In <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] wrote:

> I want to have a str with custom methods, but I have this problem:
> 
> class myStr(str):
>     def hello(self):
>         return 'hello '+self
> 
> s=myStr('world')
> print s.hello() # prints 'hello world'
> s=s.upper()
> print s.hello() # expected to print 'hello WORLD', but s is no longer
> myStr, it's a regular str!
> 
> What can I do?

Return a `myStr` instance instead of a regular `str`:

    def hello(self):
        return myStr('hello ' + self)

Ciao,
        Marc 'BlackJack' Rintsch
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