Barry Warsaw barry at python.org
Fri Mar 3 22:23:54 CET 2006

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On Fri, 2006-03-03 at 13:06 -0800, Michael Chermside wrote:

> I think it's clear that if a method is invoked magically, it ought to have
> underscores; if it is invoked directly then it ought not to. next() is
> invoked both ways, so the question is which of the following invariants
> we would rather maintain:
> 
>   * Any method that gets invoked 'magically' (by syntax) will have
>     underscores.
> 
>   * Any method with underscores should be invoked directly only if
>     you are practicing deep magic.

Practicality beats purity, so IMHO if the user should type it, it should
not have underscores.  If we grow a built-in next() -- which I'm -0 on,
then clearly it should get renamed to __next__() because then the user
would /not/ be expected to write it.

-Barry

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