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What does it take to implement a chat system in Python?

+1 vote
37 views

I wanted to do a little project for learning Python. I thought a chat system will be good as it isn't something that I have ever done.

I wanted to know what will I need? I think that would require me these

1 learn network/socket programming
2 find a free server to host my chat server
3 GUI development for clients

-I wanted to know whether these are all that I would need or are there more things?
-Will I need to learn a web framework like Django?
-Will I need to learn something for database management like sql for handling people's account names and password?

Is google appengine good for hosting the website or should I look up at django hosting websites?

posted Jul 18, 2013 by anonymous

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1 Answer

+1 vote

This is a "been there, done that" kind of project. You could learn more from reading somebody else is code. What hasn't been done, and this would be very cool, is a chat program that works peer-to-peer with no central server. To do this, you would probably need to know about distributed hash tables and methods of piercing address translation firewalls (think UDP).

First however, I would suggest taking a look at https://jitsi.org/ and see how they do things. You can learn a lot from these people.

answer Jul 18, 2013 by anonymous
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+2 votes

As per my understanding Receive system calls will be a blocking call of the code... it will not go ahead unless it receives the response from client .. my question is how would i set time in that? i want my code should wait only for few seconds then it has to come out from that

+1 vote

I'm using Python 2.7 under Windows and am trying to run a command line program and process the programs output as it is running. A number of web searches have indicated that the following code would work.

import subprocess

p = subprocess.Popen("D:PythonPython27Scriptspip.exe list -o",
 stdout=subprocess.PIPE,
 stderr=subprocess.STDOUT,
 bufsize=1,
 universal_newlines=True,
 shell=False)
for line in p.stdout:
 print line

When I use this code I can see that the Popen works, any code between the Popen and the for will run straight away, but as soon as it gets to the for and tries to read p.stdout the code blocks until the command
line program completes, then all of the lines are returned. Does anyone know how to get the results of the program without it blocking?


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