Augmented Assignement (was: Re: PEP scepticism)

Paul Prescod paulp at ActiveState.com
Sun Jul 1 06:30:38 CEST 2001


Rainer Deyke wrote:
> 
> "Carlos Ribeiro" <cribeiro at mail.inet.com.br> wrote in message
> news:mailman.993927046.4577.python-list at python.org...
> > As the current discussion about Augmented Assignment stands, I was
> > wondering if it was not better to make it invalid to use augmented
> > assignment on immutable types.
> 
> Bad idea.  If anything, I would go the other direction and make it illegal
> for mutable types.  ...

This is the argument that froze augmented assignments in their tracks
for years. I was somewhat surprised when they finally made it in because
it was always clear in the discussions that any behaviour would confuse
about half of the population. That's usually where Python Refuses To
Choose.

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