bearophileHUGS at lycos.com bearophileHUGS at lycos.com
Tue Dec 23 14:51:15 EST 2008

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They have translated the Python benchmarks of the Shootout site from
Py2 to Py3 using 2to3:

http://shootout.alioth.debian.org/u32/benchmark.php?test=all&lang=python3

It shows some "performance bugs" of Python3 itself (especially
regarding the binary-trees benchmark, that was unexpected by me), and
two points where 2to3 may be improved, for example after the
translation this gives error:
         table=string.maketrans('ACBDGHK\nMNSRUTWVYacbdghkmnsrutwvy',
                                'TGVHCDM
\nKNSYAAWBRTGVHCDMKNSYAAWBR')):

Gives:
TypeError: maketrans arguments must be bytes objects

Bye,
bearophile

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