Driver code
if __name__ == " _ _ main _ _ " : NEW_LINE INDENT cardNo = "79927398713" NEW_LINE if ( checkLuhn ( cardNo ) ) : NEW_LINE INDENT print ( " This ▁ is ▁ a ▁ valid ▁ card " ) NEW_LINE DEDENT else : NEW_LINE INDENT print ( " This ▁ is ▁ not ▁ a ▁ valid ▁ card " ) NEW_LINE DEDENT DEDENT