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

We’re going to use Python 3, so start by installing Python 3 on your system. We’ll also need pip3. On Debian, I install them both by entering the command, sudo apt-get install python3 python3-pip.

In Python, you’ll always need to call a function like this: callingthisfunction(), and not like this: notcallingthisfunction, whether there are any arguments or not.

Python 3.13.0 (tags/v3. 13.0: 60403 a5, Oct 7 2024, 09: 38: 07) [MSC v.1941 64 bit (AMD64)] on win32 Run py -3.13t, and you’ll launch the free-threaded build: Python 3.13.0 experimental free ...