Introduction Variables act as a container to store data. A developer can use type hints when creating variables or passing arguments, however, that’s an optional feature in Python, and many codebases, old and new, are yet to have them. It’s more common for a variable in Python to have no information of the type being stored. If we had code that needed a dictionary but lacked type hints, how can we avoid errors if the variable used is not a […]

Introduction A dictionary in Python is a collection of items that store data as key-value pairs. We can access and manipulate dictionary items based on their key. Dictionaries are mutable and allow us to add new items to them. The quickest way to add a single item to a dictionary is by using referencing a dictionary’s index with a new key and assigning a value. For example, we add a new key-value pair like this: snacks[‘chocolate’] = 5 Python allows […]

Introduction In this article, we’ll take a look at how to remove keys from Python dictionaries. This can be done with the pop() function, the del keyword, and with dict comprehensions. Remove a Key Using pop(key,d) The pop(key, d) function removes a key from a dictionary and returns its value. It takes two arguments, the key is removed and the optional value to return if the key isn’t found. Here’s an example of popping an element with only the required […]