Search a sequence for its minimum and stop as soon as the lowest possible value is found

[Jussi Piitulainen]

Paul Rubin writes:

> Peter Otten writes:
>> How would you implement stopmin()?
>
> Use itertools.takewhile

How? It consumes the crucial stop element:

   it = iter('what?')
   list(takewhile(str.isalpha, it)) # ==> ['w', 'h', 'a', 't']
   next(it, 42) # ==> 42