Inspiration and influence of the else clause of loop statements in Python?

Posted by Aristide on Stack Overflow See other posts from Stack Overflow or by Aristide
Published on 2010-05-27T20:06:03Z Indexed on 2010/05/27 20:11 UTC
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Python offers an optional else clause in loop statements, which is executed if and only if the loop is not terminated by a break. For an interesting discussion about this neglected commodity, see this question. Here, I just wanted to know:

if the very concept of this loop-else construct originates from another language (either theoretical or actually implemented),
conversely, if it was taken up in any newer language.

May be I should ask the former to Guido, but he surely is a too busy guy for such a futile inquiry. ;-)

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