[Cython] Cython syntax to pre-allocate lists for performance

Robert Bradshaw robertwb at gmail.com
Fri Mar 8 00:41:54 CET 2013

On Thu, Mar 7, 2013 at 3:19 PM, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
> Nikita Nemkin wrote:
>> Sorry, accidental early send. Previous mail continued...
>> [None] * N makes an extra pass over the list to assign None to each item
>> (and also incref None n times).
> Maybe this could be optimised by adding N to the reference
> count instead of incrementing it N times?

I'd be surprised if the C compiler doesn't.


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