very newbie question

[ron nixon]

I've got a script called snakes saved to my c: drive and I want to run
it from IDLE. By when I do file open and run script, I get an invalid
syntax message. Likewise if I write the script in IDLE and hit "run
script" it get a message saying that says "the buffer for Python Shell
is not saved. Please save it first." Soooo. With all that being said.
How do I save a script and then get python to execute it from IDLE(and
where in the documentation is this?)

Thanks in advance