diff --git a/passbook/admin/views/flows.py b/passbook/admin/views/flows.py
index 2ec591c15..0585c11b7 100644
--- a/passbook/admin/views/flows.py
+++ b/passbook/admin/views/flows.py
@@ -62,7 +62,7 @@ class FlowDebugExecuteView(LoginRequiredMixin, PermissionRequiredMixin, DetailVi
         flow: Flow = self.get_object()
         planner = FlowPlanner(flow)
         planner.use_cache = False
-        plan = planner.plan(self.request, {PLAN_CONTEXT_PENDING_USER: request.user,},)
+        plan = planner.plan(self.request, {PLAN_CONTEXT_PENDING_USER: request.user})
         self.request.session[SESSION_KEY_PLAN] = plan
         return redirect_with_qs(
             "passbook_flows:flow-executor-shell", self.request.GET, flow_slug=flow.slug,
diff --git a/passbook/flows/views.py b/passbook/flows/views.py
index 0e6d0fef5..89395c4eb 100644
--- a/passbook/flows/views.py
+++ b/passbook/flows/views.py
@@ -116,7 +116,7 @@ class FlowExecutorView(View):
                 render(
                     request,
                     "flows/error.html",
-                    {"error": exc, "tb": "".join(format_tb(exc.__traceback__)),},
+                    {"error": exc, "tb": "".join(format_tb(exc.__traceback__))},
                 ),
             )
 
@@ -137,7 +137,7 @@ class FlowExecutorView(View):
                 render(
                     request,
                     "flows/error.html",
-                    {"error": exc, "tb": "".join(format_tb(exc.__traceback__)),},
+                    {"error": exc, "tb": "".join(format_tb(exc.__traceback__))},
                 ),
             )