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

You can do this in a separate file.

testmyscript.py

import sys
someFile= open( "somefile.in", "r" )
sys.stdin= someFile
execfile( "yourscript.py" )