Import error message

The error is that the ThunderBorg.py script cannot be found. There are three simple ways to fix this.

1. Change to the ThunderBorg directory

This is the solution you are already trying, the problem is that the path needs to be the ~/thunderborg directory itself.

import os
os.chdir('/home/pi/thunderborg')
import ThunderBorg

Pro: This is probably the simplest solution.
Con: If you need to import other scripts it can get confusing.

2. Add the ThunderBorg directory to the search path

This is my usual choice as I sometimes need the current directory to stay where it is. You can also add multiple directories this way for different imports.

import sys
sys.path.insert(0, "/home/pi/thunderborg")
import ThunderBorg

Pro: Does not change the directory.
Con: The path order matters if you have the same script name in different directories.

3. Copy the ThunderBorg.py script into the same directory

This is the easiest to understand. Simply copy the ThunderBorg.py script into the same directory as the script you are writing.

Pro: No code changes required, just import normally.
Con: There are multiple stored copies of the same script.