How do I stop Python IDLE (GUI) from immediately exiting when I enter it?

[John (Z R) L]

Thanks for the replies so far. I do exactly what that website says, and
on the old computer (Windows 98), I click run module and nothing
happens. No text gets displayed on my IDLE. It contained that firewall
message at the top.

Back on the new computer, I deleted all of my .py files and I could go
back to the Python IDLE (GUI) again.

But my problem is with that when I run this module:
"a = 1
print a
a = a + 1
print a
a = a * 2
print a"  ,

the "1
2
4"
appears on the screen, but the program doesn't end. You don't get a new
">>>" like when you finish running all the other modules. So when I
want to run other modules, it says:
 "The Python Shell Window is already executing a command; please wait
until it is finished."

Note that all of my modules don't need any "end" at the last line, nor
do I need "raw_input" to end the program.

How do I make it so this module ends without using the word "end"
because it would exit the entire IDLE Shell?