We've seen how to write and read text files. This is fine if you want to store the data in a human readable form or transfer the data to some…
Writing and reading text files in Python is fairly straightforward. It's easiest to illustrate the process with an example. Here is some code that generates the 52 cards in a…
[latexpage] Overloading the six comparison operators works in a similar way to the overloading of arithmetic operators. The operators and their associated methods are: Default behaviour Before we try overloading…
[latexpage] We've seen that the usual arithmetic operators +, -, * and / can be used with Python's numeric data types, and that some of these operators also have meaning…
[latexpage] One of the cornerstones of OOP is the concept of inheritance. The idea is best illustrated with an example. Suppose we have a number of objects that all have…
Programmers used to other object oriented languages such as C++, C# or Java will be familiar with the idea of private data fields and methods within a class. These private fields…
Although nothing we've done so far might suggest it, Python is actually a fully object-oriented language. Pretty well everything in a Python program is implemented as an object. From primitive…
A string in Python is a sequence of Unicode characters. Defining strings A string can be defined as an immutable object by giving the character sequence between a pair of…
[latexpage] We've seen how to define a function using the def keyword. This is the standard method of function definition in any case where more than a single expression is…
In our first post on Python functions, we saw how to define a simple function and pass arguments to it. Python offers a lot of flexibility in how arguments can…