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authorJonathan de Jong <jonathan@automatia.nl>2021-04-08 23:38:54 +0200
committerGitHub <noreply@github.com>2021-04-08 22:38:54 +0100
commit2ca4e349e9d0c606d802ae15c06089080fa4f27e (patch)
tree0b3e8448124e0c0cbe128b27ab1641be02697536 /synapse/logging/opentracing.py
parentMerge pull request #9766 from matrix-org/rav/drop_py35 (diff)
downloadsynapse-2ca4e349e9d0c606d802ae15c06089080fa4f27e.tar.xz
Bugbear: Add Mutable Parameter fixes (#9682)
Part of #9366

Adds in fixes for B006 and B008, both relating to mutable parameter lint errors.

Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>
Diffstat (limited to 'synapse/logging/opentracing.py')
-rw-r--r--synapse/logging/opentracing.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/synapse/logging/opentracing.py b/synapse/logging/opentracing.py
index b8081f197e..bfe9136fd8 100644
--- a/synapse/logging/opentracing.py
+++ b/synapse/logging/opentracing.py
@@ -486,7 +486,7 @@ def start_active_span_from_request(
 def start_active_span_from_edu(
     edu_content,
     operation_name,
-    references=[],
+    references: Optional[list] = None,
     tags=None,
     start_time=None,
     ignore_active_span=False,
@@ -501,6 +501,7 @@ def start_active_span_from_edu(
 
         For the other args see opentracing.tracer
     """
+    references = references or []
 
     if opentracing is None:
         return noop_context_manager()