>>> t=(1,2,3)
>>> t+t
(1, 2, 3, 1, 2, 3)
>>> t*2
(1, 2, 3, 1, 2, 3)
>>> t+t==t*2
True
>>> t+t is t*2
False
>>> id(t+t)
49172744L
>>> id(t*2)
49172744L
but they also have same id (t+t),(t*2). Why are they not equal
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Piraveen siva
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Check this answer https://stackoverflow.com/questions/13650293/understanding-pythons-is-operator – leelum1 Jun 16 '18 at 12:53
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4`is` does identity testing, `==` tests for equality.. You and your twin might seem equal, but you are not identical. same goes for `t+t` and `t*2` - they look equal but are not identical – Patrick Artner Jun 16 '18 at 12:53
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>>> id(t+t) 49172744L >>> id(t*2) 49172744L – Piraveen siva Jun 16 '18 at 13:10