Do not use asterisk in imports.

__init__.py

@@ -1,11 +1,11 @@
 # The COPYRIGHT file at the top level of this repository contains the full
 # copyright notices and license terms.
 from trytond.pool import Pool
-from .production import *
+from . import production
 
 
 def register():
     Pool.register(
-        Template,
-        Production,
+        production.Template,
+        production.Production,
         module='production_quality_control', type_='model')