Stef Mientki wrote:
> I've a program where you can connect snippets of code (which I call a
> "Brick") together to create a program.
> To make it easier to create these code snippets, I need some
> simplifications.
> For simple parameters ( integer, tupple, list etc) this works ok,
> and is done like this:
>
>
> class _Simple_Par ( object ) :
> """
> Class to make it more easy to set a Bricks.Par from a control.
> So instead of :
> self.Brick.Par [ self.EP[0] ] = Some_Value
> you can write
> self.P[0] = Some_Value
> """
> def __init__ ( self, control ) :
> self.Control = control
> def __setitem__ ( self, index, value ) :
> i = self.Control.EP [ index ]
> if i :
> self.Control.Brick.Par [ i ] = value
>
> Now I want a similar simplification for the case that Par is a dictionary:
> So instead of writing:
> self.Brick.Par [ self.EP[0] ] [ 'Filename' ] = Some_Value
>
> I would like to write:
> self.P[0] [ 'Filename' ] = Some_Value
>
> But I can't figure out how to accomplish that ?
>
> Any suggestions ?
Are you about to confuse your cat, too? Here's the modified example:
class Brick(object):
def __init__(self):
self.Par = [dict(a=1), dict(b=2), dict(c=3)]
class P(object):
def __init__(self, parent):
self.parent = parent
def __getitem__(self, index):
p = self.parent
return p.Brick.Par[p.EP[index]]
class A(object):
def __init__(self):
self.Brick = Brick()
self.EP = [2,1,0]
self.P = P(self)
def demo(self):
print "before:", self.Brick.Par
self.P[0]["yadda"] = "whatever"
print "after:", self.Brick.Par
a = A()
a.demo()
Peter
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