fix: avoid dbtRunner default callbacks being shared across instances (#…

…7279) * fix: avoid dbtRunner default callbacks being shared across instances * changie
dbt-labs · Apr 11, 2023 · 7a4d3bd · 7a4d3bd
1 parent 2afb4cc
commit 7a4d3bd
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diff --git a/.changes/unreleased/Fixes-20230405-124315.yaml b/.changes/unreleased/Fixes-20230405-124315.yaml
@@ -0,0 +1,6 @@
+kind: Fixes
+body: avoid dbtRunner default callbacks being shared across instances
+time: 2023-04-05T12:43:15.418016-04:00
+custom:
+  Author: chamini2
+  Issue: "7278"
diff --git a/core/dbt/cli/main.py b/core/dbt/cli/main.py
@@ -66,11 +66,14 @@ def __init__(
         project: Project = None,
         profile: Profile = None,
         manifest: Manifest = None,
-        callbacks: List[Callable[[EventMsg], None]] = [],
+        callbacks: List[Callable[[EventMsg], None]] = None,
     ):
         self.project = project
         self.profile = profile
         self.manifest = manifest
+
+        if callbacks is None:
+            callbacks = []
         self.callbacks = callbacks
 
     def invoke(self, args: List[str], **kwargs) -> dbtRunnerResult: