How can I verify that a passed argument is an interible collection?

[Fredrik Lundh]

Charles Krug wrote:

> I'm working on some methods that operate on (mathematical) vectors as
> in:
> 
> def Convolution(x, y)
> """Returns a list containing the convolution of vectors x and y"""
> 
> Is there any way to determine at runtime that x and y are iterible
> collections?
> 
> Do I *coughs* simply *coughs* trap the exception created by:
> 
>    for v in x:
> 
> when v is a scaler quantity?

why not leave trapping exceptions to whoever uses your function?

</F>