----- Original Message -----
> Why to append standard error to standard output. It is not right in
> semantics.
I think test-api should replace all commands modules with utils.exec_cmd.
For commands modules, it merged stderr with stdout:
def getstatusoutput(cmd):
"""Return (status, output) of executing cmd in a shell."""
import os
pipe = os.popen('{ ' + cmd + '; } 2>&1', 'r')
So for compatible, utils.exec_cmd should do the same thing.
> In order to get the standard error if executing command failed, the
> following change is enough:
>
> if out == None:
> # Prevent splitlines() from barfing later on
> out = ""
> + if p.returncode:
> + out = err
> return (p.returncode, out.splitlines())
>
>
> Guannan
>
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