Add six for Django 3 comp

jet/dashboard/models.py

@@ -1,7 +1,7 @@
 from importlib import import_module
 import json
 from django.db import models
-from django.utils.encoding import python_2_unicode_compatible
+from six import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 from jet.utils import LazyDateTimeEncoder
 

jet/dashboard/templates/admin/index.html

@@ -1,5 +1,5 @@
 {% extends "admin/base_site.html" %}
-{% load i18n admin_static jet_dashboard_tags static %}
+{% load i18n jet_dashboard_tags static %}
 
 {% block html %}{% get_dashboard 'index' as dashboard %}{{ block.super }}{% endblock %}
 

jet/models.py

@@ -1,6 +1,6 @@
 from django.db import models
 from django.utils import timezone
-from django.utils.encoding import python_2_unicode_compatible
+from six import python_2_unicode_compatible
 from django.utils.translation import ugettext_lazy as _
 
 

jet/templates/admin/edit_inline/compact.html

@@ -1,4 +1,4 @@
-{% load i18n admin_urls admin_static %}
+{% load i18n admin_urls static %}
 
 <div class="inline-group compact" id="{{ inline_admin_formset.formset.prefix }}-group" data-inline-prefix="{{ inline_admin_formset.formset.prefix }}" data-inline-verbose-name="{{ inline_admin_formset.opts.verbose_name|capfirst }}" data-inline-delete-text="{% trans "Remove" %}">
     <h2>{{ inline_admin_formset.opts.verbose_name_plural|capfirst }}</h2>

jet/templates/rangefilter/date_filter.html

@@ -1,4 +1,4 @@
-{% load i18n admin_static %}
+{% load i18n static %}
 <h3>{% blocktrans with filter_title=title %} By {{ filter_title }} {% endblocktrans %}</h3>
 <script>
     function datefilter_apply(event, qs_name, form_name){

jet/tests/models.py

@@ -1,5 +1,5 @@
 from django.db import models
-from django.utils.encoding import python_2_unicode_compatible
+from six import python_2_unicode_compatible
 
 
 @python_2_unicode_compatible

setup.py

@@ -12,7 +12,7 @@ def read(fname):
 
 
 def get_install_requires():
-    install_requires = ['Django']
+    install_requires = ['Django', 'six']
 
     try:
         import importlib