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Engineering LibreTexts

9.G: Dictionaries (Glossary)

dictionary
A mapping from a set of keys to their corresponding values.
hashtable
The algorithm used to implement Python dictionaries.
hash function
A function used by a hashtable to compute the location for a key.
histogram
A set of counters.
implementation
A way of performing a computation.
item
Another name for a key-value pair.
key
An object that appears in a dictionary as the first part of a key-value pair.
key-value pair
The representation of the mapping from a key to a value.
lookup
A dictionary operation that takes a key and finds the corresponding value.
nested loops
When there are one or more loops "inside" of another loop. The inner loop runs to completion each time the outer loop runs once.
value
An object that appears in a dictionary as the second part of a key-value pair. This is more specific than our previous use of the word "value".