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python implementation of the redux library

Project description

Python port of redux library

Simple example app:

from redux import create_store, actiontypes, frozenbunch

action_types = actiontypes('myapp', 'increment decrement')

def app_reducer(state, action):
if state is None:
return frozenbunch(counter=0)
if action.type == action_types.increment:
return state.copy(counter=state.counter + 1)
elif action.type == action_types.decrement:
return state.copy(counter=state.counter - 1)
return state

store = create_store(app_reducer)

The frozenbunch type is an immutable version of the Bunch pattern, whose members can be accessed by item or by attribute. For example:

x = frozenbunch(foo=12, bar=7)
x['foo'] = 17 = 17
x = x.copy(bar=17)

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