power off switch / accessing GPIOs

[Tim Curtis]

Python 3 is in 7.6.1

Code:

pi@rp1:~ $ /usr/bin/env python3
Python 3.7.3 (default, Jul 25 2020, 13:03:44) 
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 

pi@rp1:~ $ which python3
/usr/bin/python3