Python Challenge — Day 22

Source: https://twitter.com/CodingComputing/status/1685852417579966465?s=20
Level: beginner

Question
What is the output of the following code and why?

d = {1:10, 2:20, 3:30}
print(20 in d)

Answer

False

Explanation

So, the first time, the program will be defined d as a new dictionary and assign {1:10, 2:20, 3:30} as elements.

In Python, a dictionary is a collection of key-value pairs. and in this dictionary, the first number 1, 2, 3 called as key and the second number 10, 20, 30 is the corresponding value.

In the second line, the syntax instructs the computer to print 20 in d . Remember, it is mean the 20 is from key not from the corresponding value .

Because the key value in d not have 20 in the key so it will show False as the result.