Fix imports for Django >=3.0

Fixes #60

.travis.yml

@@ -12,15 +12,27 @@ python:
 
 env:
   matrix:
-    - DJANGO=2.0.7
+    - DJANGO=3.0.3
+    - DJANGO=2.2.10
+    - DJANGO=2.0.13
     - DJANGO=1.8.19
     - DJANGO=1.10.8
-    - DJANGO=1.11.14
+    - DJANGO=1.11.28
 
 matrix:
   exclude:
     - python: "2.7"
-      env: DJANGO=2.0.7
+      env: DJANGO=2.0.13
+    - python: "2.7"
+      env: DJANGO=2.2.10
+    - python: "2.7"
+      env: DJANGO=3.0.3
+    - python: "3.4"
+      env: DJANGO=2.2.10
+    - python: "3.4"
+      env: DJANGO=3.0.3
+    - python: "3.5"
+      env: DJANGO=3.0.3
     - python: "3.6"
       env: DJANGO=1.8.19
     - python: "3.6"

Dockerfile

@@ -1,8 +1,8 @@
-FROM debian:jessie
+FROM debian:stable
 
 LABEL maintainer "Łukasz Mierzwa <[email protected]>"
 
-RUN apt-get update && apt-get install --no-install-recommends -y python3-dev python3-pip libyaml-dev git \
+RUN apt-get update && apt-get install --no-install-recommends -y python3-dev python3-pip python3-setuptools libyaml-dev git \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 

django_bootstrap_breadcrumbs/templatetags/django_bootstrap_breadcrumbs.py

@@ -13,12 +13,16 @@
 from django.utils.html import escape
 from django.utils.safestring import mark_safe
 from django.utils.encoding import smart_text
-from django.utils.translation import ugettext as _
 from django.db.models import Model
 from django.conf import settings
 from django import template, VERSION
 from six import wraps
 
+if VERSION >= (3, 0):
+    from django.utils.translation import gettext as _
+else:
+    from django.utils.translation import ugettext as _
+
 if VERSION >= (2, 0):
     from django.urls import (reverse, resolve, NoReverseMatch, Resolver404)
 else:

tests/urls.py

@@ -7,9 +7,14 @@
 
 from __future__ import unicode_literals
 
-import django.contrib.auth.views
+
 from django import VERSION
 
+if VERSION >= (2, 1):
+    from django.contrib.auth.views import LoginView
+    login = LoginView.as_view()
+else:
+    from django.contrib.auth.views import login
 
 if VERSION < (1, 8):  # pragma: nocover
     from django.conf.urls import url, include, patterns
@@ -31,28 +36,25 @@
 elif VERSION < (2, 0):
     from django.conf.urls import url, include
     nsurlpatters = [
-        url(r'^login2$', django.contrib.auth.views.login, name='login2_url'),
+        url(r'^login2$', login, name='login2_url'),
     ]
 
     urlpatterns = [
-        url(r'^login$', django.contrib.auth.views.login, name='login_url'),
-        url(r'^login/(?P<slug>[-_\w]+)$', django.contrib.auth.views.login,
-            name='login_args_url'),
-        url(r'^login/user/(?P<user_id>\S+)$', django.contrib.auth.views.login,
-            name='login_kwargs_url'),
+        url(r'^login$', login, name='login_url'),
+        url(r'^login/(?P<slug>[-_\w]+)$', login, name='login_args_url'),
+        url(r'^login/user/(?P<user_id>\S+)$', login, name='login_kwargs_url'),
         url(r'^ns/', include(nsurlpatters, namespace='ns')),
     ]
 else:
     from django.urls import include, path, re_path
     nsurlpatters = [
-        path('login2', django.contrib.auth.views.login, name='login2_url'),
+        path('login2', login, name='login2_url'),
     ]
 
     urlpatterns = [
-        path('login', django.contrib.auth.views.login, name='login_url'),
-        re_path(r'^login/(?P<slug>[-_\w]+)$', django.contrib.auth.views.login,
-                name='login_args_url'),
-        re_path(r'^login/user/(?P<user_id>\S+)$',
-                django.contrib.auth.views.login, name='login_kwargs_url'),
+        path('login', login, name='login_url'),
+        re_path(r'^login/(?P<slug>[-_\w]+)$', login, name='login_args_url'),
+        re_path(r'^login/user/(?P<user_id>\S+)$', login,
+                name='login_kwargs_url'),
         path('ns/', include((nsurlpatters, 'ns'), namespace='ns')),
     ]