| --- | |
| title: 'tuple' | |
| --- | |
| The built-in tuple type. Example tuple expressions: | |
| ``` | |
| x = (1, 2, 3) | |
| ``` | |
| Accessing elements is possible using indexing (starts from `0`): | |
| ``` | |
| e = x[1] # e == 2 | |
| ``` | |
| Lists support the `+` operator to concatenate two tuples. Example: | |
| ``` | |
| x = (1, 2) + (3, 4) # x == (1, 2, 3, 4) | |
| x = ("a", "b") | |
| x += ("c",) # x == ("a", "b", "c") | |
| ``` | |
| Similar to lists, tuples support slice operations: | |
| ``` | |
| ('a', 'b', 'c', 'd')[1:3] # ('b', 'c') | |
| ('a', 'b', 'c', 'd')[::2] # ('a', 'c') | |
| ('a', 'b', 'c', 'd')[3:0:-1] # ('d', 'c', 'b') | |
| ``` | |
| Tuples are immutable, therefore `x[1] = "a"` is not supported. |