else clauses in while and for loops
clarence at netlojix.com
Sat Apr 15 22:59:20 CEST 2000
On Sat, 15 Apr 2000, Nick Maclaren wrote:
>In article <38F79B93.B03F0A6B at mindspring.com>,
>Chuck Esterbrook <echuck at mindspring.com> wrote:
>>So did anyone present, in this thread, an example that shows a real need?
>Whether or not they have one, there is a fairly common case:
> Perform an action XXX provided that no member of sequence YYY
>fulfils a particular criterion.
I never thought of that general wording, but it certainly fits.
I did this just yesterday:
for fname in ('keyword','terms','title','journal','author','pubdate','thd','entrynumber'):
Errs.append('No search field supplied')
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