Read a random line from a file

randline.py

#!/usr/bin/env python
import os
import random
import sys
 
def randline(fname):
    result = ''
    if os.path.exists(fname):
        result =  random.choice([line for line in open(fname)])
    return result
 
def main(*args):
    for arg in args[1:]:
        print(randline(arg))
    return 0
 
if __name__ == "__main__":
    sys.exit(main((*sys.argv))