diff --git a/tailbone/api/batch/ordering.py b/tailbone/api/batch/ordering.py
index 3c489fcd..1661d06f 100644
--- a/tailbone/api/batch/ordering.py
+++ b/tailbone/api/batch/ordering.py
@@ -2,7 +2,7 @@
 ################################################################################
 #
 #  Rattail -- Retail Software Framework
-#  Copyright © 2010-2022 Lance Edgar
+#  Copyright © 2010-2023 Lance Edgar
 #
 #  This file is part of Rattail.
 #
@@ -27,12 +27,8 @@ These views expose the basic CRUD interface to "ordering" batches, for the web
 API.
 """
 
-from __future__ import unicode_literals, absolute_import
-
 import datetime
 
-import six
-
 from rattail.db import model
 from rattail.util import pretty_quantity
 
@@ -67,10 +63,10 @@ class OrderingBatchViews(APIBatchView):
         data = super(OrderingBatchViews, self).normalize(batch)
 
         data['vendor_uuid'] = batch.vendor.uuid
-        data['vendor_display'] = six.text_type(batch.vendor)
+        data['vendor_display'] = str(batch.vendor)
 
         data['department_uuid'] = batch.department_uuid
-        data['department_display'] = six.text_type(batch.department) if batch.department else None
+        data['department_display'] = str(batch.department) if batch.department else None
 
         data['po_total_calculated_display'] = "${:0.2f}".format(batch.po_total_calculated or 0)
         data['ship_method'] = batch.ship_method
@@ -152,7 +148,7 @@ class OrderingBatchViews(APIBatchView):
             product = cost.product
             subdept_costs.append({
                 'uuid': cost.uuid,
-                'upc': six.text_type(product.upc),
+                'upc': str(product.upc),
                 'upc_pretty': product.upc.pretty() if product.upc else None,
                 'brand_name': product.brand.name if product.brand else None,
                 'description': product.description,
@@ -173,8 +169,8 @@ class OrderingBatchViews(APIBatchView):
 
         # sort the (sub)department groupings
         sorted_departments = []
-        for dept in sorted(six.itervalues(departments), key=lambda d: d['name']):
-            dept['subdepartments'] = sorted(six.itervalues(dept['subdepartments']),
+        for dept in sorted(departments.values(), key=lambda d: d['name']):
+            dept['subdepartments'] = sorted(dept['subdepartments'].values(),
                                             key=lambda s: s['name'])
             sorted_departments.append(dept)
 
@@ -185,6 +181,8 @@ class OrderingBatchViews(APIBatchView):
         history = list(reversed(history))
         # must convert some date objects to string, for JSON sake
         for h in history:
+            if not h:
+                continue
             purchase = h.get('purchase')
             if purchase:
                 dt = purchase.get('date_ordered')
@@ -237,7 +235,7 @@ class OrderingBatchRowViews(APIBatchRowView):
         data = super(OrderingBatchRowViews, self).normalize(row)
 
         data['item_id'] = row.item_id
-        data['upc'] = six.text_type(row.upc)
+        data['upc'] = str(row.upc)
         data['upc_pretty'] = row.upc.pretty() if row.upc else None
         data['brand_name'] = row.brand_name
         data['description'] = row.description
@@ -262,7 +260,7 @@ class OrderingBatchRowViews(APIBatchRowView):
         data['po_total_calculated'] = row.po_total_calculated
         data['po_total_calculated_display'] = "${:0.2f}".format(row.po_total_calculated) if row.po_total_calculated is not None else None
         data['status_code'] = row.status_code
-        data['status_display'] = row.STATUS.get(row.status_code, six.text_type(row.status_code))
+        data['status_display'] = row.STATUS.get(row.status_code, str(row.status_code))
 
         return data