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I'm recently started to learn Twisted framework and now looking for some cheat sheets/reference cards with basic Twisted stuff. Such as deferreds, callbacks, reactor, protocols, factories, transports, so on.
At the moment found nothing neither on http://refcardz.dzone.com/ nor on http://www.cheat-sheets.org/
Any help appreciated.
The closest thing I know of is Everything You Always Wanted to Know About Twisted
It's not really a "cheat-sheet", but it is a concise introduction to most of the basic concepts.
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I want to crawl Indian news websites and their archives (eg. thehindu.com, indianexpress.com and timesofindia.com).
I have heard of boilerplate library in Java used to extract content. But is there any library in python to do this and how t do this?
If this is a repeat question, please help me to point out.
Scrapy is a popular scraping framework for Python
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What are various tools to convert Python scripts to C. I am mainly looking at speed of such tools/converter/interpreter.
Thanks,
-J
cython is what you are looking for http://www.cython.org/
Mark Dufour's Shedskin is an interesting alternative, that can parse a large subset of python, and translate it to C++. The project also has a really good blog
You could use Pypy to translate a subset of Python language to C.
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I'm looking hard but I cannot find any XMPP server in python with the following features:
using epoll, just like http://www.gevent.org/
supporting BOSH
modular design
use little RAM/CPU for up to 1000 users
more important than the previous requirement: the CPU/RAM usage must be predictable
Prosody looks quite good feature-wise, but I don't know how many users it can support simultaneously and how it is performance-wise.
Could someone give me an idea?
For a rough idea of how Prosody is performance-wise, see this post on their ML. https://groups.google.com/d/topic/prosody-users/SlXpfwJfgY4/discussion
xmpp.org uses Prosody, any other questions? :P
btw, if you want to toy with it a little, you can always run prosody using luajit (didn't test that myself, but I'm fairly sure it would work). Expect at least 2-4x faster execution.
Look # ejabberd too.
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I would like to code something with augmented reality, do you know any python library to play with?
OpenCV would be the closest match I can think of ...
ARToolKit apparently has python bindings:
http://www.hitlabnz.org/forum/showthread.php?548-PyARTK-0.1-Python-binding-for-ARToolKit-released
I've not experimented, ymmv.
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An ARC file is a lossless data-compression format.
http://en.wikipedia.org/wiki/ARC_%28file_format%29
I've tried googling some, but the Python ARC readers are 404 errors, or cannot be found.
Anyone know of any library I can use?
If you are able to use SWIG then possibly the ARC source code from FreeBSD could be used. Or you could have a look at the source, and perhaps reimplement it in Python. I remember ARC and it did not last very long as a popular tool so I suspect that it is not overly complex.