Python - Objects - Intermediate

Python module Y112

Objects - Intermediate

Exercises, examples and other material relating to training module Y112. This topic is presented on public courses Learning to program in Python, Python Programming

Python Programming - training course - The fundamentals in depth, and an introduction to applications such as GUI design and Data Munging.

Python Programming - The fundamentals in depth, and an introduction to applications such as GUI design and Data Munging. This course starts at the fundamentals ...

http://www.wellho.net/course/ypfull.html [course]

Learning to Program in Python - training course - The fundamentals in depth, and an introduction to applications such as GUI design and Data Munging.

Learning to Program in Python - The fundamentals in depth, and an introduction to applications such as GUI design and Data Munging. This course starts ...

http://www.wellho.net/course/ylfull.html [course]

Custom course - training course - Custom course

Custom course - Custom course Custom course This is a custom course that will be tailored to your trainee's needs and based on their current knowledge ...

http://www.wellho.net/course/ccfull.html [course]

__new__ v __init__ - python constructor alternatives?

The constructor you'll normally override (and call when you create an object) in Python is called __init__, but there is also a method called __new__ ...

http://www.wellho.net/mouth/1146_-ne ... ives-.html [short article]

Calling base class constructors

In all object oriented languages, you have a facility called inheritance where you can define one type of thing ("class of object") based on another, ...

http://www.wellho.net/mouth/1819_Cal ... ctors.html [short article]

Inheritance

In (Object Oriented) programming terms, Inheritance is used to define a type of data (an object ) which behaves like another type of data with some ...

http://www.wellho.net/solutions/python-i ... tance.html [longer article]

Comparison of Object Oriented Philosophy - Python, Java, C++, Perl

There are two different philosophies that have been adopted by the authors of Object Oriented languages. The first approach is to set the thing up in ...

http://www.wellho.net/mouth/831_Comp ... -Perl.html [short article]

Python supports object inheritance and all that that implies, such as polymorphism. This module shows you how inheritance works in Python.

This topic is presented on public courses Learning to program in Python, Python Programming

Examples from our training material

accom.py	Accommodation base clase
accom_finder.py	Sample application using hotel and bandb
accoms.xyz	Sample data for accoms program
addload	Illustration of how the + (add) operator is really defined
bandb.py	definition of subclass bandb of accom
boxex	Overloading (redefining) addition and how a variable is printed
fcl.py	program to show use of "person" class
goat.py	Defining a class of goats and overriding addition
hotel.py	definition of subclass hotel of accom
hound.py	Definition of two objects to demonstrate polymorphism
obob	Inheritance demo
people.py	Class, subclasses, test harness. Inheritance, Poymorphism and Overloading
person.py	Class with Body Mass Index method
pysin	Singleton class
thems	Polymorphism demonstration - uses cat and dog objects from hound.py
triang.py	definition of a property
ttest.py	calling an attribute [property]
ub	Utility method to construct different objects
yum	Define your own add and print methods

Pictures

Overloading operators in Python

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

A first example of inheritance in Python.
A further example.
Classic and new-style classes.
Attributes and properties.
Finding out about the class of an object.
Overloading operators.
A practical example of overloading operators.

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