To get python, open a terminal and enter:
this will check to see if you have the latest version installed and offer you the latest version if you haven't.
sudo apt-get install python
As for the skype issue , the thread you refer to seems to resolve the issue from what I read, so you are on the right track there.
you can copy the code to an empty text file and give it a name ending in .py then run it as a python script.
just move to the directory where you have saved the script using the cd command then enter the name of the script at the command prompt
and it should run ok.