Fix ruff lint errors in template loaders, display tags, and user views

Hoist deferred imports to module scope, replace try/except/pass with
contextlib.suppress, and collapse an if/else into a ternary.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Maffooch

dojo/template_loaders.py

@@ -1,4 +1,5 @@
-"""Template loader that selects between the classic and Tailwind UI trees per request.
+"""
+Template loader that selects between the classic and Tailwind UI trees per request.
 
 Two parallel template directories are maintained on this branch:
 
@@ -17,6 +18,7 @@
 """
 
 from crum import get_current_request
+from django.template import TemplateDoesNotExist
 from django.template.loaders.base import Loader as BaseLoader
 from django.template.loaders.cached import Loader as CachedLoader
 from django.template.loaders.filesystem import Loader as FilesystemLoader
@@ -53,7 +55,6 @@ def _ordered_loaders(self):
         return (self._classic_loader, self._tailwind_loader)
 
     def get_template(self, template_name, skip=None):
-        from django.template import TemplateDoesNotExist
         tried = []
         for loader in self._ordered_loaders():
             try:

dojo/templatetags/display_tags.py

@@ -16,6 +16,7 @@
 from django.conf import settings
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
+from django.contrib.staticfiles import finders
 from django.db.models import Case, IntegerField, Sum, Value, When
 from django.template.defaultfilters import stringfilter
 from django.urls import reverse
@@ -145,20 +146,18 @@ def dojo_version():
 
 @register.simple_tag
 def static_v(static_path):
-    """Cache-busting query value for a static asset.
+    """
+    Cache-busting query value for a static asset.
 
     Returns the integer mtime of the file under STATIC_ROOT (or
     STATICFILES_DIRS) so any local edit forces a fresh fetch. Falls
     back to the dojo version string when the file isn't found, which
     is enough granularity for release deploys.
     """
-    try:
-        from django.contrib.staticfiles import finders
+    with contextlib.suppress(Exception):
         path = finders.find(static_path)
         if path:
             return str(int(Path(path).stat().st_mtime))
-    except Exception:
-        pass
     return __version__.replace(".", "")
 
 

dojo/user/views.py

@@ -236,10 +236,7 @@ def alertcount(request):
 
 def alertcount_text(request):
     """Return alert count as plain text for htmx polling."""
-    if not settings.DISABLE_ALERT_COUNTER:
-        count = Alerts.objects.filter(user_id=request.user).count()
-    else:
-        count = 0
+    count = Alerts.objects.filter(user_id=request.user).count() if not settings.DISABLE_ALERT_COUNTER else 0
     return HttpResponse(str(count), content_type="text/plain")