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    import logging import ftrack_api import sys import pprint import ftrack_connect.application class ApplicationStore(ftrack_connect.application.ApplicationStore): '''Store used to find and keep track of available applications.''' def _discoverApplications(self): '''Return a list of applications that can be launched from this host.''' applications = [] if sys.platform == 'darwin': prefix = ['/', 'Applications'] applications.extend(self._searchFilesystem( expression=prefix + [ 'Blender*', 'Blender.app' ], label='Blender {version}', applicationIdentifier='blender_{version}' )) elif sys.platform == 'win32': prefix = ['C:\\', 'Program Files.*'] applications.extend(self._searchFilesystem( expression=( prefix + ['Blender Foundation', 'Blender*', 'blender.exe'] ), label='Blender {version}', applicationIdentifier='blender_{version}' )) self.logger.debug( 'Discovered applications:\n{0}'.format( pprint.pformat(applications) ) ) return applications class BlenderAction(object): '''Launch Blender action.''' # Unique action identifier. identifier = 'blender-launch-action' def __debug(self, message): f = open("C:\\Users\\aaron\\Desktop\\output.txt", "a") f.write(pprint.pformat(message)) f.close() def __init__(self, applicationStore, launcher): '''Initialise action with *applicationStore*.''' super(BlenderAction, self).__init__() self.logger = logging.getLogger( __name__ + '.' + self.__class__.__name__ ) self.applicationStore = applicationStore self.launcher = launcher if self.identifier is None: raise ValueError('The action must be given an identifier.') def register(self, session): '''Register action.''' session.event_hub.subscribe( 'topic=ftrack.action.discover', self.discover ) session.event_hub.subscribe( 'topic=ftrack.action.launch and data.actionIdentifier={0}'.format( self.identifier ), self.launch ) self.session = session def is_component(self, selection): if ( len(selection) != 1 or selection[0]['entityType'] != 'Component' ): return False return True def discover(self, event): '''Return action based on *event*.''' launchArguments = [] selection = event['data'].get('selection', []) if self.is_component(selection): component = self.session.get('Component', selection[0]['entityId']) if component is not None: location = self.session.pick_location() url = location.get_filesystem_path(component) launchArguments.append(url) items = [] applications = self.applicationStore.applications applications = sorted( applications, key=lambda application: application['label'] ) for application in applications: applicationIdentifier = application['identifier'] label = application['label'] items.append({ 'actionIdentifier': self.identifier, 'label': label, 'icon': 'http://icons.iconarchive.com/icons/dakirby309/simply-styled/256/Blender-icon.png', 'applicationIdentifier': applicationIdentifier, 'launchArguments': ['c:\\Users\\aaron\\Desktop\\lookdev_addon.blend'] #launchArguments }) return { 'items': items } def launch(self, event): '''Callback method for Blender action.''' applicationIdentifier = ( event['data']['applicationIdentifier'] ) context = event['data'].copy() return self.launcher.launch( applicationIdentifier, context ) class ApplicationLauncher(ftrack_connect.application.ApplicationLauncher): '''Custom launcher to modify environment before launch.''' def __debug(self, message): f = open("C:\\Users\\aaron\\Desktop\\output.txt", "a") f.write(pprint.pformat(message)) f.close() def _getApplicationLaunchCommand(self, application, context=None): command = ftrack_connect.application.ApplicationLauncher._getApplicationLaunchCommand(self, application, context) self.__debug(command) return command def register(session, **kw): '''Register action in Connect.''' # Validate that session is an instance of ftrack_api.Session. If not, assume # that register is being called from an old or incompatible API and return # without doing anything. if not isinstance(session, ftrack_api.Session): return applicationStore = ApplicationStore() launcher = ApplicationLauncher( applicationStore ) action = BlenderAction(applicationStore, launcher) action.register(session) Here's the full hook. To be honest, it's not too much different from the Houdini example in the docs at the moment, which is why I'm not sure what's going on. Let me know if something sticks out.