Learn how Mypy's type checking works with functions and generators. In my last two articles I've described some of the ways Mypy, a type checker for Python, can help identify potential problems with ...

There are a few ways to count the number of items in an Excel list, depending on the data you have. One way is using the COUNTIF function.

Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

AWS Lambda Python example Ready to develop your first AWS Lambda function in Python? It really couldn’t be easier. The AWS Management Console’s built-in code editor first loads with a pre-existing, ...

Azure Functions, Microsoft's take on cloud-hosted, serverless, event-driven computing, now officially supports the Python programming language.

When counting unique values in Microsoft Excel, use UNIQUE() as a helper function and avoid more complicated expressions.

Select the cell in which you'd like to display your COUNTIFS output. Within a set of parentheses, you should first include a cell range of where you want the function to look, a comma, and then what ...

COUNT only counts numbers and formulas, while COUNTA counts everything—that is, alpha and numeric characters plus punctuation, symbols, and even spaces. Why use the COUNT function?