Bazaar: Out of memory

Stefan Monnier monnier at
Fri May 9 16:02:05 BST 2008

> The .join() method is faster because it does less memory allocations
> and copies than the for loop you list above.  It should allocate a
> single string for the final concatenated string.  In contrast, the for
> loop version does a string allocation and copy for every iteration (so
> in the final iteration you'd expect it to have allocated roughly twice
> the memory).

The amount of copying and allocation is not just double but O(N^2)
(basically N+(N-1)+(N-2)+...).


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