Python 3 Changes

• Exception statements upgraded to use “as” syntax
• print is now a function call
• Use != instead of <>
• One instance of intern() changed to import sys & sys.intern
• Any code determining whether a string was str or unicodes simplified to know it is always unicode
• Fix references of Python 3 renamed dict.iteritems -> dict.items
• Fix reference to basestring to str (update to python 3)
• Fix xrange to range (Python 3 update)
• In some cases ‘isinstance’ was not working for Button objects. Added additional test for ‘iterable’
• The method .add in vectors returns a map; Seems like in Python 3 this is not auto-converted to a tuple/list
• Some updates to Shell and the root widget to accept the attribute keyword pairs in order to influence background color, foreground color, etc
• Remove “object” classing; depend on 3.x implicit
• Remove future references