Bo Peng wrote:
Dear list,
I am writing a Python extension module that needs a way to expose pieces
of a big C array to python. Currently, I [use] NumPy.... Users ... actually
> change the underlying C array.
Python's array module is built-in, easy to use, but *without* a
FromLenAndData function!
Python's array module is not built to do this well. It can re-size the
array, delete elements inside the array, and other things that don't
work very well with C-managed data. I wrote "blocks and views" to
overcome this problem. A "View" of data can be pointed at data, and
the "view" behaves much like a Python array (except that you cannot
affect the array's size). You can even take "slices" of the view,
which will produce a new view referring to the same base memory. There
are two kinds of views available, read-only views and writable views.
Have a look at:
http://members.dsl-only.net/~daniels/Block.html
to see if it addresses your problem. It is MIT-licensed (give credit,
but feel free to use). Let me know if it works OK, could use a tweak,
or is completely useless. I'll be more than happy to respond to
questions.
--Scott David Daniels
[EMAIL PROTECTED]
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