PyPDF and print restrictions

[Chris Curvey]

Has anyone out there been able to enforce print restrictions on a PDF
document by using PyPDF? The documentation for "encrypt" states:

 # @param user_pwd The "user password", which allows for opening and
reading
 # the PDF file with the restrictions provided.

But there is no parameter for providing a restriction, and I can't
find a reference to any kind of restriction besides this comment in
the docs.

Thanks in advance!