TGCaptcha2 is a TurboGears widget that provides an easy way to incorporate a captcha as part a form in an attempt to reduce spam or malicious activity. Features include: * pain-free usage and validation inside of a regular widget-based form * Flexibility to add or extend image generation algorithms and the text displayed in the image Enhanced with: * Embed a word in the image or an equation that the user has to solve * Add an audio captch