[BangPypers] Socket Error : Address still in use (Conveting from python 1.5.2 to 2.7.1)
Hello there, I am almost done converting my application from python 1.5.2 to python 2.7.1 on a HP-UX 11 Itanium box. My application server will set a listening port, accepting request from multiple clients. The code just works fine in the old python environment. E.g. when I do a lsof | grep listening port I got the following. python 62602 genasm 5u IPv4 0x7350d1f0 0t0 TCP zmy02aix02:12121 (LISTEN) python 62602 genasm 6u IPv4 0x744fb5f0 0t0 TCP zmy02aix02:12121-zmy02aix02-bkup:51867 (ESTABLISHED) python 62602 genasm 7u IPv4 0x75b959f0 0t0 TCP zmy02aix02:12121-zmy02aix02-bkup:51869 (ESTABLISHED) python 62602 genasm 8u IPv4 0x75a559f0 0t0 TCP zmy02aix02:12121-zmy02aix02-bkup:51873 (ESTABLISHED) Strange things happened in python 2.7.1. Without modifying the code of how the socket was created and how the TCP/IP address was bound to the socket, it seems that every other processes that I run, which supposed to connect to the listening port as a client program, also appears to be holding a listening port. This is weird. Anyone has encountered this before especially when you were converting from an old python to a new python? Like you can see below there are 5 processes hosting the listening port of 18882. $ lsof -i tcp | grep 18882 python 10598 r32813 3u IPv4 0xe0050b73e400 0t0 TCP zmy02hp3.ap.freescale.net:18882 (LISTEN) python 18181 r32813 3u IPv4 0xe0050b73e400 0t0 TCP zmy02hp3.ap.freescale.net:18882 (LISTEN) python 20025 r32813 3u IPv4 0xe0050b73e400 0t0 TCP zmy02hp3.ap.freescale.net:18882 (LISTEN) python 26295 r32813 3u IPv4 0xe0050b73e400 0t0 TCP zmy02hp3.ap.freescale.net:18882 (LISTEN) python 26428 r32813 3u IPv4 0xe0050b73e400 0t0 TCP zmy02hp3.ap.freescale.net:18882 (LISTEN) Since only one of them is the genuine process holding the port, I need to kill off the rest of them if I need to restart the process which is the legitimate owner of the listening port. It should not work this way. Here is the code of the application process that hosts the listening port. self.sock = socket.socket( socket.AF_INET, socket.SOCK_STREAM ) self.sock.setsockopt( socket.SOL_SOCKET, socket.SO_REUSEADDR, 1 ) self.sock.setsockopt( socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1 self.sock.setsockopt( socket.IPPROTO_TCP, _TCP_NODELAY, 1 ) self.sock.bind( self.server_address ) Here is the client code that does the connection. self.sock = socket.socket( socket.AF_INET, socket.SOCK_STREAM ) self.sock.setsockopt( socket.IPPROTO_TCP, _TCP_NODELAY, 1 ) self.sock.connect( self.server_address ) Hope to hear something from the community. Regards, Wah Meng ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Since there's still time for the meetup, I'd like to start a thread to discuss if anyone has ideas for a presentation. I can talk about how to start a python project. This includes: * writing setup.py, Makefile, Readme * setting up virtualenv for the project * setting up sphinx documentation and hosting it on readthedocs.org * writing tests and setting up continuous integration using http://travis-ci.org/ * Making releases and uploading the packages to pypi Anand ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
I myself could speak about either pygame (game development in general) or on the Python C API. -- ~noufal http://nibrahim.net.in I distinctly remember forgetting that. -Clara Barton ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Can I vote ? +1 for pygame. Would also like to hear experiences of people who went to Pycon this month. -- Vinayak On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahim nou...@nibrahim.net.in wrote: I myself could speak about either pygame (game development in general) or on the Python C API. -- ~noufal http://nibrahim.net.in I distinctly remember forgetting that. -Clara Barton ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Hi For past two months I am trying to attend bangpypers but unfortunately I was unable to attend. But this time I will make it, mean while how long does meet up lasts? If so I can also give some basic demo on Flask, requests, twitter live streaming etc . . . From past two weeks observation can any one share the audience are beginners, intermediate or advanced python users. In case time is constraint I will not present this time, next time I can show demo. Probably we can watch any one pycon video(Guido's keynote or any other video). +1 for Anand's topic. Can I vote ? +1 for pygame. Would also like to hear experiences of people who went to Pycon this month. -- Vinayak On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahimnou...@nibrahim.net.in wrote: I myself could speak about either pygame (game development in general) or on the Python C API. -- ~noufal http://nibrahim.net.in I distinctly remember forgetting that. -Clara Barton ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Hi, On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahim nou...@nibrahim.net.in wrote: I myself could speak about either pygame (game development in general) or on the Python C API. +1 for both the topics - Python project creation and pygame. Anand, it would be great if you could demo it with a real world project, not a hello world project :) But anything would be fine. Thanks -- Thank you Balachandran Sivakumar Arise Awake and stop not till the goal is reached. - Swami Vivekananda Mail: benignb...@gmail.com Blog: http://benignbala.wordpress.com/ ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Wow amazing topics this time. +1 - anand +1 - Python C API +1 - PyCon +1 - Flask/Werkzeug or CherryPy?? @krace I'm a student having only a few project experiences with Python. As long as you dont direc From: benignb...@gmail.com Date: Tue, 27 Mar 2012 22:02:40 +0530 To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi, On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahim nou...@nibrahim.net.in wrote: I myself could speak about either pygame (game development in general) or on the Python C API. +1 for both the topics - Python project creation and pygame. Anand, it would be great if you could demo it with a real world project, not a hello world project :) But anything would be fine. Thanks -- Thank you Balachandran Sivakumar Arise Awake and stop not till the goal is reached. - Swami Vivekananda Mail: benignb...@gmail.com Blog: http://benignbala.wordpress.com/ ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Hi Wow amazing topics this time. +1 - anand +1 - Python C API +1 - PyCon +1 - Flask/Werkzeug or CherryPy?? @krace I'm a student having only a few project experiences with Python. As long as you dont direc I will make sure, I keep things very simple. @arjun: `As long as you dont direc` I din get this. From: benignb...@gmail.com Date: Tue, 27 Mar 2012 22:02:40 +0530 To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi, On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahimnou...@nibrahim.net.in wrote: I myself could speak about either pygame (game development in general) or on the Python C API. +1 for both the topics - Python project creation and pygame. Anand, it would be great if you could demo it with a real world project, not a hello world project :) But anything would be fine. Thanks -- Thank you Balachandran Sivakumar Arise Awake and stop not till the goal is reached. - Swami Vivekananda Mail: benignb...@gmail.com Blog: http://benignbala.wordpress.com/ ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
@krace I'm a student having only a few project experiences with Python. As long as you dont directly go advanced, I guess I can follow. Sorry for the spamming guys. Date: Tue, 27 Mar 2012 23:04:04 +0530 From: kracethekingma...@gmail.com To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi Wow amazing topics this time. +1 - anand +1 - Python C API +1 - PyCon +1 - Flask/Werkzeug or CherryPy?? @krace I'm a student having only a few project experiences with Python. As long as you dont direc I will make sure, I keep things very simple. @arjun: `As long as you dont direc` I din get this. From: benignb...@gmail.com Date: Tue, 27 Mar 2012 22:02:40 +0530 To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi, On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahimnou...@nibrahim.net.in wrote: I myself could speak about either pygame (game development in general) or on the Python C API. +1 for both the topics - Python project creation and pygame. Anand, it would be great if you could demo it with a real world project, not a hello world project :) But anything would be fine. Thanks -- Thank you Balachandran Sivakumar Arise Awake and stop not till the goal is reached. - Swami Vivekananda Mail: benignb...@gmail.com Blog: http://benignbala.wordpress.com/ ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Hi @krace I'm a student having only a few project experiences with Python. As long as you dont directly go advanced, I guess I can follow. Yes, I will make things simpler. Sorry for the spamming guys. Date: Tue, 27 Mar 2012 23:04:04 +0530 From: kracethekingma...@gmail.com To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi Wow amazing topics this time. +1 - anand +1 - Python C API +1 - PyCon +1 - Flask/Werkzeug or CherryPy?? @krace I'm a student having only a few project experiences with Python. As long as you dont direc I will make sure, I keep things very simple. @arjun: `As long as you dont direc` I din get this. From: benignb...@gmail.com Date: Tue, 27 Mar 2012 22:02:40 +0530 To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi, On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahimnou...@nibrahim.net.in wrote: I myself could speak about either pygame (game development in general) or on the Python C API. +1 for both the topics - Python project creation and pygame. Anand, it would be great if you could demo it with a real world project, not a hello world project :) But anything would be fine. Thanks -- Thank you Balachandran Sivakumar Arise Awake and stop not till the goal is reached. - Swami Vivekananda Mail: benignb...@gmail.com Blog: http://benignbala.wordpress.com/ ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Hi, I can give an introduction to ZeroMQ asynchronous messaging library if any one is interested :) On Tue, Mar 27, 2012 at 11:09 PM, kracethekingmaker kracethekingma...@gmail.com wrote: Hi @krace I'm a student having only a few project experiences with Python. As long as you dont directly go advanced, I guess I can follow. Yes, I will make things simpler. Sorry for the spamming guys. Date: Tue, 27 Mar 2012 23:04:04 +0530 From: kracethekingma...@gmail.com To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi Wow amazing topics this time. +1 - anand +1 - Python C API +1 - PyCon +1 - Flask/Werkzeug or CherryPy?? @krace I'm a student having only a few project experiences with Python. As long as you dont direc I will make sure, I keep things very simple. @arjun: `As long as you dont direc` I din get this. From: benignb...@gmail.com Date: Tue, 27 Mar 2012 22:02:40 +0530 To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi, On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahimnou...@nibrahim.net.in ** wrote: I myself could speak about either pygame (game development in general) or on the Python C API. +1 for both the topics - Python project creation and pygame. Anand, it would be great if you could demo it with a real world project, not a hello world project :) But anything would be fine. Thanks -- Thank you Balachandran Sivakumar Arise Awake and stop not till the goal is reached. - Swami Vivekananda Mail: benignb...@gmail.com Blog: http://benignbala.wordpress.**com/http://benignbala.wordpress.com/ __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers -- Regards, Yeswanth http://advencode.wordpress.com/ ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Hi I can give an introduction to ZeroMQ asynchronous messaging library if any one is interested :) I thought about it but, felt advanced, so ignored, love to hear :) On Tue, Mar 27, 2012 at 11:09 PM, kracethekingmaker kracethekingma...@gmail.com wrote: Hi @krace I'm a student having only a few project experiences with Python. As long as you dont directly go advanced, I guess I can follow. Yes, I will make things simpler. Sorry for the spamming guys. Date: Tue, 27 Mar 2012 23:04:04 +0530 From: kracethekingma...@gmail.com To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi Wow amazing topics this time. +1 - anand +1 - Python C API +1 - PyCon +1 - Flask/Werkzeug or CherryPy?? @krace I'm a student having only a few project experiences with Python. As long as you dont direc I will make sure, I keep things very simple. @arjun: `As long as you dont direc` I din get this. From: benignb...@gmail.com Date: Tue, 27 Mar 2012 22:02:40 +0530 To: bangpypers@python.org Subject: Re: [BangPypers] April meetup Hi, On Tue, Mar 27, 2012 at 7:54 PM, Noufal Ibrahimnou...@nibrahim.net.in **wrote: I myself could speak about either pygame (game development in general) or on the Python C API. +1 for both the topics - Python project creation and pygame. Anand, it would be great if you could demo it with a real world project, not a hello world project :) But anything would be fine. Thanks -- Thank you Balachandran Sivakumar Arise Awake and stop not till the goal is reached. - Swami Vivekananda Mail: benignb...@gmail.com Blog: http://benignbala.wordpress.**com/http://benignbala.wordpress.com/ __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Vinayak Hegde vinay...@gmail.com writes: Can I vote ? +1 for pygame. Would also like to hear experiences of people who went to Pycon this month. [...] I think a lot of people are interested in Anand's topic. Perhaps we should prioritise that and if there's time, I can speak a little about PyGame. -- ~noufal http://nibrahim.net.in Our similarities are different. -Dale Berra, son of Yogi ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
Yes, +1 . Vinayak Hegdevinay...@gmail.com writes: Can I vote ? +1 for pygame. Would also like to hear experiences of people who went to Pycon this month. [...] I think a lot of people are interested in Anand's topic. Perhaps we should prioritise that and if there's time, I can speak a little about PyGame. -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
Re: [BangPypers] April meetup
+1 - Anand On Wed, Mar 28, 2012 at 12:03 AM, kracethekingmaker kracethekingma...@gmail.com wrote: Yes, +1 . Vinayak Hegdevinay...@gmail.com writes: Can I vote ? +1 for pygame. Would also like to hear experiences of people who went to Pycon this month. [...] I think a lot of people are interested in Anand's topic. Perhaps we should prioritise that and if there's time, I can speak a little about PyGame. -- Talk is cheap, show me the code -- Linus Torvalds Regards Kracekumar.R www.kracekumar.com __**_ BangPypers mailing list BangPypers@python.org http://mail.python.org/**mailman/listinfo/bangpypershttp://mail.python.org/mailman/listinfo/bangpypers ___ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
