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Section 12.6 Glossary

Glossary Glossary

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.
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 1  abstract data type.
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