Type Error

[benwiggy]

If I run this with a PDF containing images, I get:

 line 102, in myOperator_Do
    res, name = CGPDFScannerPopName(s, None)
TypeError: 'bool' object is not iterable

If the PDF has no images, I get a loads of things like:
Python[66207:2479700] PyObjCPointer created: at 0x7fb87cb3b940 of type {CGPDFOperatorTable=}
and then the python process crashes!

There are a few different versions of this code on the Apple open source site, and none of them work!