For some reason I thought I needed this code, but it turns out I
don't, really.
I need something weirder. Anyway, maybe someone else could use this.
def enrag(start, stop=None, step=1):
'''Yield a range of numbers from inside-out, evens on left.'''
if stop is None:
stop, start = start, 0
lstep = step * -2
rstep = step * 2
lstop = start - step
if stop % step > 0:
lstart = stop - (stop % rstep)
else:
lstart = stop - (rstep - (stop % rstep))
for left in xrange(lstart, lstop, lstep):
yield left
for right in xrange(step, stop, rstep):
yield right
--
William Clifford
--
http://mail.python.org/mailman/listinfo/python-list
