Serhiy Storchaka added the comment:
Sorry, it was incorrect microbenchmark. Correct is:
$ ./python -m timeit -r 11 -s "from collections import namedtuple as n;a =
n('n', 'a b c')(1, 2, 3)" -- "a.a"
3.4 : 1000000 loops, best of 11: 0.601 usec per loop
3.5 unpatched: 1000000 loops, best of 11: 0.445 usec per loop
3.5 patched : 1000000 loops, best of 11: 0.454 usec per loop
There is small slowdown (2%), but it is only small part of the gain of the
optimization.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue24276>
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