Python - Dictionaries

Dictionaries - Python module Y107

Lists and tuples are collections of data values held in an object in which they can be referenced by a position number. Dictionaries are mutable collections of objects in which data values can be looked up name.

This topic is presented on public course Python Programming

Examples from our training material

coin.py	Class used by dictionary with object key example
d1.py	Defining and looking up in a dictionary
d2.py	Looping through all the elements of a dictionary
d3.py	Can I sort a dictionary?
pocket.py	dictionary with object keys - example
pred.py	Illustration of a program that would benefit from dictionaries
pres.py	Is a key used in a disctionary?
zip-it.py	Joining 2 lists into a dictionary

Opentalk forum discussions related to this topic

Sorting a dictionary in Python

Pictures

Practical session on a Python course

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

Why do we need dictionaries?.
Defining and using a dictionary.
Hashing and Sorting.
Checking whether an itemÕs in a dictionary.
Using other objects as dictionary keys.

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