[Python-ideas] Nudging beginners towards a more accurate mental model for loop else clauses
mwm at mired.org
Fri Jun 8 21:53:05 CEST 2012
On Fri, 08 Jun 2012 21:53:18 +0900
"Stephen J. Turnbull" <stephen at xemacs.org> wrote:
> My main point about documentation is that for/else and if/else should
> not be linked directly, but rather via while/else.
Right. That was the most enlightening comment I saw in this
thread. Writing the if/else and while/else out as:
# code to run if condition is true
# code to run if condition is false
# code to run while condition is true
# code to run when condition is false
Seems obvious enough to me. For is a little bit harder, but still a
straightforward if you think about it in terms of the while.
for x in iterable:
# code to run while there are objects left in iterable
# code to run when there are no objects left in iterable.
Mike Meyer <mwm at mired.org> http://www.mired.org/
Independent Software developer/SCM consultant, email for more information.
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