gistfile1.py

#!/usr/bin/python

class ValidatedClass:
    def __init__(self, a, b, c, d, e, f, g):
        if not self.checkval(b):
            raise ValueError("b must be less than 10")
        
    def checkval(self, val):
        return val < 10
        

if __name__ == "__main__":
    X = ValidatedClass( 1, 11, 3, 4, 5, 6, 7 )