16. Multiple Assignment
16.1. Multiple Assignment in Tuple, list, strings
Assign multiple variables at the same time time using commas.
The code below assigns 3 variables in one line resulting in: a = 1, b = 2, c = 3.
This can also be written as tuples: (a, b, c) = (1, 2, 3)
a, b, c = 1, 2, 3 print(a, b, c)
This works with tuples fully written.
(a, b, c) = (4, 5, 6) print(a, b, c)
This works with lists.
[a, b, c] = [7, 8, 9] print(a, b, c)
This works with strings.
a, b, c = "xyz" print(a, b, c)
16.2. Packing with * in multiple assignment
In the code below, a is assigned 1 and b is assigned 2, and c is assigned the rest of the values packed as a list.
Note that in the print output, c is a list.
a, b, *c = 1, 2, 4, 5, 6, 7 print(a, b, c)
16.3. Swapping variable values
In the code below, a is assigned 7 and b is assigned 8.
a, b = b, aswaps those values so a is 8 and b is 7.
a, b = 7, 8 a, b = b, a print(a, b)