Python 3 support
It would be great to have support for Python3. For obvious reason Python 3 is the way to go in the future, and more and more organizations and people are moving towards it. As a backwards compatibility to Python 2.6/2.7 is good, this would ensure that all the current major versions would be supported, not to mention the future Python version.
Obviously I also have a personal agenda, as our organization has moved to Python 3 and would definitely want to use and help to improve savReaderWriter.