This PEP describes a built-package format for Python called "wheel".
A wheel is a ZIP-format archive with a specially formatted file name and the .whl extension. It contains a single distribution nearly as it would be installed according to PEP 376 with a particular installation scheme. Although a specialized installer is recommended, a wheel file may be installed by simply unpacking into site-packages with the standard 'unzip' tool while preserving enough information to spread its contents out onto their final paths at any later time.
This PEP was accepted, and the defined wheel version updated to 1.0, by Nick Coghlan on 16th February, 2013 
Python needs a package format that is easier to install than sdist. Python's sdist packages are defined by and require the distutils and setuptools build systems, running arbitrary code to build-and-install, and re-compile, code just so it can be installed into a new virtualenv. This system of conflating build-install is slow, hard to maintain, and hinders innovation in both build systems and installers.
Wheel attempts to remedy these problems by providing a simpler interface between the build system and the installer. The wheel binary package format frees installers from having to know about the build system, saves time by amortizing compile time over many installations, and removes the need to install a build system in the target environment..."
"RQ (Redis Queue) is a simple Python library for queueing jobs and processing them in the background with workers. It is backed by Redis and it is designed to have a low barrier to entry. It should be integrated in your web stack easily..."
http://python-rq.org "rq-dashboard is a general purpose, lightweight, Flask-based web front-end to monitor your RQ queues, jobs, and workers in realtime..."more ...
"There you can learn Python coding, try yourself in solving various kinds of problems and share your ideas with others. Moreover, you can consider original solutions of other users, exchange opinions and find new friends.
If you are just starting with Python – CheckIO is a great chance for you to learn the basics and get a rich practice in solving different tasks. If you’re an experienced coder, here you’ll find an exciting opportunity to perfect your skills and learn new alternative logics from others. On CheckIO you can not only resolve the existing tasks, but also provide your own ones and even get points for them. Enjoy the possibility of playing logical games, participating in exciting competitions and share your success with friends inCheckIO.org!"more ...
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I've been using this tool for 2 years and it is pretty stable so far. The project was rename from gsh to Polysh, is incredible how helpful it can be when you need to manage more than 500 or even 1000 servers at once.
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It is our belief that static virtual machines make very poor runtimes for dynamic languages. They constrain the languages to their view of what the "world should look like" and limit the options available to language implementors. We are attempting to prove this by writing an implementation of Clojure that runs on the Python VM. We believe that with a proper dynamic JIT (like pypy) a version of clojure running on a dynamic VM can outperform its JVM and CLR counterparts.
Aside from that, there are many Python libraries like PySide (Qt GUI), numpy, scipy, and stackless that do not have JVM counterparts, or at least the Python implementations are easier to use and learn. clojure-py will integrate tightly with thy Python VM and will be able to use all of these libraries..."more ...
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- google app engine
And many more. Typically, these take one of several approaches. Asynchronous either explicit (cyclone, tornado) or via monkey patch and event loop (gevent); threaded such as rocket, or written in C to use an event loop. In addition to this, you now have several different pythons for deployment:
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Iptables is used to set up, maintain, and inspect the tables of IPv4 packet filter rules in the Linux kernel.
Several different tables may be defined.
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