The __abs__() method in Python specifies what happens when you call the built-in abs() function on an object. For example, let’s call abs() on a negative number: Output: The result is the absolute value of the negative number, that is, the distance from 0. The important part here is to understand that calling abs(n) is […]

To produce a range of letters (characters) in Python, you have to write a custom function that: Here is the code: Output: This is the quick answer. Feel free to use this code in your project. However, to understand how it works, let’s build this function from scratch step by step. How Does Range of

In Python, you can start indexing from the end of an iterable. This is known as negative indexing. For example, let’s get the last value of a list: Output: Here is an illustration of how the list indexing works in Python: This means you can use both positive and negative indexes to access iterables. This

In Python, you can use the built-in range() function to generate a range of numbers from a start point to an end point. For instance, let’s create a range of numbers from 0 to 5 and print them out: Output: Notice how the last number in the range() call is 6. This means the last

Slicing in Python means accessing a subsection of an iterable, such as a string or a list. For example, let’s get the 3 first elements from a list as a slice: This returns the three elements in a list: Generally, the slicing follows this syntax: Where: start is the starting index. Defaults to the first

Python tuple unpacking means pulling values apart from a tuple. For example: This assigns 1 to x, 2 to y, and 3 to z. In Python, unpacking is not limited to tuples only. You can unpack a list or a string with the same syntax. Unpacking is more commonly known as multiple assignment, as it

Learn 10 awesome beginner-friendly Python coding “tricks” with in-depth explanations. The following list is in no particular order. I hope you enjoy it! 1. Swap Two Variables without a Third In Python, it is possible to swap two variables without a third one: Explanation The above “trick” to swap two variables is not a trick at

In Python, None is an object implemented by the NoneType class. In Python, None represents an absence of a value in a variable. In Python, None is what would be a null in other commonly used programming languages. Unlike the null in the other languages, Python’s None has nothing to do with values 0 or

In Python, the “at symbol” (@) is used in two different contexts: Decorators. Matrix multiplication. Let’s take a more in-depth look at both of these. Decorators in Python The main use case of the symbol @ in Python is decorators. In Python, a decorator is a function that extends the functionality of an existing function or class.