Loris Caren enlightened us with:
> If
>
> a = 'apple'
> b = 'banana'
> c = 'cabbage'
>
> How can I get something like:-
>
> for i in 'abc':
> r = eval(i)
> if r == 'cabbage': r = 'coconut'
>
> actually change the object referenced by r rather
> than creating a new object temporarily referenced by it?
Use:
x = {
'a': 'apple',
'b': 'banana',
'c': 'cabbage'
}
for key, value in x.iteritems():
if value == 'cabbage':
x[key] = 'coconut'
NOTE: I haven't tested this code
> I've tried playing with eval and exec without the desired effect.
If you notice yourself using such functions, it's ususally a lot
better to simply stash your data in a dictionary, and use that
instead.
Sybren
--
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself?
Frank Zappa
--
http://mail.python.org/mailman/listinfo/python-list
