Re: FW: [Numpy-discussion] typecodes in numarray

[Francesc A. <fa...@op...>]

A Dilluns 27 Gener 2003 20:52, Todd Miller va escriure:
> >
> >Oh!, I didn't know that. In such a case, I think it's worth to conside=
r
> > the possibility to define records as classes descendants from
> > metaclasses. But, of course, you have the ultimate decision.
>
> I don't know what you mean here.   Please spell it out a little more.

I was trying to mean that using something like :

class Small(IsRecord):
    field1 =3D defineType(CharType, 2, default=3D"", position=3D1)
    field2 =3D defineType(Int32, 1, position=3D2)
    field3 =3D Float64

as as container for recarray metadata is definitely possible instead of t=
he
tuple (formats=3D"2aid",names=3D("field1","field2", "field3")), if using
Python2.2. IsRecord is a metaclass (introduced in Python 2.2) that allows
you to effectively separate the declared attributes from the implicit one=
s
in normal classes.

Of course, you can taylor IsRecord so as to fulfill your needs.

I hope that I have expressed myself more clearly now,

--=20
Francesc Alted