Re: [Tutor] Start multiple threads from Python
On 2013-08-05 12:17, Ryan Waples wrote: > Currently I am calling each analysis program one at a time with > subprocess.call(). This is working without a hitch, but as each analysis > can take a while to run, I want to try to speed things up. I realize I can > start three different python sessions to do this, but that just begs the > question how to do that from python? subprocess.Popen does not block unless you explicitly tell it to (by using communicate()). Perhaps that's what you want. >>> import subprocess >>> x = subprocess.Popen([ "sleep", "60" ]) >>> y = subprocess.Popen([ "sleep", "60" ]) >>> x.pid 3035 >>> y.pid 3036 pgp7_7NXZ0dcW.pgp Description: PGP signature ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Start multiple threads from Python
Thanks, that may be just what I'm looking for. -ryan On Mon, Aug 5, 2013 at 12:26 PM, Chris Down wrote: > On 2013-08-05 12:17, Ryan Waples wrote: > > Currently I am calling each analysis program one at a time with > > subprocess.call(). This is working without a hitch, but as each analysis > > can take a while to run, I want to try to speed things up. I realize I > can > > start three different python sessions to do this, but that just begs the > > question how to do that from python? > > subprocess.Popen does not block unless you explicitly tell it to (by using > communicate()). Perhaps that's what you want. > > >>> import subprocess > >>> x = subprocess.Popen([ "sleep", "60" ]) > >>> y = subprocess.Popen([ "sleep", "60" ]) > >>> x.pid > 3035 > >>> y.pid > 3036 > ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
[Tutor] Start multiple threads from Python
Python 2.7.x on Windows 7. I'm looking for a bit of advice, not sure how to proceed. With Python I am generating a file with a bunch of data in it. I want to analyse the data in this file with three separate programs. Each of these programs is single threaded needs only read access to the data, and they do not depend on each other. Currently I am calling each analysis program one at a time with subprocess.call(). This is working without a hitch, but as each analysis can take a while to run, I want to try to speed things up. I realize I can start three different python sessions to do this, but that just begs the question how to do that from python? How can I start multiple independent programs (as in subprocess.call()) without waiting for them to finish? -Thanks Ryan ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
