Find the first element that meets the condition

[Troy Melhase]

> I have implemented it this way, may be, there should be a built in
> hiding somewhere in the standard libraries?

the itertools module might have what you're after.  something similar
to your example:

>>> import itertools
>>> r = iter(range(100))
>>> n = itertools.dropwhile(lambda x:x<=13, r)
>>> n.next()
14