Hello - as of January 1, 2020, Python 2.x is no longer officially supported. This folder on the Python for Everybody web site is old Python 2.x versions of some of the materials. You should visit the Python 3.x versions of these materials.
If you want to see the Python 2.x lectures, will be available in the Python for Everybody github repo:
This Python 2.x material will be deleted from the github repository on or after January 1, 2021.