On Jul 11, 4:21 pm, [EMAIL PROTECTED] wrote:
> I'd like to implement a subclass of string that works like this:
>
> >>>m = MyString('mail')
> >>>m == 'fail'
> True
> >>>m == 'mail'
> False
> >>>m in ['fail', hail']
>
> True
>
> My best attempt for something like this is:
>
> class MyString(str):
> def __init__(self, seq):
> if self == self.clean(seq): pass
> else: self = MyString(self.clean(seq))
>
> def clean(self, seq):
> seq = seq.replace("m", "f")
>
> but this doesn't work. Nothing gets changed.
>
What about subclassing str and redefining __eq__:
>>> class MyString(str):
... def __eq__(self, other):
... return not str.__eq__(self, other)
...
>>> m = MyString('mail')
>>> m == 'fail'
True
>>> m == 'mail'
False
>>> m in ['fail', 'hail']
True
--
Hope this helps,
Steven
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