8. Multiple assignment

RunResetLoad History

xxxxxxxxxx

 

1

n1, n2, n3, n4 = eval(input("Enter 4 grades separated by commas: "))

2

print("Mean:", (n1 + n2 + n3 + n4) / 4)

3

x = 4

4

y = 5

5

suma, difference = x + y, x - y

6

print(suma)

7

print(difference)

8

x, y = y, x

9

print(x, y)

10

​

Activity: 8.1 ActiveCode (ac_l40_8_en)

• To swap variables, the following sequence does not work!

1 x = 4 2 y = 5 3 x = y 4 y = x Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 4 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 8.2 (cl_l40_8a_en)

• One solution would be to use a temp variable.

1 x = 4 2 y = 5 3 temp = x 4 x = y 5 y = temp Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 5 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 8.3 (cl_l40_8b_en)

• Multiple assignment can also be used, which is more elegant.

1 x = 4 2 y = 5 3 x, y = y, x Edit this code line that just executed next line to execute << First < Prev Next > Last >> Step 1 of 3 Submit Python Tutor by Philip Guo Customize visualization (NEW!)

Print output (drag lower right corner to resize) Frames Global frame Objects

Activity: CodeLens 8.4 (cl_l40_8c_en)

You have attempted 1 of 3 activities on this page