Python 3 turn range to a list

Question

I'm trying to make a list with numbers 1-1000 in it. Obviously this would be annoying to write/read, so I'm attempting to make a list with a range in it. In Python 2 it seems that:

some_list = range(1,1000)

would have worked, but in Python 3 the range is similar to the xrange of Python 2?

Can anyone provide some insight into this?

Answer 1

You can just construct a list from the range object:

my_list = list(range(1, 1001))

This is how you do it with generators in python2.x as well. Typically speaking, you probably don't need a list though since you can come by the value of my_list[i] more efficiently (i + 1), and if you just need to iterate over it, you can just fall back on range.

Also note that on python2.x, xrange is still indexable¹. This means that range on python3.x also has the same property²

^{1print xrange(30)[12] works for python2.x}

^{2The analogous statement to 1 in python3.x is print(range(30)[12]) and that works also.}