Can anyone please explain me the use of "import sys" in this code or in general ? I found it in python tutorial pdf.

Question

#demo code to print multiplication table from 1 to 10

import sys

for i in range(1,11):
for j in range(1,11):
k=i*j
print(k, end=' ')
print()

Answer 1

the code works just fine without using import sys. So what is it used for ?