A tuple is a sequence type similar to a sequence, except that once created, it cannot be changed, so a tuple can be thought of as an immutable list.
Tuple generation and basic operations
Python generates tuples with a pair of parentheses (), separated by commas
For tuples with two or more elements, you can omit the parentheses when constructing them
Tuples can also be indexed and sliced to view elements
Cannot be modified
2 Tuples containing only a single element
Since the parentheses’ () ‘have special meaning in expressions, for tuples containing only a single element
The 3-tuple method
Since tuples are immutable, he only supports. The count (), the index () method
Conversions between lists and tuples
Lists and tuples can be converted to each other using the tuple() and list() functions
List vs. tuple generation speed comparison
Immutability of tuples
After you create a tuple, you cannot change the shape of the tuple or re-create an element of the tuple
Assignment, however, is not absolute if the element in the tuple itself is mutable &