Please take a look at https://github.com/taigaio https://github.com/taigaio, in our team we have been using it for 3 years. It works great and serve as a very g

Please take a look at https://github.com/taigaio https://github.com/taigaio, in our team we have been using it for 3 years. It works great and serve as a very good example of a beautiful written, well tested AngularJS single page app with Python Django powering the backend API. Also look at event notification part and good quality responsive app, works great even on mobile phones. You can find a respiratory of designs where you can even see the svg source of design files for UI. Only small subset of open source Project have such level of work available publicly.