[Python-Dev] Re: Sets: elt in dict, lst.include - really begs for a PEP

Thomas Wouters thomas@xs4all.net
Wed, 31 Jan 2001 20:14:58 +0100

[ Trimming CC: line ]

On Wed, Jan 31, 2001 at 11:50:10AM -0500, Barry A. Warsaw wrote:

> Moshe, I had exactly the same reaction and exactly the same idea.  I'm
> a strong -1 on introducing new syntax for this when new methods can
> handle it in a much more readable way (IMO).

Same here. I *might* like it if iterators were given a format string (or
tuple object, or whatever) so they knew what the iterating code expected
(so something like this:

  for x,y,z in obj

would translate into 


or maybe just


or maybe even just

  iterator(obj)(3) # that is, number of elements

or so) but I suspect it might be too cute (and obfuscated) for Python,
especially if it was put to use to distingish between 'for x:y in obj' and
'for x,y in obj'.

Thomas Wouters <thomas@xs4all.net>

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