Blog Posts

The reduce() function from the functools module in Python’s standard library is typically recommended for tasks that cannot be easily expressed using built-in language constructs such as comprehensions (list, set,...

When you first learn about context managers in Python — specifically the with…as… syntax — they’re usually introduced through file handling examples. That’s no surprise, since managing files safely is...

Let’s say we want to write a function that takes two arguments and runs a specific code block inside its body only if neither of the arguments is None. We...

Do you still need [crayon-69e7349136e49460212328-i/] in your code now that dict preserves insertion order? Sometimes, we need dictionary items (key-value pairs) to retain the order in which they were added....

At first, this question might sound contradictory—after all, isn’t the whole point of a constant that its value doesn’t change? In theory, yes. But in practice, things are a bit...

Let’s suppose we have a container object (such as a tuple) whose elements may include other containers, and those containers may themselves contain further containers. The goal is to create...

The [crayon-69e73491371b3273427923-i/] function in the [crayon-69e73491371b6431457264-i/] module is used to create a new callable object from a callable object having multiple parameters by fixing the values of certain parameters, thus...

In addition to comments written above or beside lines of code, as well as documentation strings (docstrings), Python also allows us to use annotations to help improve the understanding of...

There are many ways to solve this problem, but short yet clear one- or two-line solutions are generally preferred. Below, we present two such approaches. What these two techniques have...

You probably know that in Python, everything is an object. Objects have attributes that can represent data (e.g., numbers or strings), but they can also contain executable codes. These are...