[Python-Dev] Python Enhancement Proposals (PEPs)

[M.-A. Lemburg]

Fredrik Lundh wrote:
> 
> ?!ng wrote:
> > > Re: open issues: marry([0, 1, 2]) should return [(1,), (2,), (3,)]
> > > Otherwise user-code will probably have to special case more often.
> 
> as in
> 
>     # normal case
>     for (x,) in zip([0, 1, 2]):
>         ...
> 
> vs.
> 
>     # special case
>     for x in zip([0, 1, 2]):
>         ...
> 
> ?

Uhm, why should marry() be defined for a single argument ?
IMHO, this only masks program errors.

BTW:

>>> from mx.Tools import NewBuiltins
>>> marry = tuples
>>> john = lists
>>> marry([0,1,2])
Traceback (innermost last):
  File "<stdin>", line 1, in ?
TypeError: sequence elements must be sequences
>>> marry([0,1,2],[3,4,5])
[(0, 3), (1, 4), (2, 5)]
>>> john([0,1,2],[3,4,5])
([0, 3], [1, 4], [2, 5])

... the code is there. I'd say: use it :-)

(Who invented those silly function names ?)

-- 
Marc-Andre Lemburg
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