gistfile1.py

In [20]: list(value for key, value in vars(models).items() if isinstance(value, type) and issubclass(value, Model))
Out[20]: 
[<class 'readyroom.catalog.models.Service'>,
 <class 'readyroom.catalog.models.System'>,
 <class 'readyroom.catalog.models.DriveType'>,
 <class 'readyroom.catalog.models.DriveConfig'>,
 <class 'readyroom.catalog.models.Worklog'>,
 <class 'django.contrib.auth.models.User'>,
 <class 'readyroom.catalog.models.Daemon'>,
 <class 'readyroom.catalog.models.MemoryType'>,
 <class 'readyroom.catalog.models.OSVersion'>,
 <class 'readyroom.catalog.models.Process'>,
 <class 'readyroom.catalog.models.DriveSet'>,
 <class 'readyroom.catalog.models.Computer'>,
 <class 'readyroom.catalog.models.MemoryConfig'>,
 <class 'readyroom.nagios.models.ServiceCheck'>,
 <class 'readyroom.catalog.models.OS'>,
 <class 'readyroom.catalog.models.Port'>,
 <class 'readyroom.catalog.models.Size'>]