venture of iit bombay vjti alumni python programming language assumes any non-zero and non-null values as trueand if it is either zero or nullthen it is assumed as false value python programming language provides following types of decision making statements click the following links to check their detail sr no statement description if statements an if statement consists of boolean expression followed by one or more statements if else statements an if statement can be followed by an optional else statementwhich executes when the boolean expression is false nested if statements you can use one if or else if statement inside