15 Oct
2010
15 Oct
'10
9:02 a.m.
On Fri, Oct 15, 2010 at 12:04 AM, Patrick Shirkey
<pshirkey(a)boosthardware.com> wrote:
In a bit of a time crunch. Can anyone tell me how to
do this properly?
I would like to have a threaded timer to run "cmd" after 5 seconds.
However cmd is normally triggered like this:
os.system(cmd)
But there seems to be an issue with calling os.system(cmd) from
subprocess.popen.
...
t = threading.Timer(5.0, self.do_popen(cmd))
This line seems to be your problem. You need to give threading.Timer
the function to be called, but instead your *calling* do_popen
immediately. After five seconds the timer then tries to call the
return value of do_popen, which is None.
One possible solution would be:
t = threading.Timer(5.0, functools.partial(self.do_popen, cmd))
Dominic