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Fix thread identity when the first traced call is another thread's is_alive() #2061

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Merged
Rich Chiodo (rchiodo) merged 2 commits into from
Aug 10, 2026
Merged

Fix thread identity when the first traced call is another thread's is_alive() #2061

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3803e30
Fix thread identity when the first traced call is another thread's is…
aperez Jul 31, 2026
4655b2a
Regenerate _pydevd_sys_monitoring_cython.c
aperez Aug 10, 2026
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2 changes: 1 addition & 1 deletion src/debugpy/_vendored/pydevd/_pydevd_sys_monitoring/_pydevd_sys_monitoring.py
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Original file line number Diff line number Diff line change
Expand Up @@ -352,7 +352,7 @@ def _create_thread_info(depth):
if f_bootstrap_frame.f_code.co_name in ("__bootstrap_inner", "_bootstrap_inner", "is_alive"):
# Note: be careful not to use threading.current_thread to avoid creating a dummy thread.
t = f_bootstrap_frame.f_locals.get("self")
if not isinstance(t, threading.Thread):
if not isinstance(t, threading.Thread) or getattr(t, "ident", None) != thread_ident:
t = None

elif f_bootstrap_frame.f_code.co_name in ("_exec", "__call__"):
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