Dictionary Functions

Question

What is the result of this code?
fib = {1: 1, 2: 1, 3: 2, 4: 3}
print(fib.get(4, 0) + fib.get(7, 5))

How this code give us the output is 8.?

Answer 1

the first get gets the value of key 4 ie 3, the second get looks for the key 7 value but since key 7 does not exist uses the default value you have set ie 5
5+3 = 8

Answer 2

You used 2 arguments for Dictionary.get() in each case.
The get() method defaults to argument 2 if argument one cannot be found:
4 gets 3
0 skipped

7 gets None
5 returned (default)

3+5=8