printing a sequence...

Florian Preknya bolo at coco.ro
Fri Jul 16 12:18:52 CEST 2004


Hi everybody,

I'm relatively new in using Python and I want to perform a simple job: I
have a list of objects of type A and want to print them to stdout.

class A:
    def __init__(self, value):
        self.value = value

    def __str__(self):
        return "value: %d" % self.value

a = [A(10), A(12), A(2)]
print str(a)

I obtain [<__main__.A instance at 0x00767D80>, <__main__.A instance at
0x00768698>, <__main__.A instance at 0x00768350>].
What I want to obtain is [value: 10, value: 12, value: 2].

I know that if I change the __str__ to __repr__ I obtain what I want, but
then I will have these informal strings in debuger also, and I do not want
that.

Can I write somehow the print statement to force calling the A.__str__
function?

Thanks,
Florian.





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