Strong/weak typing

[Mel]

Jorgen Grahn wrote:

> I reuse names though, mostly because I don't want to invent additional
> names which would feel "overburdened".  I like this example better:
> 
>    months = range(1, 13)
>    # do something with the months-as-numbers list,
>    # and then:
>    months = [ monthname(x) for x in months ]
>    # do something where we only need the names
> 
> Your comment "something that follows the evolution of the data"
> applies here.  It's the same data, but refined to a more usable form.
[ ... ]
> I only do this very locally, like in a simple function.

Yes.  That example looks particularly good.

Somebody emailed me privately with a poster-child for this technique, which,
now that I've been reminded, I *do* use ("locally" applies strongly here):

def f(a):
    a = int (a)
    # ...

or, in a slightly different context:

class ThisClass (object):
    # ...
    def __add__ (self, other):
        if not isinstance (other, ThisClass):
            other = ThisClass (other)


        Mel.