or reported as exceptions.

It is a not easy task (and unnecessary, I suppose). Now zipfile ignores
many errors (for example, it completely ignores local file headers).