Solved, turned out I needed to escape the slashes in the filepath.

On Wed, May 15, 2013 at 12:33 PM, Louai Abu-Osba <me@louai.org> wrote:
> I'm trying to execute an AE script from Python and it doesn't appear
> that the script argument is passing correctly. I'm using Windows 7
> with Python 2.7.
>
> If I use cmd.exe or powershell and try "afterfx -r
> D:\pipeline\tests\tactic_ae\hello.jsx" I get my "hello world" alert in
> the AE UI.
>
> However, if I try executing in Python:
> subprocess.call(["afterfx","-r","D:\pipeline\tests\tactic_ae\hello.jsx"])
> The AE UI takes focus but no alert appears. The strange part is if I
> try to do something invalid like remove the -r flag:
> subprocess.call(["afterfx","D:\pipeline\tests\tactic_ae\hello.jsx"])
> I get an AE error: After Error Can't import file "hello.jsx":
> unsupported filetype or extension
>
> Anyone know why the alert won't display when run from Python? Thanks!
>
> -louai
>
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