exec

[Peter Otten]

Prasad, Ramit wrote:

> Hi Peter,
> 
> >>> class Magnitude(object):
> 
> ...     def __init__(self, value):
> ...             self.value = value
> ...     def __call__(self, uf=1):
> ...             if uf == 1:
> ...                     return self
> ...             return self.value
> ...
> 
> >>> class Iron(object):
> 
> ...     def __init__(self):
> ...             self.rho = Magnitude(42)
> ...
> 
> 
> Why did you make uf=1 instead of None?
> 
> ...     def __call__(self, uf=None):
> ...             if uf is None:

That's a design decision of the OP. I suggested an improvement of the 
implementation and left the interface alone.