Resolve "extend worker class"

Closes #183 (closed)

smash/web/forms/worker_form.py

@@ -21,7 +21,7 @@ class WorkerForm(ModelForm):
         super(WorkerForm, self).__init__(*args, **kwargs)
         instance = getattr(self, 'instance', None)
 
-        initial_role=None
+        initial_role = None
         if instance is not None:
             worker_type = worker_type_by_worker(instance)
             roles = WorkerStudyRole.objects.filter(worker=instance, study_id=GLOBAL_STUDY_ID)