Trouble getting started

[stuaxo]

from transitions import Machine

states = [
    "leaderboard",
    "chapter_teaser"
    "chapter_chosen",
    "adding_to_leaderboard"
]

transitions = [
    { 'trigger': 'advance', 'source': 'leaderboard', 'dest': 'chapter_teaser' },
    { 'trigger': 'advance', 'source': 'chapter_teaser', 'dest': 'chapter_chosen' },
    { 'trigger': 'advance', 'source': 'chapter_chosen', 'dest': 'adding_to_leaderboard' },
    { 'trigger': 'advance', 'source': 'adding_to_leaderboard', 'dest': 'leaderboard' }
]

class LeaderBoardDisplay(object):
    pass

leaderboard = LeaderBoardDisplay()

machine = Machine(leaderboard, states=states, transitions=transitions, initial='leaderboard')

I've been trying to use the state machine above, but can't work out the method to go to the next state.

Also, machine.anything_at_all returns None, instead of an exception.

[tyarkoni]

You're missing a comma after "chapter_teaser" in the states. Adding that should fix it.

[tyarkoni]

Oh, and you would go to the next state by calling the appropriate trigger; in your case, the trigger is advance() for all transitions, so leaderboard.advance().

[stuaxo]

Cheers :)