[Numpy-discussion] Creating and reshaping fortran order arrays
Travis Oliphant
oliphant.travis at ieee.org
Mon Aug 14 14:01:48 EDT 2006
Travis Oliphant wrote:
> However, you can use the ndarray creation function itself to do what you
> want:
>
> a = ndarray(shape=(2,2), dtype=int32, buffer=str, order='F')
>
> This will use the memory of the string as the new array memory.
>
Incidentally, the new array will be read-only. But, you can fix this in
two ways:
1) a.flags.writeable = True
--- This is a cheat that avoids the extra copy on pickle-load and
let's you use strings as writeable buffers. Don't abuse it. It will
disappear once Python 3k has a proper bytes type.
2) a = a.copy()
-Travis
More information about the NumPy-Discussion
mailing list