Use url names in redirects

bookwyrm/views/admin/invite.py

@@ -51,7 +51,7 @@ class ManageInvites(View):
         """creates an invite database entry"""
         form = forms.CreateInviteForm(request.POST)
         if not form.is_valid():
-            return HttpResponseBadRequest("ERRORS : %s" % (form.errors,))
+            return HttpResponseBadRequest(f"ERRORS: {form.errors}")
 
         invite = form.save(commit=False)
         invite.user = request.user
@@ -98,6 +98,7 @@ class ManageInviteRequests(View):
             "invite__times_used",
             "invite__invitees__created_date",
         ]
+        # pylint: disable=consider-using-f-string
         if not sort in sort_fields + ["-{:s}".format(f) for f in sort_fields]:
             sort = "-created_date"
 
@@ -149,6 +150,7 @@ class ManageInviteRequests(View):
             )
             invite_request.save()
         emailing.invite_email(invite_request)
+        # pylint: disable=consider-using-f-string
         return redirect(
             "{:s}?{:s}".format(
                 reverse("settings-invite-requests"), urlencode(request.GET.dict())