python index array code example

Example 1: array in array python

#You can put multiple arrays in one array
tests = [[1,2,3],["r",22,33]]
#prints: [[1,2,3],['r',22,33]]

Example 2: how to index an array in python

arrayName[Index Number]

Example 3: how do i index into array

>>> x = np.arange(10)
>>> x[2]
2
>>> x[-2]
8