Re:What’s New In Python 3.6
by Animats on Wednesday December 07, 2016 @03:07PM
(#13125737)
Oh, that's where it comes from. As a non-PHP user, I thought it was a strange feature.
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No, it's much much older than PHP. It's in PHP because it was in Perl (which is also why it's in Ruby). I think iit was in Perl because it was in sh. But I wouldn't be surprised to hear that it's older than that. Snobol maybe?