how do I make a list into multiple lists of that list?

Question

so lets say this is my list:

my_list = ['a','b','c','d','e','f']

and I want it to become:

new_list = [['a','b','c'],['d','e','f']]

I know there's a way to do it with:

new_list = []
new_list1 = []
new_list2 = []    
for x in my_list:
  new_list1.append((x[0]+x[1]+x[2]))
  new_list2.append((x[3]+x[4]+x[5]))
  new_list.append((new_list1+new_list2))
print(new_list)

is there another way to do it? Thank you

What is the pattern of the nested lists? Each 3 elements, a new list? — Christian Tapia, Nov 23 '13 at 21:22
Your code does quite different things than what your example shows. What do you really want? — Reinstate Monica, Nov 23 '13 at 21:31

score 3 · Accepted Answer · answered Nov 23 '13 at 21:23

3

>>> [my_list[i:i+3] for i in xrange(0, len(my_list), 3)]
[['a', 'b', 'c'], ['d', 'e', 'f']]

answered Nov 23 '13 at 21:23

alko

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what is xrange? what is that x for? – user3025931 Nov 23 '13 at 21:30
@user3025931 let me google it for you: http://docs.python.org/2/library/functions.html#xrange – alko Nov 23 '13 at 21:30
@user3025931 as you seems to be using python3, use range instead – alko Nov 23 '13 at 21:34

how do I make a list into multiple lists of that list?

1 Answers1