[Numpy-discussion] finding close together points.

Christopher Barker Chris.Barker@noaa....
Thu Nov 12 19:13:41 CST 2009


Charles R Harris wrote:
> So what you buy 
> with an array implementation is the space/time efficiency of not having 
> to allocate python types to put on the list. But you probably need to go 
> through a python type at some point anyway,

When writing Python, yes (though maybe not if you are appending a lot of 
data at once from a numpy array). That's whey my python implementation 
is slower, and I suspect a C implementation would be similar in 
performance to a list.

But if you are writing a C extension in C or Cython, then you could get 
a real gain by not having to go through Python types.

-Chris



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Christopher Barker, Ph.D.
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