how to take fast input in python

1import sys
2input = sys.stdin.readline
3# contributed by rohit gupta

1
2# Fast Input and Output in Python
3
4from sys import stdin, stdout
5
6# For single input:
7
8input = int(stdin.readline())
9
10# For multiple inputs from single line:
11
12def get_inputs(): 
13    return map(int, sys.stdin.readline().strip().split())
14
15input1, input2, input3, input4 = get_inputs()
16
17# For fast output
18
19stdout.write(n1)
20stdout.write(str(input1) + '\n' + str(input2) + '\n' + str(input3))
21
22# Contributed by Supantha Roy
23