In the file /docs/other-setups/windows.rst, section, "Environment Shakeout", around line 255, there is reference to the file \python-minecraft\hello_world.py which no longer exists. Looking at the version history (https://github.com/CoderDojoTC/python-minecraft/tree/v2015-01-24), this file used to exist in this folder. It seems as if these files have been moved to python-minecraft/classroom-code/examples/ and converted from .py to ipynb files.
A suggestion is to either create a folder python-minecraft/at-home-code/examples/ and place the .py files in this new folder, or add the .py files to the existing python-minecraft/classroom-code/examples/ folder.