Re: some ideas for Haskell', from Python

Brandon S. Allbery KF8NH ha scritto:
 >
 > [... about Python import local to functions ...]
> 
>> Sometime they are necessary, to avoid circular import problems (but 
>> this not a problem with Haskell).
> 
> ...in theory. In practice GHC needs help with circular imports, and some 
> cycles might be impossible to resolve.
> 

This is interesting.
Where can I find some examples?

Is this explained in the Real World Haskell book?

Thanks  Manlio Perillo