On Feb 5, 5:48 am, "[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?
To prevent operations with your myStr class to return a simple str
instance, you will have to override pretty much all str method, as
well as magic methods, such as __add__, __radd__ etc.. Major pain in
perspective. You might want to reconsider you developing strategy.
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