On Wed, Nov 30, 2016 at 4:54 PM, duncan smith <duncan@invalid.invalid> wrote: > > Thanks. So something like the following might do the job? > > def _execute(command): > p = subprocess.Popen(command, shell=False, > stdout=subprocess.PIPE, > stderr=subprocess.STDOUT, > close_fds=True) > out_data, err_data = p.communicate() > if err_data: > print err_data
I did not notice it when I sent my first e-mail (but noted it in my second one) that the docstring in to_image is presuming that shell=True. That said, as it seems everybody is at a loss to explain your issue, perhaps there is some oddity, and if everything appears to work with shell=False, it may be worth changing to see if it does fix the problem. With other information since provided, it is unlikely, however. Not specifying the stdin may help, however it will only reduce the file handle count by 1 per call (from 2), so there is probably a root problem that it will not help. I would expect the communicate change to fix the problem, except for your follow-up indicating that you had tried that before without success. Removing the manual stdout.read may fix it, if the problem is due to hanging processes, but again, your follow-up indicates thats not the problem - you should have zombie processes if that were the case. A few new questions that you have not answered (nor have they been asked in this thread): How much memory does your system have? Are you running a 32-bit or 64-bit Python? Is your Python process being run with any additional limitations via system commands (I don't know the command, but I know it exists; similarly, if launched from a third app, it could be placing limits)? Chris -- https://mail.python.org/mailman/listinfo/python-list
