I have the following code... import array len32 = array.array('L') len16 = array.array('H') len32.append(0) len16.append(0) y = len32[0] print y.__class__ <type 'long'> z = len16[0] print z.__class__ <type 'int'> how can I change Zs type to long? Or how how can I change an arrays type?