Python dictionaries consists of one or more keys —an object like a string or an integer. Each key is associated with a value, which can be any Python object. You use a key to obtain its related ...

One doesn’t have to use an enum; any dotted-property name will do. That said, enums tend to be the most familiar and idiomatic way to do this in Python.

Python 3.9’s PEG-based parser removed these barriers, which long-term could lead to more elegant syntax — our first example of this change is the new parenthesized context managers.