When attempting to import any module that uses zope.interface.implements
in Python 3, a TypeError is raised; it reads:
TypeError: Class advice impossible in Python3. Use the @implementer
class decorator instead.
Following the listed advice seems to function in Python 3.
Change the print statements used into print functions.
The print satement is not valid in Python 3, however the print function
is valid in at least 2.6+.
Roy Wellington Ⅳ