change package version and fix some error

dbview/__init__.py

@@ -1,3 +1,3 @@
 # placeholder for git
-from helpers import CreateView
-from models import DbView
+from dbview.helpers import CreateView
+from dbview.models import DbView

dbview/helpers.py

@@ -1,6 +1,7 @@
 from django.db import migrations
 from django.apps import apps
 
+
 class CreateView(migrations.CreateModel):
     def database_forwards(self, app_label, schema_editor, from_state, to_state):
         model = to_state.apps.get_model(app_label, self.name)

dbview/models.py

@@ -1,5 +1,6 @@
 from django.db import models
 
+
 class ViewManager(models.Manager):
     def bulk_create(self, *args, **kwargs):
         raise NotImplementedError
@@ -16,6 +17,7 @@ class ViewManager(models.Manager):
     def update(self, *args, **kwargs):
         raise NotImplementedError
 
+
 class DbView(models.Model):
     objects = ViewManager()