add flake8 for python

app/e11sync/settings.py

@@ -34,8 +34,8 @@ if not environ.get("E11SYNC_DEBUG_PRINTED"):
     print("DATABASE_PATH={}".format(_DATABASE_PATH))
     environ["E11SYNC_DEBUG_PRINTED"] = "1"
 
-########################################
-## No more side effects after this place
+#######################################
+# No more side effects after this place
 
 SECRET_KEY = _SECRET_KEY
 

app/e11sync/urls.py

@@ -22,6 +22,7 @@ from django.conf import settings
 urlpatterns = [
     path('admin/', admin.site.urls),
     ] + [
-        path("__debug__/", include("debug_toolbar.urls"))] if settings.DEBUG else [] + [
+        path("__debug__/", include("debug_toolbar.urls"))
+        ] if settings.DEBUG else [] + [
     path('', include('signup.urls')),
 ]

app/manage.py

@@ -3,6 +3,7 @@
 import os
 import sys
 
+
 def main():
     """Run administrative tasks."""
     os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'e11sync.settings')

app/signup/admin.py

@@ -2,9 +2,16 @@ from django.contrib import admin
 
 from .models import Signup
 
+
 @admin.register(Signup)
 class SignupAdmin(admin.ModelAdmin):
-    _all_fields = ["email", "created_at", "anonymized_ip", "user_agent", "geoip"]
+    _all_fields = [
+        "email",
+        "created_at",
+        "anonymized_ip",
+        "user_agent",
+        "geoip"
+    ]
 
     date_hierarchy = "created_at"
     list_display = ["email", "created_at", "user_agent"] + ["place_name"]

app/signup/models.py

@@ -1,5 +1,6 @@
 from django.db import models
 
+
 class Signup(models.Model):
     email = models.EmailField()
     created_at = models.DateTimeField(auto_now_add=True)

app/signup/tests.py

@@ -3,6 +3,7 @@ from django.urls import reverse
 
 from .models import Signup
 
+
 class SignupViewTest(TestCase):
     def setUp(self):
         self.client = Client()

flake.nix

@@ -70,6 +70,12 @@
             statix.enable = true;
           };
         };
+        format = pkgs.runCommand "check-format" {} ''
+          ${pkgs.python3Packages.flake8}/bin/flake8 \
+              --max-line-length 99 \
+              --exclude ${./.}/app/signup/migrations/ ${./.}
+          mkdir -p $out
+        '';
       };
 
       apps.e11sync-gunicorn = {
@@ -83,12 +89,15 @@
 
       devShells.default = pkgs.mkShellNoCC {
         packages = with pkgs; [
-          python3Packages.django-debug-toolbar
           python3Packages.django_5
           python3Packages.django-compressor
           python3Packages.geoip2
           libmaxminddb
           dart-sass
+
+          python3Packages.django-debug-toolbar
+          python3Packages.flake8
+          python3Packages.autopep8
         ];
         GEOIP_PATH = "${geoip-archive}";
         E11SYNC_DEBUG = "1";