This is a draft cheat sheet. It is a work in progress and is not finished yet.
Basic
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Define a state (use initial=True
to set initial state) |
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Define input. Body must be empty |
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Define output. Make processing here |
To define transitions:
state.upon(input, enter=next_state, outputs=[]
Graphviz
The MethodicalMachine
class has an function named asDigraph()
You can use it to create a Digraph
object from the graphviz
package. Then you can manipulate it as any Digraph from graphviz.
To render it, you can use Digraph.render(filename)
For example:
g = _machine.asDigraph()
g.render("_machine.gv")
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Serializing
You can serialize the Machine. To do that, you must define serialized values for each state:
@machine.state(serialized="on")
Then you define a serializer function which will receive this state serialized value:
@machine.serializer()
def save(self, state):
return {"is-it-on": state}
Then the unserializer:
@machine.unserializer()
def _restore(self, blob):
return blob["is-it-on"]
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