Array of objects in numpy.

[Pepijn Kenter]

Hi all.

I'm new to python and want to use it for an assignment.

I have succesfully implemented a galois field class including the _repr__,
__mul__, __div__, __add__ and __sub__ methods. Basically a galois field is
an integer modulo a prime number. Now I want to make a matrix of these
galois field objects using the numpy library. Constructing, printing and
multiplying arrays of GF's works fine. However there are several functions
that give problems, most importantly: dot, repeat. 

I'm affraid I've forgotten my memmory stick with the code and error
messages :-(, so I have to keep my question general. If I recall correctly,
the repeat function complained that my GF object didn't have the
__getelem__ method implemented (IMO this should not be necessary), the dot
function complained about an unsupported type. I know this is not the
preffered way of asking for help on usenet but I'd like some feedback so I
can work this weekend on the problem. I can use the dot & repeat with
normal numpy arrays of floats, so I'm sure it is not due to my inexperience
with python.

Does anybody have experience using object arrays in numpy? Should I be able
to get the dot & repeat function working, and what methods should my GF
object support? Or are there known problems and pitfalls?

Any help would be appreciated.

Regards, Pepijn Kenter.