.

src/debugpy/launcher/autokill.py

@@ -12,6 +12,7 @@
 # {"subProcess": false} or {"noDebug": true} doesn't track subprocesses at all,
 # but the code here ensures that all those subprocesses are cleaned up anyway.
 
+import atexit
 import os
 import signal
 import sys
@@ -22,7 +23,7 @@ def _enable_posix():
     # unless they opt out) to a new process group, and kill the entire group on exit.
     pid = os.getpid()
     os.setpgid(pid, 0)
-    sys.atexit(lambda: os.kill(-pid, signal.SIGKILL))
+    atexit.register(lambda: os.kill(-pid, signal.SIGKILL))
 
 
 def _enable_win32():