how to create list of lists python code example

Example 1: how to make a python list

listName = [1,2,3,4]

Example 2: how to make a list python

list = ['list element', 'list element']
# or t obe more effecient:
import numpy #if you do not have numpy, do "pip install numpy"
numpyarray = numpy.array(['array element', 'array element'])
#a numpy array is faster than a standard list