please explain this code in python. why it outputs 10 at both, print statements?

Question

# Python program to demonstrate ternary operator
a, b = 10, 20

# Use tuple for selecting an item
print( (b, a) [a < b] )

# Use Dictionary for selecting an item
print({True: a, False: b} [a < b])

output:
10
10

Answer 1

a,b = 10,20

This means

a = 10
b = 20

now

print( (b,a) [a<b] )

(20,10) [10<20]

Since the condition is true so it returns 1

(20,10) [1]
0 1

So index 1 is 10

Similarly

print({True:a, False:b} [a<b])

Condition is still true here

And the key True has value a

Which is 10

Answer 2

Thank u fr ur clear explanation.. Utkarsh Sharma and visph .👍🏻

Answer 3

in the second case there is a key True in the dict, with the value of a (10)

in the first case the tuple has two elements (b,a), in wich there's two indexes (0,1) for accessing the value. The trick is that under the hood, boolean value are 0 for False and 1 for True, so you print the value at index True == 1 (10)