In this post, you’ll learn about how to use environment variables in Python on Windows, macOS, and Linux. Environment variables in Python enable you to write smoother workflows and more secure code. You’ll learn why environment variables are useful to
In this tutorial, you’ll learn how to use Python to find the list index of all occurrences of an element. In many cases, Python makes it simple to find the first index of an element in a list. However, because
In this tutorial, you’ll learn how to use the Python not equal operator, !=, to evaluate expressions. You’ll learn how the not equal operator works in both Python 3 and the older Python 2. You’ll learn how the not equal
In this tutorial, you’ll learn how to use the Python Counter class from the collections module to count items. The Counter class provides an incredibly pythonic method to count items in lists, tuples, strings, and more. Because counting items is
In this tutorial, you’ll learn how to get and use the value of pi in Python. We’ll explore a number of different ways in which you can get and store the value of pi in Python. First, we’ll look at
In this tutorial, you’ll learn all the different ways to copy a Python dictionary. While this may seem like a very rudimentary task, there are a number of complexities involved in this. In this tutorial, you’ll learn how to copy
In this tutorial, you’ll learn how to convert a list of Python dictionaries into a Pandas DataFrame. Pandas provides a number of different ways in which to convert dictionaries into a DataFrame. You’ll learn how to use the Pandas from_dict
In this tutorial, you’ll learn how to add (or insert) a row into a Pandas DataFrame. You’ll learn how to add a single row, multiple rows, and at specific positions. You’ll also learn how to add a row using a
In this tutorial, you’ll learn how to use Pandas to make a scatter plot. Under the hood, Pandas uses Matplotlib, which can make customizing your plot a familiar experience. Pandas allows you to customize your scatter plot by changing colors,
In this tutorial, you’ll learn how to generate random numbers in Python. Being able to generate random numbers in different ways can be an incredibly useful tool in many different domains. Python makes it very easy to generate random numbers
In this tutorial, you’ll learn how to use the Python list index method to find the index (or indices) of an item in a list. The method replicates the behavior of the indexOf() method in many other languages, such as
In this tutorial, you’ll learn about Support Vector Machines (or SVM) and how they are implemented in Python using Sklearn. The support vector machine algorithm is a supervised machine learning algorithm that is often used for classification problems, though it
