style: fix code style

pretalx_musicrate/signals.py

@@ -12,9 +12,11 @@ def pretalx_musicrate_placeholders(sender, **kwargs):
         SimpleFunctionalMailTextPlaceholder(
             "assignee",
             ["submission"],
-            lambda submission: assignee.user.name
-            if (assignee := submission.assignee) is not None
-            else "Günther",
+            lambda submission: (
+                assignee.user.name
+                if (assignee := submission.assignee) is not None
+                else "Günther"
+            ),
             "Günther",
             _("The name of the submission's assignee"),
         )

pretalx_musicrate/views.py

@@ -323,13 +323,15 @@ class PresenterView(EventPermissionRequired, SubmissionMixin, TemplateView):
                 links.append(
                     (
                         "youtube",
-                        url.removeprefix("http")
-                        .removeprefix("s")
-                        .removeprefix("://")
-                        .removeprefix("youtu.be/")[:11]
-                        if m[1] == "youtu.be/"
-                        else "".join(
-                            parse_qs(urlparse(url).query).get("v", "dQw4w9WgXcQ")
+                        (
+                            url.removeprefix("http")
+                            .removeprefix("s")
+                            .removeprefix("://")
+                            .removeprefix("youtu.be/")[:11]
+                            if m[1] == "youtu.be/"
+                            else "".join(
+                                parse_qs(urlparse(url).query).get("v", "dQw4w9WgXcQ")
+                            )
                         ),
                     )
                 )