Experiments in dataflow and Flow-based programming based on Python, compatible and integrated with NoFlo

After installing python 3:

git clone https://github.com/celrenheit/protoflo
cd protoflo
sudo pip install -r requirements.txt

Run the server:

python -m protoflo runtime

If you want to use the NoFlo web UI, install and run that as well:

npm install -g bower
npm install -g grunt-cli

mkdir noflo
cd noflo

git clone https://github.com/noflo/noflo-ui
cd noflo-ui
npm install
# running bower before grunt prompts to resolve a dependency conflict which otherwise causes grunt to fail
bower install
grunt build
python -m SimpleHTTPServer

1. cd into the directory that you cloned ProtoFlo into.
2. Start the ProtoFlo runtime.

   python -m protoflo runtime
   

3. Important (need to find a better way): Register the runtime using this url: http://localhost:8000/index.html#runtime/endpoint?protocol%3Dwebsocket%26address%3Dws%3A%2F%2Flocalhost%3A3569%26
4. Create a new project in NoFlo selecting the ProtoFlo runtime
5. Inside the new project/graph, select the appropriate ProtoFlo runtime clicking on the top-right menu
6. Green arrows should appear on the top-right menu, right before ws:\\localhost:3569
7. Try typing Add into the component search box on top-left

First install the test suite:

nmp install -g fbp-protocol

Then, from the repo directory, run the tests

fbp-test

Modules with names beginning with "protoflo" on the Python Path are searched for components - they must have a __components__ attribute which is a dict listing the components. Components should be sub-classes of protoflo.components.IComponent or methods which return IComponent objects. Alternatively, they can be a filename pointing to a json or fbp graph file.

Prototyping

Can create and run graphs using the NoFlo UI protocol.

The code in this repo is based on a direct conversion from coffeescript+node into python+twisted of noflo-runtime-websocket and its dependencies.

The chart below shows which repos and files the protoflo source code is based on. The code is based on Noflo 0.5.4 (and needs to be updated).

MIT

• Update to latest Noflo
• Write tests
• Implement components for glib/GI, incl mainloop. GTK+ example
• Implement port2port NoFlo Websocket protocol
• Implement MicroFlo serial-protocol components