Python, for all its power and popularity, has long lacked a form of flow control found in other languages—a way to take a value and match it elegantly against one of a number of possible conditions.

Learn how Python's dictionary data structure works as a powerful and versatile way to store and retrieve objects and data in your applications. Programming languages all come with a variety of data ...

Python in Excel makes data cleaning easier than formulas ever did—no coding background required.