STINNER Victor added the comment:
(Oops, I attached the wrong patch, fixed in patch v2.)
Quick & dirty micro-benchmark:
Original:
$ ./python -m timeit -s 'lst=list("hello")' 'lst[2]'
10000000 loops, best of 3: 0.0261 usec per loop
Patched:
$ ./python -m timeit -s 'lst=list("hello")' 'lst[2]'
10000000 loops, best of 3: 0.0186 usec per loop
----------
Added file: http://bugs.python.org/file41834/binary_subscr-2.patch
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<http://bugs.python.org/issue26301>
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