Working with files in Python is pretty easy. But there’s a common mistake that can sneak into your code. Not closing the file ...

Dan Pelzer made it his personal goal to read at least 100 pages every day, and he kept a list of every book he’d ever read ...

Map is a common way to transform lists in most programming languages. In Python, map is a function that loops over a list and applies a function (that you provide) to each item. Your function receives ...