[Python-Dev] PEP 414 - Unicode Literals for Python 3 (original) (raw)

Steven D'Aprano steve at pearwood.info
Tue Feb 28 00:54:24 CET 2012

Armin Ronacher wrote:

Hi,

On 2/27/12 4:44 PM, martin at v.loewis.de wrote: Maybe I'm missing something, but there doesn't seem to be a benchmark that measures the 2to3 performance, supporting the claim that it runs "two orders of magnitude" slower (which I'd interpret as a factor of 100). My Jinja2+Werkzeug's testsuite combined takes 2 seconds to run (Werkzeug actually takes 3 because it pauses for two seconds in a cache expiration test). 2to3 takes 45 seconds to run. And those are small code bases (15K lines combined). It's not exactly two orders of magnitude so I will probably change the writing to "just" 20 times slower but it illustrates the point.

That would be one order of magnitude.

-- Steven

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