How to test a Python script with an input file filled with testcases?

Question

I\'m participating in online judge contests and I want to test my code with a .in file full of testcases to time my algorithm. How can I get my script to take input from this .i

Answer 1

Read from file(s) and/or stdin:

import fileinput
for line in fileinput.input():
    process(line)