Numpy ndarray.itemset() function | Python

numpy.ndarray.itemset() function insert scalar into an array.
There must be at least 1 argument, and define the last argument as item. Then, arr.itemset(*args) is equivalent to but faster than arr[args] = item. The item should be a scalar value and args must select a single item in the array arr.

Syntax : numpy.ndarray.itemset(*args)

Parameters :
*args : If one argument: a scalar, only used in case arr is of size 1. If two arguments: the last argument is the value to be set and must be a scalar, the first argument specifies a single array element location. It is either an int or a tuple.

Code #1 :

Output :

Input array :  [[8 0 3]
 [8 4 3]
 [4 1 7]]
Output array :  [[8 0 3]
 [8 0 3]
 [4 1 7]]

 
Code #2 :

Output :

Input array :  [[8 0 3]
 [8 4 3]
 [4 1 7]]
Output array :  [[8 0 3]
 [8 4 3]
 [4 1 9]]