Am new to linux and i dont have any gui installed. I would like 2 know which website 2 go 2, 2 download the gui and how do i install it after downloading. And how do i run installed programs such as python?
I'm assuming that you have no operating system installed yet. There are many versions of Linux available to you, you can check out some of the systems at distrowatch.com On the right column there you'll see links to the more popular like Ubuntu, Mint and Debian. I use Ubuntu myself.
Most installed programs run like in windows, you click on them. Out of the hundreds of programs on my system I use the command line to start maybe 5 but then I have some strange things. To answer your specific question, if there is no launcher which is uncommon to say the least, and you need to run a python program you use the command " py mypythonprogam.py" from a terminal.
Download and follow the install instructions either from a dvd or a flash disk and come back with your questions. Ubuntu has a repository of tens of thousands of programs that you can install by just choosing them from the installer.