from operator import *
a = [0, 3, 1, 6, 2, 3, 4, 6, 3]
b = ['x', 'b', 'a', 'z', 'c', 'a']
c = ['c++', 'python', 'php', 'java', 'php']
print(getitem(a, slice(1, 4)))
print(getitem(b, slice(0, 2)))
print(getitem(c, slice(0, 3)))
'''
run:
[3, 1, 6]
['x', 'b']
['c++', 'python', 'php']
'''