a is bで同一性チェックできる
# a is b は普遍オブジェクトでは意味が無い >>> a = 'a' >>> b = 'a' >>> a is b True >>> a == b True >>> # Listなどの可変オブジェクトでは同一か判断できる >>> a = ['a'] >>> b = ['a'] >>> a is b False >>> a == b True >>>
# a is b は普遍オブジェクトでは意味が無い >>> a = 'a' >>> b = 'a' >>> a is b True >>> a == b True >>> # Listなどの可変オブジェクトでは同一か判断できる >>> a = ['a'] >>> b = ['a'] >>> a is b False >>> a == b True >>>