While our class works well, there are a few additional things we can do to make it better. Add Security One down side to our class is while we have class variables, anyone who knows our variable names can access them by specifying our object instance name and then the variable name, like in the…
Let’s look at building a simple class. A dice class. If we think of a dice, we know there are different types. We’ll look at something simple like a standard six sided dice. Defining the Class We need to define the class. This starts off similar to a lot of Python. We’ll have a class…
Class vs Object One of the big questions about OOP is what is a class, vs what is an object. A class, sometimes called class definition, tells us what the object will look like. What internal variables they are using, and what methods will be used to access and control those values. However, it is…
Serialization is the process of converting an object into a series of bytes, called a byte stream, to be stored or sent for later use. This could include being sent across a network, written to a file, or other process. In Python, this is called pickling. Now, we’ve seen how to convert numbers to a…
As with other Python objects, there are the set has several functions and methods to make working with it easier. As with the list, tuple, and dictionary, you can use the len() function to get the number of elements within a set. Adding and Removing Elements Adding Elements As with other mutable objects, you can…
A set is a special object that works similar to sets in mathematics. As such, all elements (values) in the set must be unique. Elements can be of a different types. To create a set, you just define the variable name, and specify that it = set(), to create an empty set, or pass it…
Python’s Dictionary datatype is a class, which means it has methods directly associated with it to make working with that data easier. The clear() method allows you to empty the dictionary of all of it’s data. The get() method works similarly to the [key], where you get the value of the key. The main difference…
A dictionary is an object that stores a collection of data with each element being made up of two parts, a key, how you reference the element, and the value that is stored. This is sometimes called a key-value pair. When you want to access a certain element’s data, you can use the key to…
