You can use 'break' in Python in all the loops: while, for, and nested. If you are using it in nested loops, it will terminate the innermost loop where you have used it, and the control of the program ...

1. ‘Break’ in Python is a control flow statement. It is used to control the sequence of the loop. Suppose you want to terminate a loop and skip to the next code after the loop; 'break' will help you ...

That loop is creating a load of empty dictionaries, then your second loop is overwriting those dictionaries with new ones that have your desired data already contained within.