Bug#935175: ITP #935175: python-pypdf4 -- PDF manipulation library

[Drew Parsons <dparsons@debian.org>]

Control: affects 935175 src:xhtml2pdf

The PyPDF4 project at https://github.com/claird/PyPDF4 appears to have 
stalled.

PyPDF3 seem to be more actively maintained, 
https://github.com/sfneal/PyPDF3

If you proceed with this ITP then it might work better as packaging for 
PyPDF3 rather than PyPDF4

Latest versions of xhtml2pdf have switched to PyPDF3 (from PyPDF2).

Drew