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…
Like a list, Strings are actually objects in Python. That means, the have methods attached to them, to help you work with them. Here we’re going to look at some common methods to see how you can use them. Testing a String The first set of methods we’re going to look at are tests. These…
While we’ve used strings in many of our examples and some of out assignments so far, we’ve not actually worked too much with Strings. Remember that a string is a collection of characters which are either taken as an input from a user, read from a text file, or enclosed within quotes within our program….
A tuple is a sequence, similar to a list. The difference is that with a Tuple, it’s data is immutable. i.e. Once the data is set, it cannot change. When you create a tuple, you are going to enclose it within parentheses () instead of square brackets. Like with lists, they can contain numbers, strings,…
We’ve looked at different ways to working with lists using functions and built in methods of the list. But now I want to show you how you might use Python to work with a list that doesn’t use a normal command. Some will be using loops, and operators, others, like copying a list to a…
