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| @@ -60,7 +60,8 b' class EventManager(object):' | |||
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60 | 60 | if not callable(function): |
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61 | 61 | raise TypeError('Need a callable, got %r' % function) |
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62 | 62 | callback_proto = available_events.get(event) |
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63 | self.callbacks[event].append(callback_proto.adapt(function)) | |
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63 | if function not in self.callbacks[event]: | |
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64 | self.callbacks[event].append(callback_proto.adapt(function)) | |
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64 | 65 | |
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65 | 66 | def unregister(self, event, function): |
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66 | 67 | """Remove a callback from the given event.""" |
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