Python to Python communication
Hello, I have a group of Python programms which I want to teach to "talk to each other". All run on Windows, on the same computer or in the same intranet. Security of communication is not an issue (encryption on lower level protocols / intra computer communication). Partially these programs are using wxPython. It is important that the communcation is "only an added feature", I am not willing to spend big memory / computing ressources on it. So I googled and came up with at least the following opportunities: XMLRPC - quite "simple" to implement within python, contained in my favourite web framework Quixote / medusa SOAP - around the same amount of work as XMLRPC ----> these two are fully buzzword compatible to enterprise communication needs. But are they really lightwight and needed? Banana - within the twisted framework. Is described as high performance with very litte ressources. From my scanning of twisted it is meanwhile possible to integrate it within wxPython and you only need to sell the soul of your firstborn for it; but I got the impression twisted rather needs a total commitment than a "I just need some banana, man" pyro - Python Remote Objects. Irmen de Jong has a "get Firefox" icon on it's page and he plays with the name "pyro", which makes a good impression. It looks rather "ripe", but: he is talking about "pyro 4.0" which will be incompatible with pyro 3.4 and a total redesign. That makes me shudder. COM / DCOM. From our favourite software company, available mainly within windows. Wrapped excellently with pywin32 ... but needs some seriuos type-mangeling to get through and around 2 Gig of Browser Cache to read all the MSDN documentation, which is quite C-ish. socket / select. Within the standard lib. Does not look to hard to get to work, working samples included in the nutshell. ---- so, I am stranded ... and ask C.L.P. for recommendations. What library have you used and would recommend? Harald
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hi, > XMLRPC - quite "simple" to implement within python, contained in my > favourite web framework Quixote / medusa > > SOAP - around the same amount of work as XMLRPC > > ----> these two are fully buzzword compatible to enterprise communication > needs. But are they really lightwight and needed? Unless you don't need the connectivity to other non-python apps that depend on using one of them, stay clear of those two. They are pretty slow, primitive in the sense that all they give you is a stateless C-api-like calls and by far not as mature as say corba. And last time I checked, the SOAP-support in python was far from beeing complete. And that checking of mine hasn't been too long ago. > > Banana - within the twisted framework. Is described as high performance > with very litte ressources. From my scanning of twisted it is meanwhile > possible to integrate it within wxPython and you only need to sell the > soul of your firstborn for it; but I got the impression twisted rather > needs a total commitment than a "I just need some banana, man" > pyro - Python Remote Objects. Irmen de Jong has a "get Firefox" icon on > it's page and he plays with the name "pyro", which makes a good > impression. It looks rather "ripe", but: he is talking about "pyro 4.0" > which will be incompatible with pyro 3.4 and a total redesign. That makes > me shudder. Don't used those two, but if I had a similar situation to yours (namely no non-python-apps), I'd certainly give pyro a try. > COM / DCOM. From our favourite software company, available mainly within > windows. Wrapped excellently with pywin32 ... but needs some seriuos > type-mangeling to get through and around 2 Gig of Browser Cache to read > all the MSDN documentation, which is quite C-ish. I use Linux, so I won't comment on that. > socket / select. Within the standard lib. Does not look to hard to get to > work, working samples included in the nutshell. Been down that road - but while its quick to start, it nearly as fast gets tedious as your requirements develop - usually, you end up with your own xmlrpc-style implementation. Better skip that. I personally have very good expiriences with corba - omniORBpy, to be precise. Don't know how well that runs on windows, though. But on *nix, it certainly saved my day more than once. Regards, Diez
deets.nospaaamOn Mon, 11 Oct 2004 12:40:07 +0000 (UTC), Harald Massa <cpl.19.ghum@spamgourmet.com> wrote: > Hello, > > I have a group of Python programms which I want to teach to "talk to each > other". > > All run on Windows, on the same computer or in the same intranet. > Security of communication is not an issue (encryption on lower level > protocols / intra computer communication). Partially these programs are > using wxPython. > > It is important that the communcation is "only an added feature", I am > not willing to spend big memory / computing ressources on it. > [SNIP] > > pyro - Python Remote Objects. Irmen de Jong has a "get Firefox" icon on > it's page and he plays with the name "pyro", which makes a good > impression. It looks rather "ripe", but: he is talking about "pyro 4.0" > which will be incompatible with pyro 3.4 and a total redesign. That makes > me shudder. > [SNIP] > Harald Harald, I only have experience with Pyro, so am biased, but from your rather sketchy description I think it would have the smallest impact (in terms of existing code re-work) as it can simply be bolted on with the inclusion of a couple of extra classes. At least that was my experience when I needed to get a couple of python applications talking... Just my tupence worth :-) Martin -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/
mfranklin1Am Mon, 11 Oct 2004 12:40:07 +0000 schrieb Harald Massa: > Hello, > > I have a group of Python programms which I want to teach to "talk to each > other". > > All run on Windows, on the same computer or in the same intranet. > Security of communication is not an issue (encryption on lower level > protocols / intra computer communication). Partially these programs are > using wxPython. Hi, Before choosing a framework (pyro, socket or other) you should know how you want to communicate. The easiest is "client-server". There is one server and several clients connect to it. Peer to peer: There is no central server. All can talk to each other. The problem is: How to find the other? If there are on one computer this is easy: Just write files to a directory all processes know. But if you want to talk to other computers, you need to know their IP addresses. For the communication UDP, TCP or HTTP can be used. I would not use HTTP (XMLRPC or SOAP) if you don't need to. UDP is stateless, and can be used for broadcasts. I would use pyro or the socket module. HTH, Thomas
guettliHarald Massa wrote: > I have a group of Python programs which I want > to teach to "talk to each other". > What library have you used and would recommend? I think this depends on what exactly the nature of the "communication".Do you want to send data across or functionality. XMLRPC and pyro are about sharing behavior: functions or methods. If you need to keep a connection open and keep exchanging raw data, then sockets might make more sense. Istvan.
ialbert[Harald Massa] >>I have a group of Python programms which I want to teach to "talk to each >>other". [Thomas Guettler] > Peer to peer: There is no central server. All can talk to each other. > The problem is: How to find the other? If there are on one computer > this is easy: Just write files to a directory all processes know. > But if you want to talk to other computers, you need to know their > IP addresses. Or use a peer-to-peer library that has solved all of those problems already http://www.python.org/other/spread/ regards, -- alan kennedy ------------------------------------------------------ email alan: http://xhaus.com/contact/alan
alanmkHarald Massa wrote: > pyro - Python Remote Objects. Irmen de Jong has a "get Firefox" icon on > it's page and he plays with the name "pyro", which makes a good > impression. Hey, thanks :) > It looks rather "ripe", but: he is talking about "pyro 4.0" > which will be incompatible with pyro 3.4 and a total redesign. That makes > me shudder. Pyro is "ripe"... version 3.0 was released Q4, 2002, so the 3.x versions have been around and in active use for 2 years now. I've been talking about Pyro 4.0 for a long time, but we haven't even begun the real design of it. Partly because of lack of time, partly because Pyro 3.x does its job so well (not my own words). What is it that makes you shudder? If you don't want to switch to Pyro 4.0 once (if??) it is released, just continue using Pyro 3.x. I have no intentions of abandoning the 3.x version: if there is an itch, or a bug, it will be addressed. Regards, Irmen de Jong
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Irmen
10/11/2004 3:42:17 PM
A cheap solution for brainstorming: just output messages to files. p1/001.msg p2/002.msg ...etc... Do some polling to pick up messages. This is very asynchronize and maybe useful for some communication pattern.
aurora00Hello Irmen, > Pyro is "ripe"... version 3.0 was released Q4, 2002, so the 3.x > versions have been around and in active use for 2 years now. That is really good information! Thank you. "active for 2 years" is rather "mature" then only "ripe" :))) > I've been talking about Pyro 4.0 for a long time, but we haven't > even begun the real design of it. > What is it that makes you shudder? Really exactly that :))) I do not know you at all; as I said: your presentation, the documentation and the voices within c.l.p. give me a very positive feeling towards you and your software. So all my "shuddering" comes from this bits of information: "the author of a product thinks to further develop it a complete redesign - not a gradual upgrade - is necessary - so maybe I should wait for that" :)) And the fear, that new ideas will be postponed to the imaginary future version. (I tend do to such things with my own projects, too ) So I will give a very deep look at PyRo and spread... especially because I need that "peer to peer" Thank you all for your support! Harald
Alan Kennedy <alanmk@hotmail.com> wrote in [Thomas Guettler] >> Peer to peer: There is no central server. All can talk to each other. >> The problem is: How to find the other? If there are on one computer Yes, considering my challenge "peer to peer" would fit best > > Or use a peer-to-peer library that has solved all of those problems > already > > http://www.python.org/other/spread/ Yeah, spread looks beautifull from it's documentation. But I failed in setting up ... the python-module is prepared for spread 3.16.4, actual is 3.17.2, which has total different librarynames to start with ... so python setup.py build --compiler=mingw32 fails badly when trying to link. Has someone succeeded in doing a windows build for python 2.3.4 and spread 3.17.2 ??? I would be very thankfull for a howto or a spread.pyd :) Harald
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I am currently using a graphical package which is scripted with (integrated with) python. But I'd like to do my programming in smalltalk, thank you very much. How much of a hassle is it to connect python and smalltalk for this sort of thing? Anyone else done it? Is there a recommended approach? Tips? Suggestions? Pitfalls? (I have interfaced with C in the past, relatively painlessly, so I'm not a total newbie with this sort of thing) Thanks. pineapple.link@yahoo.com escreveu: > I am currently using a graphical package which is scripted with > (integrated with...
Python 3 is killing Python
--047d7bfceec297d37804fa7abe05 Content-Type: text/plain; charset=UTF-8 Somthing I came across in my travels through the ether: https://medium.com/@deliciousrobots/5d2ad703365d/ --047d7bfceec297d37804fa7abe05 Content-Type: text/html; charset=UTF-8 <div dir="ltr"><div>Somthing I came across in my travels through the ether:<br></div><div><br></div><a href="https://medium.com/@deliciousrobots/5d2ad703365d/" target="_blank">https://medium.com/@deliciousrobots/5d2ad703365d/</a><br> </div> ...
Python daemonisation with python-daemon
Hello there, I currently have a little project which involve the writing of a server that launch tasks when requested by the user (through a web interface for instance). I would like to turn my server script into a Linux/Unix daemon (launched at boot time by init, dunno if that matter) using the nice python-daemon package by Ben Finley et al (http://pypi.python.org/pypi/ python-daemon/). This package comes with a class DaemonRunner that seems to fit almost exactly my need but I still have some interrogation. My main class looks like the following: class SIGTERM_Received(Except...
python/python output buffers
Hi, I'm having a little problem while using python mode. I'm used to hit C-c C-c and have a Python Output buffer opened with the output. Now, on Ubuntu 7.10 and 8.04, C-c C-c sends to the Python buffer that is not raised in a window. I need to hit C-c C-z to see it. First of all I'm puzzled and would like to understand what makes the difference. I guess is some defaults that changed in the system configuration. What makes the difference between the two behaviors? Thanks in advance sandro *:-) sandro dentella a �crit : > Hi, > > I'm having a little proble...
Re: Python mascot? How about a Pythoneer?
Stephen Ferg <steve@ferg.org> wrote: > > I've been thinking that a good Python mascot might help in raising > public awareness of Python. > > The problem with a snake as a mascot is that it is not > anthropomorphic > enough....so a snake is out. > > So are Terry Gilliam's wonderful cartoons for the Flying Circus. > While wonderful, I just don't think they lend themselves to > mascot-hood. > > In that spirit, I propose the development of a figure representing > Python -- the Pythoneer. Given that Python users are traditionally ...
Python's and and Pythons or
I really like the logic that Pythons "or" is not only short-circuit but non-typed. So I can say y = override or default and y won't necc be True or False. If override boolean evaluates to True (which, for most classes, means not None) than y will be equal to override. Otherwise it will be equal to default. I have two questions --> Is there a handy name for this type of conditional (something as catchy as "short circuit or") and --> Is there a common idiom for taking advantage of the similar behavior of "and". The "override or def...
python 2 to python 3
I am using Wing101 v.5 and it is using Python2, but I want to make it = use Python3 instead because need Python3 for a uni lab. How do I = change it?= Audrey McFarlane wrote: > I am using Wing101 v.5 and it is using Python2, but I want to make it use > Python3 instead because need Python3 for a uni lab. How do I change it? I'm afraid I don't use Wing so I can't give a good answer, but I googled and found this: http://stackoverflow.com/questions/25318792/how-do-i-configure-wing101-to-run-python-3-3 It's not very helpful, but it might point you in th...
python-daemon for Python v3
Hi Community Is there ported to Python v3 python-daemon package? https://pypi.python.org/pypi/python-daemon/ i am afraid it is not as simple as correction of relative path input feature and except clauses in mentioned package. Thanks Asaf Asaf Las <roegltd@gmail.com> writes: > Is there ported to Python v3 python-daemon package? > > https://pypi.python.org/pypi/python-daemon/ Have a read through the archives for the ‘python-daemon-devel’ discussion forum <URL:http://lists.alioth.debian.org/mailman/listinfo/python-daemon-devel>, where we have ...
Repo/directory names (was Re: Python and IDEs [was Re: Python 3 is killing Python])
On Sun, Jul 20, 2014 at 10:41 AM, Tim Delaney <timothy.c.delaney@gmail.com> wrote: > On 20 July 2014 09:19, Chris Angelico <rosuav@gmail.com> wrote: >> >> That said, though, there are some projects so modest they don't >> require dedicated repositories. I have a repo called "shed" - it's a >> collection of random tools that I've put together, no more logical >> grouping exists. > > Agreed. I have a "utils" one - but I do like "shed" and think I'm going to > rename :) I first met tha...
Python
I have decided to learn a programming language and decided on Python. I have zero exp. in programming and have been told Python is a good starting point. If anyone knows of any web tutorials or books to get me started please reply. Also if you are nice enough to give some friendly advice that would be great too. DrYarbles DrYarbles wrote: > I have decided to learn a programming language and decided on Python. > I have zero exp. in programming and have been told Python is a good > starting point. If anyone knows of any web tutorials or books to get > me started please reply. Also i...
Web resources about - Python to Python communication - comp.lang.python
Communication - Wikipedia, the free encyclopedia) is the activity of conveying information through the exchange of ideas, feelings, intentions, attitudes, expectations, perceptions or commands, ...
VoIP Business, VoIP Technology, VoIP Security - Fierce Enterprise CommunicationsVisit FierceVoIP for the latest updates in VoIP business, unified communications, VoIP technology, mobile VoIP, VoIP security and more VoIP news. ...
Mobile News Online - The UK's leading mobile communication industry news siteThis month, thousands of students will be starting university for the first time. Some will need new phones. Mystery Caller is on the case to ...
Workers at the Communications Department are Australia's unluckiest public servantsThey've lost a quarter of their colleagues, their popular boss and now they are being left behind on pay.
Workers at the Communications Department are Australia's unluckiest public servantsThey've lost a quarter of their colleagues, their popular boss and now they are being left behind on pay.
How to Transcend Workplace Communication in the Emoji Era
... growing rapidly, with users in the hundreds of millions, both at work and play. The popularity of these messaging tools and the visual communication ...
... growing rapidly, with users in the hundreds of millions, both at work and play. The popularity of these messaging tools and the visual communication ...
ICC receives second war crimes communication from Palestinian human rights organizationsICC receives second war crimes communication from Palestinian human rights organizations
Slack for iOS updated for improved team communicationWe here at AppAdvice use Slack for everyday team communication . And according to Slacks second-anniversary blog post , so do at least 2 million ...
How communication tools are being used in the workplaceInteraction at work has been changed in recent years thanks to tools like Slack, but what do IT managers look for when sourcing communication ...
Just how much access does the NSA have to all unencrypted communications?... attacks “would not have happened,” without encryption. So does that mean the NSA can listen to everything except encrypted chats and communications? ...
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