Finish Part 1 - Add hello.py for tests while walking through
 - Add tp.py for the completion of the assignment
 - The tp is working fine and
 - The price is right
Finish Part 1

- Add hello.py for tests while walking through
 - Add tp.py for the completion of the assignment
 - The tp is working fine and
 - The price is right
Merge branch 'feature/chapter1' of https://bitbucket.org/zeitgeist7/sdz-language-python into feature/chapter1
Fix evaluation of user input
- Uses the eval function (if it is a function) to process user input

#still_learning