hi all,
I have a python list of unknown length, that sequentially grows up via
adding single elements.
Each element has same size in memory (numpy.array of shape 1 x N, N is
known from the very beginning).
As I have mentioned, I don't know final length of the list, but
usually I know a good
dmitrey:
As I have mentioned, I don't know final length of the list, but
usually I know a good approximation, for example 400.
There is no reserve()-like method, but this is a fast enough operation
you can do at the beginning:
l = [None] * 400
It may speed up your code, but the final resizing
Just write it in C and compile it into a file.so/pyd =)
2008/3/26, [EMAIL PROTECTED] [EMAIL PROTECTED]:
dmitrey:
As I have mentioned, I don't know final length of the list, but
usually I know a good approximation, for example 400.
There is no reserve()-like method, but this is a fast
dmitrey:
As I have mentioned, I don't know final length of the list, but
usually I know a good approximation, for example 400.
You may want to use collections.deque too, it doesn't produce a Python
list, but it's quite fast in appending (it's a linked list of small
arrays).
Bye,
bearophile
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