9. Glossary
- dictionary
- A collection of key-value pairs that maps from keys to values. The keys can be any immutable type, and the values can be any type.
- enumerate
- A built-in Python function that enables us to iterate over a collection and generate an auto-incremented index to associate with each item.
- key
- A data item that is mapped to a value in a dictionary. Keys are used to look up values in a dictionary.
- key-value pair
- One of the pairs of items in a dictionary. Values are looked up in a dictionary by key.
- mapping type
- A mapping type is a data type comprised of a collection of keys and associated values. Python’s only built-in mapping type is the dictionary. Dictionaries implement the associative array abstract data type.
- tuple
- A sequential collection of items, similar to a list. Any python object can be an element of a tuple. However, unlike a list, tuples are immutable.