CherryPy Essentials: Rapid Python Web Application by Sylvain Hellegouarch

By Sylvain Hellegouarch

This ebook covers the CherryPy library for Python net improvement from its heritage and deploy via its major positive factors and center options to its integration with Python and different items to build, try out, and install a pattern photoblog software. the writer Sylvain Hellegouarch is devoted to the advance of loose software program tasks and has been coordinating and administrating the neighborhood efforts round the CherryPy venture seeing that 2004. The procedure in response to an instance program introduces many different universal Python libraries, supplying transferable talents additionally suitable for non-web Python initiatives. CherryPy is a Python library for internet improvement that permits builders to construct net purposes within the related manner as the other object-oriented Python software. Enriched via a number of years of lively improvement, it has turn into some of the most validated toolkits for construction good and high-performance internet purposes in Python. CherryPy abstracts the advanced low-level HTTP protocol into an easy-to-use interface that respects Python idioms. The library goals at being easy to benefit for a newbie whereas providing the main complicated positive aspects to fluent Python builders. For those purposes CherryPy was once selected to be on the center of the preferred and feature-rich TurboGears internet framework. CherryPy-powered net functions are stand-alone Python purposes with their very own embedded multi-threaded internet server, yet may also run at the back of Apache or IIS for scalability..CherryPy deploy utilizing tarball, egg, and subversion. The CherryPy library extensive: its layout and the way to take advantage of it. utilizing CherryPy with universal Python and non-Python items . item RelationalMapping with SQLObject, SQLAlchemy, and Dejavu. internet prone through leisure and the Atom Publishing Protocol. AJAX and client-side scripting through MochiKit. Unit, sensible, and cargo trying out. CherryPy, Apache, and lighttpd deployment solurionsThe publication begins with chapters devoted to CherryPy itself, its heritage and deploy. Then it strikes via a steady creation to the most good points and ideas of CherryPy to an intensive overview of its middle features. After laying this beginning the booklet dives right into a real-world instance, detailing very important steps within the production of a photoblog program. those chapters hide database manipulation through item Relational Mapping (ORM), utilizing internet companies to reinforce the appliance, and client-side scripting via AJAX. ultimately, the booklet covers the necessity for unit, sensible, and function trying out ahead of final with deployment ideas for a CherryPy-based application.Who this publication is written for This ebook is especially geared in the direction of Python net builders, who're trying to upload the ability of the CherryPy library to their latest Python skillset. It assumes an outstanding operating wisdom of Python . even if the CherryPy toolkit is on the middle of the ebook, many different universal libraries are brought.

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Py build 4. py install Note that these commands will have to be issued from a command line. Under Microsoft Windows you will run those from a DOS command prompt The above steps will perform a global installation of CherryPy on your system for the default Python environment. There are cases where this is not suitable or not possible. 4 in steps 3 and 4 mentioned earlier. py install –-home=~ This will put the files in $HOME/lib/python where $HOME represents your home directory. py install –-prefix=c:\some\path [ 17 ] Download and Install CherryPy The path you choose is not important in itself and you can use whatever suits your environment.

For more information on WSGI, please refer to Chapter 4. The XML-RPC Module XML-RPC is a remote procedure call protocol using XML to format messages, transferred via HTTP, between an XML-RPC client and XML-RPC server. Basically, a client creates an XML document containing the name of the remote method to call and the values to be passed and then requests the server using an HTTP POST message. The returned HTTP response contains the XML document, as a string, to be processed by the client. The CherryPy xmlrpc module allows you to transform a published object into an XML-RPC service.

Css file is to be handled by the staticfile tool and also indicate the absolute path of the physical file to be served. We will explain in detail what tools are in the following chapters but for now imagine them as a way to extend CherryPy's internal features and enhance its possibilities. mount(application_instance, script_name, config='/path/to/config/file') Although in most cases choosing between a dictionary and a file will be a matter of taste, it may happen in some cases that one is better than the other.

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