new python syntax: concatenation of functions

[Sagiv Malihi]

what you would *really* like to do, is to be able to extend any class, and
override it's operators.
in your example, you would like to do something like:

def mul_funcs(self, other):
    def temp(*args, **kw):
        return self(other(*args, **kw))
    return temp

and then:
FunctionType.__mul__(self, other) = mul_funcs



"Daniel Dittmar" <daniel.dittmar at sap.com> wrote in message
news:c2pnju$2t4$1 at news1.wdf.sap-ag.de...
> Radovan Garabik wrote:
> > or, without leaving ascii:
> >
> > def (x)composition(y):
> >     return lambda par: x(y(par))
> > print (a composition b)(x)
>
> or without leaving Python
>
> class Composition:
>     def __init__ (self, outer, inner):
>         self.outer = outer
>         self.inner = inner
>
>     def __call__ (self, *args):
>         return self.outer (self.inner (*args))
>
>     def __str__ (self):
>         return '%s ° %s' % (self.outer, self.inner)
>
> Daniel
>
>
>