exposing C array to python namespace: NumPy and array module.
craig at postnewspapers.com.au
Sat Jan 1 13:00:48 EST 2005
On Sat, 2005-01-01 at 10:27 -0600, Bo Peng wrote:
> Sorry if I was not clear enough. I was talking about the differece
> between python array module
> (http://docs.python.org/lib/module-array.html, Modules/arraymodule.c in
> the source tree) and NumPy array. They both use C-style memory block
> arrangement for efficient memory access. While NumPy has both, the array
> module is designed to be used purely in Python so there is no header
> file and no function to build an array from a pointer.
Thanks for clarifying that - I had misunderstood your reference to
I guess the core language doesn't have an array type, but as there's a
standard lib module that does (I'd forgotten it was there), it hardly
It would seem sensible to extend that module with a C API for mapping an
existing array. That would be a rather handy thing to have in the
> One of the methods you suggested (creating a new type) already
> implemented in arraymodule.c. I am not sure if it is appropriate to add
> the file into my project and add a 'CreateFromLenAndBuf' function.
That sounds like a reasonable approach to me, but I'm hardly an expert.
The code's license permits you to do so, and it's hardly worth repeating
the work if you don't have to.
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