Sudoku Sensei is not a Sudoku solver, but an "explainer". It can list the logical steps taken. It can generate new Sudokus and rank their difficulty. It supports not only 9x9 grids, but MxN, samurai, or any layout you can describe with the board editor. It has a GUI, manual, tutorial, and examples.
This package can be used to implement aspect oriented programming (AOP) by executing the code of classes that enable orthogonal aspects at run- time. The intention is to provide a means to implement orthogonal aspects in separate classes that may be an interesting add to the application, like logging, caching, transaction control, etc., without affecting the main business logic. The package provides base classes for implementing defining point cuts where the code of an advice class is called to implement actions of the orthogonal aspects that an application may need to enable.
class.upload.php manages file uploads for you. It manages the uploaded file and allows you to do whatever you want with the file as many times as you want. If the file is an image, you can convert and resize it, rotate it, crop it in many ways. You can also add borders, frames, bevels, text labels, and watermarks or apply graphic filters such as unsharp mask, contrast or brightness correction, colorization, negative, greyscale, reflections, and more. Security features and file management functions are provided. Flash uploaders and XMLHttpRequest uploads are supported. The class can also work on local files, is useful for batch processing, and can circumvent open_basedir restrictions. Files can be output directly to the browser. The error messages are internationalized, and translations provided. It is compatible with PHP 4 and 5.
SPyDI Is a powerful engine to create distributed full text indexing systems and distributed search engines. It supports harvesting, crawling (pull mehtods), and push methods (via a Web interface or SPyRO Web services). It supports boolean and vector Information retrieval models. It has few dependencies, and comes with its own HTTP server and HTML embedded pages language (called pyew and wey pages), and session manager. It can use the SMTP of the Python library. It supports replacing the default modules with some better modules (Apache, exim, etc).
Power Form Validation is class which helps a programmer to validate form inputs just in few lines of code. This class can help control whether a field is empty, whether a component is selected, whether the values of two components are the same, whether a text entry value consists only of letters, whether a value was changed from a given value, and whether a value is longer than or shorter than or equal to a given value. The class can also control how many components are not selected or how many of them have no value entered. Email addresses can be validated with regular expressions.