feat(web): update to Python 3.7 and latest package versions

Author: DahlitzFlorian

web/Dockerfile

@@ -1 +1,8 @@
-FROM python:3.5-onbuild
+FROM python:3.7-slim
+
+RUN python -m pip install --upgrade pip
+
+COPY requirements.txt requirements.txt
+RUN python -m pip install -r requirements.txt
+
+COPY . .

web/docker_django/apps/todo/urls.py

@@ -1,7 +1,7 @@
-from django.conf.urls import url
+from django.urls import re_path
 
 from . import views
 
 urlpatterns = [
-    url(r'^$', views.home, name='home'),
+    re_path(r'^$', views.home, name='home'),
 ]

web/docker_django/urls.py

@@ -1,7 +1,7 @@
-from django.conf.urls import include, url
+from django.urls import include, re_path
 from django.contrib import admin
 
 urlpatterns = [
-    url(r'^admin/', include(admin.site.urls)),
-    url(r'^', include('docker_django.apps.todo.urls')),
+    re_path(r'^admin/', admin.site.urls),
+    re_path(r'^', include('docker_django.apps.todo.urls')),
 ]

web/requirements.txt

@@ -1,4 +1,4 @@
-Django==1.8.1
-gunicorn==19.3.0
-psycopg2==2.6
-redis==2.10.3
+Django==2.1.7
+gunicorn==19.9.0
+psycopg2==2.7.7
+redis==3.2.1