This is an implementation of the popular TodoMVC application using RxPY and PyQt4. This application also uses the Model-View-Presenter (MVP) pattern.
TodoMVC is a project that implements a todo list using various Javascript MVC frameworks. This helps developers decide what framework to use for a project because they can see how the same functionality is implemented in different ways.
The point of RxPY TodoMVC is much simpler: I wanted to create a small application to demonstrate the usefulness of RxPY for a desktop GUI application. RxPY is the official Python implementation of ReactiveX. It offers a nice, clean way to structure applications that are generally asynchronous or callback-based. In particular, RxPY facilitates simple presenter logic when hooking up models to views.
Lastly, I wanted to get better at using RxPY, and I figured I could help others along the way. Before I use RxPY in my more serious projects, I wanted to sort out exactly how I should structure an MVP app with rx, and integrate with Qt.
- Python 3
- RxPY
- PyQt4
To run, simply execute python run.py.
I recommend using conda to install the dependencies. There is a pre-built binary package for PyQt4 in conda, and RxPY is a pure Python package so it can be installed with pip:
conda install pyqt pip
pip install rxFunny how a todo app still has a todo list?
- Finish TodoMVC spec. See the
spec here
- Add a combobox to filter by All, Active, and Completed
- Add a "Clear Completed" button
- Double click to edit a todo
- Hide footer if no todos
- Have a button that marks all todos as complete
- Add tests
- Make the app less imperative and more reactive. There is a lot of callback
logic still.
- Better rx logic for uncompleted and completed streams, instead of using a callback function to generate them.
- Make everything look pretty. (Should we use QML and PyQt5?)