[Python-Dev] A cute new way to get an infinite loop (original) (raw)

Bob Ippolito bob at redivi.com
Sat Sep 25 05:36:10 CEST 2004


On Sep 24, 2004, at 11:33 PM, George Yoshida wrote:

Tim Peters wrote: >>>>x = [1] >>>>x.extend(-y for y in x)

It does not always go into an infinite loop. I was bitten by this: >>> x = [] >>> x.extend(-y for y in x) Segmentation fault

No algorithm that requires infinite memory will run for an infinite amount of time on a finite computer. Of course it should raise an exception instead of segfaulting though.. could it be blowing the stack?

-bob



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