Fix up dependencies, mypy, linting and python versions

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "monthly"
+    open-pull-requests-limit: 50

.github/workflows/test.yaml

@@ -0,0 +1,29 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python: ["3.8", "3.9", "3.10", "3.11"]
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Install tox and any other packages
+        run: pip install tox
+
+      - name: Run tox
+        # Run tox using the version of Python in `PATH`
+        run: tox -e python

magiclink/forms.py

@@ -34,15 +34,15 @@ class AntiSpam(forms.Form):
     )
 
     def clean_url(self) -> str:
-        url = self.cleaned_data.get('url')
+        url: str = self.cleaned_data.get('url', '')
         if url:
             raise ValidationError('url should be empty')
         return url
 
     def clean_load_time(self) -> float:
-        load_time = self.cleaned_data.get('load_time')
+        cleaned_load_time: str = self.cleaned_data.get('load_time', '')
         try:
-            load_time = float(load_time)
+            load_time = float(cleaned_load_time)
         except ValueError:
             raise ValidationError('Invalid value')
 

magiclink/views.py

@@ -11,7 +11,7 @@
 try:
     from django.utils.http import url_has_allowed_host_and_scheme as safe_url
 except ImportError:  # pragma: no cover
-    from django.utils.http import is_safe_url as safe_url
+    from django.utils.http import is_safe_url as safe_url  # type: ignore
 
 from django.views.decorators.csrf import csrf_protect