On Sun, May 26, 2013 at 4:58 PM, Luca Cerone <luca.cer...@gmail.com> wrote: <snip> > Hi Chris, first of all thanks for the help. Unfortunately I can't provide the > actual commands because are tools that are not publicly available. > I think I get the tokenization right, though.. the problem is not that the > programs don't run.. it is just that sometimes I get that error.. > > Just to be clear I run the process like: > > p = subprocess.Popen(['program1','--opt1','val1',...'--optn','valn'], ... the > rest) > > which I think is the right way to pass arguments (it works fine for other > commands).. <snip> >> You may also want to provide /dev/null as p1's stdin, out of an abundance of >> caution. > > I tried to redirect the output to /dev/null using the Popen argument: > 'stdin = os.path.devnull' (having imported os of course).. > But this seemed to cause even more troubles...
That's because stdin/stdout/stderr take file descriptors or file objects, not path strings. Cheers, Chris -- http://mail.python.org/mailman/listinfo/python-list
