To update a global variable in one line of Python, retrieve the global variable dictionary with the globals() function, and access the variable by passing the variable name as a string key such as globals()[‘variable’]. Then overwrite the global variable using the equal symbol, for example in globals()[‘variable’] = 42 to overwrite the variable with … Read more
Summary: To split a string and keep the delimiters/separators you can use one of the following methods: Problem Formulation 🔏Problem: Given a string in Python; how to split the string and also keep the separators/delimiter? A sequence of one or more characters used to separate two or more parts of a given string or a … Read more
Wouldn’t reading code be much easier if the author constantly shared their thoughts with you? Commenting is good practice in Python because it helps others (and your future self) understanding your code much better. Writing commented code makes you more productive in the long term! There are two types of comments: one-line comments and multi-line … Read more
When you’re learning and working with Python, you’re going to encounter errors and there’s no getting around that fact. So how do you get around them? It helps to learn about the errors. We’re going to take the opportunity to learn one of them today. What is “Keyboard Interrupt”? This is an error that you’re … Read more
Do you hate those lengthy class definitions with __init__ and too many whitespaces and newlines? Python One-Liners to the rescue! Luckily, you can create classes in a single line—and it can even be Pythonic to do so! Sounds too good to be true? Let’s dive right into it! Problem: How to create a Python class … Read more
In this article, you’ll learn about two variants of this problem. Assign multiple values to multiple variables Assign the same value to multiple variables Let’s have a quick overview of both in our interactive code shell: Exercise: Increase the number of variables to 3 and create a new one-liner! Let’s dive into the two subtopics … Read more
The single line of Python code is more powerful than you may expect. In fact, you can compress whole algorithms in a single line of Python code. In this tutorial, you’ll learn how to use the built-in map() function in Python to one-linerize a critical step that would otherwise take multiple lines of Python code: … Read more
Summary: Python output buffering is the process of storing the output of your code in buffer memory. Once the buffer is full, the output gets displayed on the standard output screen. Buffering is enabled by default and you can use one of the following methods to disable it: Execute the Python code with the -u … Read more
Summary: To get a cron like scheduler in Python you can use one of the following methods: Use schedule module Use APScheduler Use timeloop library Use CronTab module Cron (also called a cron job) is a software utility that helps a user to schedule tasks in Unix-like systems. The tasks in cron are present in … Read more
A docstring describes a module, function, class, or method in plain English to help other coders understand the meaning better. You must define the docstring at the beginning of the module, function, class, or method definition. By doing so, the docstring becomes the __doc__ special attribute of that object. You can access the docstring of … Read more
You may already know about Python’s capability to create a simple web server in a single line of Python code. Old news. Besides, what’s the point of creating a webserver that only runs on your machine? It would be far more interesting to learn how to access existing websites in a single line of code. … Read more
The “hello world program” is used in programming languages to set up a minimal programming environment and execute the first trivial program in it. It helps you get your environment going and take your first steps towards a more complicated program. This short tutorial will show you the fastest possible way to write your first … Read more