diff --git a/news/2 Fixes/3530.md b/news/2 Fixes/3530.md
new file mode 100644
index 000000000000..20abb3e6bef5
--- /dev/null
+++ b/news/2 Fixes/3530.md	
@@ -0,0 +1 @@
+Tests debugged via CodeLens no longer break for a `SystemExit` exception after successful test completion.
diff --git a/pythonFiles/testlauncher.py b/pythonFiles/testlauncher.py
index 5ce4532347f6..26adf2647aef 100644
--- a/pythonFiles/testlauncher.py
+++ b/pythonFiles/testlauncher.py
@@ -33,7 +33,7 @@ def exclude_current_file_from_debugger():
             raw_input()
         except NameError:
             input()
-        sys.exit(1)
+        os._exit(1)
 
 
 def run(cwd, testRunner, args):
@@ -53,7 +53,7 @@ def run(cwd, testRunner, args):
         else:
             import nose
             nose.run(argv=args)
-        sys.exit(0)
+        os._exit(0)
     finally:
         pass