How does the dictionary work in this example?

I was working on a simple example on dictionaries in Python, I realized that there was a problem and I didn’t understand it.

paris = {
    1: 'apple',
    'orange': [2, 3, 4],
    True: False,
    12: 'True',
}
print(paris)

Why is my output for this code:

{1: False, 'orange': [2, 3, 4], 12: 'True'} and not {1: 'apple', 'orange': [2, 3, 4], True:False, 12: 'True'}

The value for the key 1 is False, not 'apple', as I expected. If I use another number for key number 1, I get the expected output.

>Solution :

The error is because you have both the keys 1 and True, which resolves to 1. And since in Python dictionaries, the keys have to be unique, the 1:apple gets overwritten by True: False, which gets displayed as 1: False.

Putting boolean values in a dictionary along with other types of variables isn’t a great idea.