sys.monitoring PY_UNWIND not being delivered when a generator is closed/garbage collected #140373
Description
Bug report
Bug description:
With Python 3.12, this code generates a PY_UNWIND event; with 3.13 and later, it no longer does.
import sys
def gen():
yield 1
yield 2
def callback(code, off, exc):
if code is gen.__code__:
print("got unwind!")
ID=3
sysmon = sys.monitoring
sysmon.use_tool_id(ID, "test")
sysmon.register_callback(ID, sysmon.events.PY_UNWIND, callback)
sysmon.set_events(ID, sysmon.events.PY_UNWIND)
g = gen()
next(g)
del g # or g.close()CPython versions tested on:
3.13, 3.14
Operating systems tested on:
macOS, Linux