what does 'for _ in range()' mean?

[Leif K-Brooks]

Christopher T King wrote:
> On Wed, 28 Jul 2004, Skip Montanaro wrote:
> 
>>One might consider adding 'i' to that list.  If nothing else, it would avoid
>>a bunch of warnings...  ;-)
> 
> But then we'd have to add a, t, n, and x, too ;)

Don't forget j.