A leap year is a year that is divisible by 4. The exception is the years that are divisible by 100 but not by 400. This comprehensive guide teaches you how to check if a year is leap year in Python. You will also learn how to find the next leap year given the current …
Python Program to Check Leap Year (Theory & Example Use) Read More »
In Python, you can have if-else statements on one line. To write an if-else statement on one line, follow the conditional expression syntax: For example: This is handy with short if-else statements because it allows you to save lines of code while preserving code quality. But do not overuse it. Turning longer if-else statements into …
Python decorators provide a readable way to extend the behavior of a function, method, or class. Decorating a function in Python follows this syntax: Here the guard_zero decorator updates the behavior of divide() function to make sure y is not 0 when dividing. How to Use Decorators in Python The best way to demonstrate using …
Decorators in Python: A Complete Guide (with Examples) Read More »
In Python, the built-in str() and repr() functions both produce a textual representation of an object. Output: The difference between str() and repr() is: The str() function returns a user-friendly description of an object. The repr() method returns a developer-friendly string representation of an object. In this guide, you learn: What are the functions str() …
Leaving code comments might sometimes help clarify your code. There are 3 unofficial comment types in Python. A “block comment”: An “inline comment”: A “multi-line” comment that misuses a docstring: Commenting Code in Python To add a comment in Python, use the hashtag operator # before starting to type the comment. Before digging into the …
To read a text file in Python: For example, let’s read a text file called example.txt from the same folder of the code file: Now the lines variable stores all the lines from example.txt as a list of strings. This is the quick answer. To learn more details about reading files in Python, please read …
In Python, you can write to a text file by following these three steps: You can skip the last step by using the with statement. For example: This piece of code creates a new file called example.txt and writes “Hello World” into it. In this guide, you are going to learn the basics of writing …
To pretty-print JSON in Python: For example: Where: Here is an illustration of what pretty printing does to JSON objects: In this guide, you learn why JSON is usually unreadable and how to use pretty printing to fix the problem. You will also see some common examples when pretty-printing. Before learning how to pretty-print JSON, …
Formatted string or F-string in Python makes it possible to insert variables into strings in a handy and readable way. For example: Output: Let’s compare this to the old-school approach using the format() method: The f-string is more convenient especially when the number of embedded variables is big. This is a comprehensive guide to using …
F-Strings in Python: A Complete Guide (with Examples) Read More »
Hi, my name is Artturi Jalli! I’m the author and owner of codingem.com—a tech blog with coding tutorials and software reviews. ✏️ At the beginning of 2021, I started writing technical articles on the popular platform Medium.com. I was quickly selected as one of the top writers on the platform. I received 300k+ reads in …
