Any way to program custom syntax to python prompt? >> I want to edit matrices.

[Ramsey Nasser]

On 11 Dec 2007 04:14:09 GMT, Stargaming <stargaming at gmail.com> wrote:
> On Mon, 10 Dec 2007 16:54:08 -0800, mosi wrote:
>
> > Python matrices are usually defined with numpy scipy array or similar.
> > e.g.
> >>>> matrix1 = [[1, 2], [3, 4], [5, 6]]
> > I would like to have easier way of defining matrices, for example:
> >>>> matrix = [1, 2; 3, 4; 5, 6]
> >
> >>>> matrix =
> > [ 1, 2;
> >   3, 4;
> >   5, 6;]
> >
> > Any ideas how could this be done? The ";" sign is reserved, the "[ ]" is
> > used for lists.

I think mosi was looking to dynamically modify the syntax of Python
itself, as opposed to working around the existing syntax. This
includes things like messing with reserved symbols and keywords.

The interpreter is compiled with these definitions built in, so to
change them would conceivably require a recompile. If this is the
case, then mosi may be out of luck.  Then again, people have done some
interesting dynamic modifications to the interpreter during runtime
without recompiling. Psyco is the best example of this that comes to
mind. Maybe someone more versed in Psyco-esque interpreter voodoo
would be able to help.

-- 
nasser