This is a small code that can help you in downloading any YouTube video of your choice in Python using the Pytube library.
Before running the code, make sure you have installed "Pytube" module. You can do it by typing "pip install pytube" or "pip3 install pytube" in command line. Then just run the code, paste the link of your choice, specify a path to where you want to download the video and choose a name for your file. After that you can download the video. If you know how to make a GUI or a dialogue box, you can make an application and you can use this code for downloading of the video there as well.