- description = data['description']
- thumbnail = data['thumbnail']
- view_count = data['view_count']
- uploader = data['user']['username']
- uploader_id = data['user']['id']
+ description = data.get('description')
+ thumbnail = data.get('thumbnail')
+ view_count = data.get('view_count')
+ user = data.get('user', {})
+ uploader = user.get('username')
+ uploader_id = user.get('id')