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Hi,

Robin Becker <robin <at> reportlab.com> writes:
> 
> For fairly sensible reasons we changed the internal default to use unicode 
> rather than bytes. After doing all that and making the tests compatible
etc etc 
> I have a version which runs in both and passes all its tests. However, for 
> whatever reason the python 3.3 version runs slower
> 
> 2.7 Ran 223 tests in 66.578s
> 
> 3.3 Ran 223 tests in 75.703s

Running a test suite is a completely broken benchmarking methodology.
You should isolate workloads you are interested in and write a benchmark
simulating them.

Regards

Antoine.