Python Meta-group knowledge points

1, tuples are an ordered set,
2, tuples and lists can use indexes, slices to take values.
3, after the creation of tuples can not be in situ modification and replacement operations.
4. Tuples support nesting, which can include lists, dictionaries, and different tuples.
5, tuples support the operation of general sequence, for example: +, *
>>> (+) + (3,4)
(1,2,3,4)
>>> (7,8)
(7,8,7,8,7,8,7,8)
Note the +, * operation, returns a new tuple

The immutability of tuples plays a very important role in guaranteeing the security of a program.

Python Meta-group knowledge points