pyinstaller/pyinstaller — comment on commit 3482ea7a493de9a3a378fd608428cad8c8c3e618
File: PyInstaller/depend/modules.py line 136
By rasky:

@Martin: no, I mean that also PYZOwner should get back.

@Hartmut: the problem is that we have no control over zipimport; for instance, it doesn't work if the zip file is embedded into a PKG appended to an executable, like we create in one-file.