Sessions at PyCon US 2012 about WSGI and Python 3 and Python and CherryPy

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Saturday 10th March 2012

  • How CherryPy supports Python 2 and 3

    by Robert Brewer

    CherryPy was the first web framework to be made available for use with Python 3, and we tried several approaches to support both Python 2 and 3 before settling on one. Learn about the ups and the downs of each approach, and ways you can make your own porting project easier.

    The CherryPy project was the first web framework to support Python 3. At the same time, we needed to continue to support and improve the Python 2 implementation. It's taken plenty of time and lots of experimentation to find out the best way. We will explore four different ways to support both Python 2 and 3, commenting on the pros and cons of each.

    Python 3 change highlights
    Special concerns for I/O, including WSGI
    Approach 1: 2to3
    Approach 2: separate branches
    Approach 3: setup.py switch
    Approach 4: compatibility layer

    At 4:55pm to 5:30pm, Saturday 10th March

    In E3, Santa Clara Convention Center

    Coverage video