In this tutorial, you’ll learn how to get and check the type of a Python object using the type() and isinstance() functions. Everything in Python is an object and knowing what the object’s type is allows you to make better-informed decisions about what your code is doing. By the end of this tutorial, you’ll have […]
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In this tutorial, you’ll learn how to use Python to check if a list empty. Python lists are one of the most versatile and widely-used container objects. Because Python lists are iterable, you may often want to first check if a list is empty, before attempting to iterate over a list. Without this, your program
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In this tutorial, you’ll learn how to use Python to create a directory if it doesn’t exist. Creating directories programmatically can save you a ton of time. However, not checking if the directory exists first can lead to significant problems, such as deleting files. By the end of this tutorial, you’ll have learned: How to
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In this tutorial, you’ll learn how to use a requirements.txt file in Python to manage and handle the dependencies of your project. Using a requirements.txt file is particularly helpful when sharing your code with others via source code management tools, such as Github. The file provides the ability to easily track and identify the packages
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In this tutorial, you’ll learn how to add titles to your Matplotlib plots. You’ll learn how to add a title, a subtitle, and axis labels to your plot and subplots. You’ll learn how to style these titles individually and to multiple plots at once. Being able to add titles gives you the ability to better
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In this tutorial, you’ll learn how the modulo operator (%) works in Python. The Python modulo operator is one of the many arithmetic operators that are available in Python and one that you’ll encounter often. Because of this, understanding the details of how this operator works is an important skill for any Python developer. The
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In this tutorial, you’re going to learn how to convert a JSON file or string into a Python dictionary. Being able to work with JSON data is an important skill for a Python developer of any skill level. In most cases, data you access through web APIs will come in the form JSON data. Being
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In this tutorial, you’ll learn how to use the Python reduce() function to reduce iterables, such as lists. The Python reduce function takes an iterable of any length and a function and returns a single, reduced value. For many common operations, Python now provides simpler ways than using the reduce() function. However, the function provides
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In this tutorial, you’ll learn how to use Python to find prime numbers, either by checking if a single value is a prime number or finding all prime numbers in a range of values. Prime numbers are numbers that have no factors other than 1 and the number itself. Being able to work with prime
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In this tutorial, you’ll learn how to use Python to check if a string contains another substring. There are a number of ways to use Python to check a string for a substring, including case insensitivity, checking for patterns, and more. Being able to work with strings in Python is an important skill for a
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In this tutorial, you’ll learn about the Python setattr() function, including what it does, when to use it, and when it’s redundant to use it. The function is used to set an attribute to a value of an object, whether the attribute exists or not. By the end of this tutorial, you’ll have learned: What
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In this tutorial, you’ll learn how to use Python to check if a string is empty or not. Being able to work with strings and see whether or not they are empty is an important skill to learn. Python strings are immutable, meaning that they cannot be changed once they’re created. Because of this, it
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