Printing Python dicts

Question

A certain Python challenge question involves printing a dictionary with differently typed keys and values. Could someone please explain it? It is puzzle3 in the code below:

https://code.sololearn.com/csB19ISLTTVK/?ref=app

Answer 1

the reason seems to be that the keys are all the same.

Answer 2

Somebody did ask the same question: https://stackoverflow.com/questions/47803764/understanding-dict-literal-evaluation-with-true-1-and-1-0-as-keys

Answer 3

Oh, I see.