Just starting out, allready stuck..

[squenson]

We need to check which version of python you are running. Just type python and let us know what you get as a version (to exit the shell, type exit()).
(I know that you mentioned the python version in your first post, it is just to double-check it...)

Also, verify that there are no "invisible" characters in your hello_word.py file after the last parenthesis. Position your cursor after it and press the Delete key many times to be sure.