Memory pre-allocation for large lists

Josiah Carlson jcarlson at nospam.uci.edu
Wed Feb 18 08:21:45 CET 2004


> Can, yes.  But why?  Python uses an allocation mechanism for lists that
> results in constant amortized time; there's really no reason to
> pre-allocate.

It is a bit faster to pre-allocate, and sometimes you know how big the 
sequence is going to be beforehand.

  - Josiah



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