[Python-Dev] Explicit Lexical Scoping (pre-PEP?)

Just van Rossum just at letterror.com
Wed Jul 5 11:46:50 CEST 2006

Guido van Rossum wrote:

> On 7/5/06, Phillip J. Eby <pje at telecommunity.com> wrote:
> > Did you also consider and reject:
> >
> > * Alternate binding operators (e.g. ":=", ".=", etc.)
> Brr.

That's too bad :(

I still find a rebinding operator (":=" being my favorite) much, *much*
more appealing than any of the alternative proposals. It's beautifully
symmetrical with "assignment means local". It also pretty much makes the
global statement redundant.

The only downside I see is that it may cause a fairly big shift in
style: I for one would use := for rebinding local names. While I think
that would be an improvement (eg. by catching typo's earlier), it's


Change is bad. We fear change. -- Garth Algar

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