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

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 ...

Clicking the up arrow key will show previously typed commands. To clear the output on Console, use Ctrl-L. To clear all global variables and restart the Python interpreter (in general, it is Python 1) ...

lru_cache basics To memoize a function in Python, we can use a utility supplied in Python’s standard library—the functools.lru_cache decorator. lru_cache isn’t hard to use.

The dictionary functions in a similar fashion to the Python list, in that it is a collection of data. In this case, however, dictionaries hold key-value pairs instead of single values.