__autoinit__

[Dan Sommers]

On Mon, 11 Jul 2005 19:37:03 -0400,
Mike Meyer <mwm at mired.org> wrote:

> The question is - how far are you really willing to carry this? What
> do you think of allowing arbitrary lvalues, with the assumption that
> the previous arguments are all defined (ala let*)? So you could do:

> class grouping:
>     def __init__(self, x, x['abc']):
>         pass

Python already implements let*; it's called "tuple unpacking":

    Python 2.3.3 (#1, Mar  9 2004, 14:21:31) 
    [GCC 3.3 20030304 (Apple Computer, Inc. build 1493)] on darwin
    Type "help", "copyright", "credits" or "license" for more information.
    >>> x, x['abc'] = {}, 3
    >>> print x
    {'abc': 3}
    >>> x, x['abc'], x['abc'][4] = {}, range(10), -9999
    >>> print x
    {'abc': [0, 1, 2, 3, -9999, 5, 6, 7, 8, 9]}

Regards,
Dan

-- 
Dan Sommers
<http://www.tombstonezero.net/dan/>