>>> a = 'wtf' >>>b = 'wtf' a is b True >>>id(a) 4517705904 >>>id(b) 4517705904 >>>a = 'wtf!' >>>b = 'wtf!' a is b False >>>id(a) 4517707184 >>>id(b) 4517707120
>>> a = 'wtf' >>>b = 'wtf' a is b True >>>id(a) 4517705904 >>>id(b) 4517705904 >>>a = 'wtf!' >>>b = 'wtf!' a is b False >>>id(a) 4517707184 >>>id(b) 4517707120