Joe Jevnik added the comment:
I was unable to see a performance increase by playing with the
itemgetter.__call__ code; however, updating the propery code seemed to show a
small improvement. I think that for simple indexing the cost of checking if it
is a sequence outways the faster dispatch (when using PySequence_GetItem). I
can play with this further.
* default
[joejev@Sheila cpython]$ ./python -m timeit -s "from collections import
namedtuple as n;a = n('n', 'a b c')(1, 2, 3)" "a.a"
10000000 loops, best of 3: 0.101 usec per loop
* patch
[joejev@Sheila cpython]$ ./python -m timeit -s "from collections import
namedtuple as n;a = n('n', 'a b c')(1, 2, 3)" "a.a"
10000000 loops, best of 3: 0.0942 usec per loop
----------
Added file: http://bugs.python.org/file39210/property.patch
_______________________________________
Python tracker <[email protected]>
<http://bugs.python.org/issue23910>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
