1 files changed, 1 insertions, 0 deletions
diff --git a/synapse/logging/opentracing.py b/synapse/logging/opentracing.py
index 26c8ffe780..dd9377340e 100644
--- a/synapse/logging/opentracing.py
+++ b/synapse/logging/opentracing.py
@@ -337,6 +337,7 @@ def ensure_active_span(message, ret=None):
 @contextlib.contextmanager
 def noop_context_manager(*args, **kwargs):
     """Does exactly what it says on the tin"""
+    # TODO: replace with contextlib.nullcontext once we drop support for Python 3.6
     yield