The Pattern in Python¶

from typing import Callable
import e2c

Configuration via DSL¶

The configuration determines the data flow.

config = (
     '.run -- action',
     'action.render -- render',
     'action.store -- store')

Actors¶

Each function represents an actor.

def action(data, render, store):
    render(data)
    print('%s in action' % data)
    store(1, data)

def render(data:str):
    print('%s in render' % data)

def store(id: int, data:str):
    print('%s and %d in store' % (data, id))

Graph¶

graph = e2c.Graph(config)

graph.actor('action', action)
graph.actor('render', render)
graph.actor('store', store)

Visualize¶

graph.visualize()

Run the flow¶

graph.run("Hello")

$ Hello in render
$ Hello in action
$ Hello and 1 in store