UnboundLocalError: local variable 'objs' referenced before assignment about django-fixture-magic HOT 6 CLOSED

(venv)m1@m1:~/app-django$ python manage.py dump_object -k app.FirstModel * > fausto.json
Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/home/m1/app-django/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
    utility.execute()
  File "/home/m1/app-django/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 377, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/m1/app-django/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 288, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/home/m1/app-django/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
    output = self.handle(*args, **options)
  File "/home/m1/app-django/venv/local/lib/python2.7/site-packages/fixture_magic/management/commands/dump_object.py", line 73, in handle
    for obj in objs:
UnboundLocalError: local variable 'objs' referenced before assignment