A given key is unique to a given dictionary. Multiples of the same key aren’t possible. If you want to have a key that points to multiple values, you’d use a structure like a list, a tuple, or ...

This post explains how to add to a dictionary in Python, create new dictionaries, and more. Powerful data manipulation is now within your grasp!

The “w+” tells Python that we are writing to a new file. If the file already exists, then that file is overwritten. If the file doesn’t already exist, then it will be created.