Please explain the reason behind this tuple behavior.
>>> a=((1,(2,3)),(4,(5,6)))
>>> (1,(2,3)) in a
True
>>> a=((1,(2,3)))
>>> (1,(2,3)) in a
False
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Erick
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3In your second example set `a=((1,(2,3)),)` to make it a tuple. – sberry Mar 16 '17 at 05:23
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`(x)` does _not_ create a tuple. you must use a trailing comma `(x,)` – Paul Panzer Mar 16 '17 at 05:24