what should i do?

rinting in python from textfile 1] def open_function(b): f = open (b, ,r.) first-line f.readline() rest = f.readlines() return first_line, rest only changing this function f.close ineed this to work 2] open_function ('bbb.txt') print(first_line) print (rest) NameError Traceback (most recent call last) ( 1 open_function ('bbb.txt') 3 print(first_line) 4 print (rest)