On Fri, Feb 4, 2011 at 8:01 AM, brett.cannon wrote:

+Capturing the Currently Raised Exception +---------------------------------------- +One change between Python 2 and 3 that will require changing how you code is +accessing the currently raised exception.  In Python 2 the syntax to access the +current exception is:: + +    try: +        raise Exception() +    except Exception, exc: +        # Current exception is 'exc' +        pass + +This syntax changed in Python 3 to:: + +    try: +        raise Exception() +    except Exception as exc: +        # Current exception is 'exc' +        pass

Note that you can write it the Python 3 way in 2.6+ as well (this was new syntax, so there weren't any backwards compatibility issues with adding it). You only need to do the sys.exc_info dance if you need to support 2.5 or earlier. Other notes: - explicit relative imports work in 2.6+ without needing a future import - absolute imports are the default in 2.7 Cheers, Nick. -- Nick Coghlan   |   ncoghlan@gmail.com   |   Brisbane, Australia