When you’re coding, there’s always a font involved in displaying the text on the screen. Yet, the font that you use is an often-overlooked piece in your programming tool kit. Many operating systems and code editors come with their default monospace fonts that you may end up using. But there are a bunch of technicalities and features to take into consideration when choosing the best font for your daily programming. That’s why it’s worth investigating the requirements that a programming […]

Before you can process your data with Pandas, you need to load it (from disk or remote storage). There are plenty of data formats supported by Pandas, from CSV, to JSON, to Parquet, and many others as well. Which should you use? You don’t want loading the data to be slow, or use lots of memory: that’s pure overhead. Ideally you’d want a file format that’s fast, efficient, small, and broadly supported. You also want to make sure the loaded […]

In Python, a callable is any object that you can call using a pair of parentheses and, optionally, a series of arguments. Functions, classes, and methods are all common examples of callables in Python. Besides these, you can also create custom classes that produce callable instances. To do this, you can add the .__call__() special method to your class. Instances of a class with a .__call__() method behave like functions, providing a flexible and handy way to add functionality to […]