Python Language Dictionary: Difference between revisions

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=Create a Dictionary=
=Create a Dictionary=
=Access a Dictionary=
=Access a Dictionary=
==Access Individual Elements==
<code>[]</code>, <code>get()</code>


An attempt to access an inexistent key ends up in a <code>KeyError</code> exception being thrown.
An attempt to access an inexistent key ends up in a <code>KeyError</code> exception being thrown.


Test the existence of a key.
Test the existence of a key.
==Get All Keys==
==Get All Values==


=Change a Dictionary=
=Change a Dictionary=

Revision as of 19:44, 16 February 2022

Internal

Overview

Empty map

m = {}

Access:

d["key"]

Create a Dictionary

Access a Dictionary

Access Individual Elements

[], get()

An attempt to access an inexistent key ends up in a KeyError exception being thrown.

Test the existence of a key.

Get All Keys

Get All Values

Change a Dictionary

Individual Elements

Add, modify, delete.

Combine Dictionaries