[Python-Dev] the explicit self

[Georg Brandl]

Kilian Klimek schrieb:
> Hello,
> 
> i know this has been discusses very much, i'm sorry,
> but i can't help it. In a nutshell, the proposal is as
> follows:
> 
> 1. Self remains explicit (like it is now).
> 2. if a class is a subclass of a special class, e.g.
>    named 'selfless', the self parameter is not required
>    and a special variable, named 'this' is provided.
> 
> 
> For example:
> 
> class Foo (selfless):
>     def __init__ (x, y):
>         this.x = x
>         ...
> 
> A patch for 3.0b3 implementing this can be found at
> http://www-lehre.inf.uos.de/~kklimek/misc/python_slp_8.diff

Just a note about the patch: it introduces the implicit "this" by
injecting it into the function's globals. Due to how Python looks
up globals and locals, this will be much slower than having a local
called "self".

Georg