Python - Todoist API - Store data into Dictionary
At first remember that a dictionary is just bunches of keys and value pairs...

So, if the key is $a$ and the value is $10$ , you can access the value by doing d[a] (d is the dictionary)

Beaware that there is no order to storing the values, you can use OrderedDict for that..

Also you can have two values for the same key in a simple dictionary.

Here's the complete answer