An inch is worth a pound of gold, an inch of gold is hard to buy an inch of time.
Slice
When the scale of data is so large that we have to pick a short of the content, the best way is to use Slice.
Forward Slice
>>>L=range(1,101) >>>L[1:] #until the end >>>L[:101] #from the first >>>L[1:100] >>>L[1:101:2] #pick one in two