'Check projects by last update time'

def _check_projects(self):

    for project in self.projectdb.check_update(self.last_check_projects, ['name', 'updatetime']):
        if (project['name'] not in self.projects):
            continue
        if (project['updatetime'] > self.projects[project['name']]['info'].get('updatetime', 0)):
            self._update_project(project['name'])
    self.last_check_projects = time.time()
