Hey Chris, Thanks for your quick reply! I switched my code to->
proc = subprocess.Popen(['/usr/local/bin/python', 'tests.py'], stdout=subprocess.PIPE) out, err = proc.communicate() print out proc.stdout.close() It still dead locked. Interestingly enough When I did a #python tests.py on the command line even that was taking awhile to print out to the command line so I decided to restart my webserver... wow from mucking before something must have been running in the background still. I got the script down to 2 seconds or so... Now it still works but faster when I do #python main.py it generates all the text to the command line but the website still hangs when I go to http://webserver/main.py... I am not sure what is going wrong... no error in the /var/log except for the eventual timeout after a couple minutes goes by. -S -----Original Message----- From: ch...@rebertia.com [mailto:ch...@rebertia.com] On Behalf Of Chris Rebert Sent: Friday, March 02, 2012 3:23 PM To: Sean Cavanaugh (scavanau) Cc: python-list@python.org Subject: Re: Python - CGI-BIN - Apache Timeout Problem On Fri, Mar 2, 2012 at 12:09 PM, Sean Cavanaugh (scavanau) <scava...@cisco.com> wrote: <snip> > THE PROBLEM: > > When I execute the scripts from the command line (#python main.py) it > generates it fine (albeit slowly), it prints all the html code out including > the script. The ‘core’ part of the script dumbed down to the lowest level > is-> > > proc = subprocess.Popen(['/usr/local/bin/python', 'tests.py'], > stdout=subprocess.PIPE) > output = proc.stdout.read() Note the red warning box about possible deadlock with .stdout.read() and friends: http://docs.python.org/library/subprocess.html#popen-objects > print output > proc.stdout.close() As the docs advise, try using .communicate() [http://docs.python.org/library/subprocess.html#subprocess.Popen.communicate ] instead: proc = subprocess.Popen(…) out, err = proc.communicate() print out > When I open main.py and execute the script it just hangs… it seems to > execute the script (I see pcap fires on the interface that I am testing on > the firewall) but its not executing correctly… or loading the entire > webpage…the webpage keeps chugging along and eventually gives me an error > timeout. The hanging makes me suspect that the aforementioned deadlock is occurring. Cheers, Chris -- http://chrisrebert.com -- http://mail.python.org/mailman/listinfo/python-list
