I want to update to the latest version of Python 3.6.6 on my Raspberry Pi 3B. I do not want my first go with 3.7 to be on a Pi! This Pi will be used in the basement as part of an OpenCV project.
Replace 3.6.2 with 3.6.6 and you are off to the races!
This guide explain with steps how to install python 3.6.2 on raspberrypi