Get subprocess error output from shell command

[Gnarlodious]

On Apr 2, 9:29 pm, Chris Rebert wrote:

> if proc.returncode: # non-zero exit status, indicating error
>     print("Encountered error:")
>     print(error_output) # output the error message
>

Like in my previous post, this only outputs an empty string.
Apparently plutil doesn't communicate well.

-- Gnarlie