diff --git a/core/models.py b/core/models.py
index 589c1b3..aae8ec1 100644
--- a/core/models.py
+++ b/core/models.py
@@ -77,7 +77,9 @@ def __str__(self):
         return f"{self.id} {self.short or self.location}"
 
     @classmethod
-    def codes(cls, team: "Team") -> List[QrCode]: # todo: have this return an ordered QuerySet instead of a list
+    def codes(
+        cls, team: "Team"
+    ) -> List[QrCode]:  # todo: have this return an ordered QuerySet instead of a list
         pks = QrCode.code_pks(team)
         return [QrCode.objects.get(id=a) for a in pks]
 
diff --git a/core/views/qr.py b/core/views/qr.py
index ff08d0d..6e54c5c 100644
--- a/core/views/qr.py
+++ b/core/views/qr.py
@@ -161,9 +161,7 @@ def qr_current(request):
 def qr_catalog(request):
     i = request.user.team.current_qr_i
     context = dict(first=i == 0, current=True)
-    context["qr"] = QrCode.codes(request.user.team)[
-        : request.user.team.current_qr_i
-    ]
+    context["qr"] = QrCode.codes(request.user.team)[: request.user.team.current_qr_i]
     return render(request, "core/qr_catalog.html", context=context)