This presentation was given as a scheduled talk at PyCon UK 2007. The material presented covered the following subjects: * Generating code from user interface descriptions with pyuic4 * Connecting signals and slots using auto-connection * Creating custom widgets with PyQt4 for use in Qt Designer
* The app should be written in managed code. * It should integrate our product defect and change tracking system metrics. * It should use the charting capabilities of the Office Web Components. * It should post the submissions to both a SharePoint site and a Web service interfacing to a SQL database. * The overall organizational reports should be generated from the database and implemented using SQL Reporting Services.
The Python Imaging Library uses a plug-in model which allows you to add your own decoders to the library, without any changes to the library itself. Such plug-ins have names like XxxImagePlugin.py, where Xxx is a unique format name (usually an abbreviation). A decoder plug-in should contain a decoder class, based on the ImageFile base class defined in the module with the same name. This class should provide an _open method, which reads the file header and sets up at least the mode and size attributes. To be able to load the file, the method must also create a list of tile descriptors. The class must be explicitly registered, via a call to the Image module.
This is code implements the example given in pages 11-15 of An Introduction to the Kalman Filter by Greg Welch and Gary Bishop, University of North Carolina at Chapel Hill, Department of Computer Science.
XPath is used to navigate through elements and attributes in an XML document. XPath is a major element in W3C's XSLT standard - and XQuery and XPointer are both built on XPath expressions.