Appending an asterisk to the end of each line

[Chris Angelico]

On Wed, Jul 6, 2016 at 9:04 AM, Seymore4Head
<Seymore4Head at hotmail.invalid> wrote:
> I am using XP and launching the program from another drive/folder than
> the boot drive.
>
> The program has .py extension and the icon shows it is associated with
> Python.
>
> I tried "start run" and then typed python and it did show the dos box
> with c:\python34/python.exe and the python shell.

Okay. Step 1: Get a better operating system than Windows XP. Either
upgrade to a newer version of Windows, or (my recommended option)
switch to something like Debian Linux.

Step 2, whether or not you do step 1: Become familiar with the command
line. If you're staying with Windows, that means Start, Run, cmd.exe.
Run your program from the terminal, and (this is the most important
part) *copy and paste* its output into your next email asking for
help. My suspicion is that your script is terminating with an
exception somewhere, and you're not seeing it because the Windows
association system gives you a Python that comes up and then
disappears promptly when the program terminates.

Step 3: If the above hasn't trivially solved your problem, now it's
time for actual debugging work. Pepper your code with print() calls,
showing the values of various things, until you figure out what's
going on.

Have fun!

ChrisA