in operator on a list

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Accepted Answer

The 'in' operator on a list checks for exact element membership, not substrings. 'banana' is an element of the list, so it's True. 'ban' is a substring of 'banana' but is not itself an element of the list, so it's False. For substring checking, use 'ban' in 'banana' (checking inside a string), not against the list.