importsysdeftracefunc(frame,event,arg):frame.f_trace_opcodes=Trueifevent=='line':1/0returntracefuncdefmain():passsys.settrace(tracefunc)main()

$ ../cpython/python -Xfaulthandler crash.py python: Python/ceval.c:1107: _PyEval_EvalFrameDefault: Assertion `!_PyErr_Occurred(tstate)' failed.Fatal Python error: AbortedCurrent thread 0x00007f06c1a47740 (most recent call first):  File "/home/.../crash.py", line 13 in <module>Aborted (core dumped)

#0  0x00007ffff7d3f34c in __pthread_kill_implementation () from /usr/lib/libc.so.6#1  0x00007ffff7cf24b8 in raise () from /usr/lib/libc.so.6#2  0x00007ffff7cdc534 in abort () from /usr/lib/libc.so.6#3  0x00007ffff7cdc45c in __assert_fail_base.cold () from /usr/lib/libc.so.6#4  0x00007ffff7ceb116 in __assert_fail () from /usr/lib/libc.so.6#5  0x00005555557b7497 in _PyEval_EvalFrameDefault (tstate=0x555555b46aa8 <_PyRuntime+180616>, frame=0x7ffff7fbc020, throwflag=0)atPython/ceval.c:1107#6  0x00005555557c9d3b in _PyEval_EvalFrame (tstate=tstate@entry=0x555555b46aa8 <_PyRuntime+180616>, frame=frame@entry=0x7ffff7fbc020,throwflag=throwflag@entry=0)at ./Include/internal/pycore_ceval.h:95#7  0x00005555557c9e53 in _PyEval_Vector (tstate=tstate@entry=0x555555b46aa8 <_PyRuntime+180616>, func=func@entry=0x7ffff77e5e90,locals=locals@entry=0x7ffff77895b0,args=args@entry=0x0,argcount=argcount@entry=0,kwnames=kwnames@entry=0x0)atPython/ceval.c:5789#8  0x00005555557c9f69 in PyEval_EvalCode (co=co@entry=0x7ffff79a1fe0, globals=globals@entry=0x7ffff77895b0, locals=locals@entry=0x7ffff77895b0)atPython/ceval.c:591#9  0x00005555558246b3 in run_eval_code_obj (tstate=tstate@entry=0x555555b46aa8 <_PyRuntime+180616>, co=co@entry=0x7ffff79a1fe0,globals=globals@entry=0x7ffff77895b0,locals=locals@entry=0x7ffff77895b0)atPython/pythonrun.c:1713#10 0x0000555555824778 in run_mod (mod=mod@entry=0x555555c3fb10, filename=filename@entry=0x7ffff77f1310, globals=globals@entry=0x7ffff77895b0,locals=locals@entry=0x7ffff77895b0,flags=flags@entry=0x7fffffffe548,arena=arena@entry=0x7ffff77ec040)atPython/pythonrun.c:1734#11 0x0000555555824840 in pyrun_file (fp=fp@entry=0x555555b8f530, filename=filename@entry=0x7ffff77f1310, start=start@entry=257,globals=globals@entry=0x7ffff77895b0,locals=locals@entry=0x7ffff77895b0,closeit=closeit@entry=1,flags=0x7fffffffe548)atPython/pythonrun.c:1629#12 0x0000555555827664 in _PyRun_SimpleFileObject (fp=fp@entry=0x555555b8f530, filename=filename@entry=0x7ffff77f1310, closeit=closeit@entry=1,flags=flags@entry=0x7fffffffe548)atPython/pythonrun.c:439#13 0x0000555555827823 in _PyRun_AnyFileObject (fp=fp@entry=0x555555b8f530, filename=filename@entry=0x7ffff77f1310, closeit=closeit@entry=1,flags=flags@entry=0x7fffffffe548)atPython/pythonrun.c:78#14 0x0000555555845d79 in pymain_run_file_obj (program_name=program_name@entry=0x7ffff77f1380, filename=filename@entry=0x7ffff77f1310,skip_source_first_line=0)atModules/main.c:360#15 0x0000555555845ea1 in pymain_run_file (config=config@entry=0x555555b2b818 <_PyRuntime+69368>) at Modules/main.c:379#16 0x0000555555846637 in pymain_run_python (exitcode=exitcode@entry=0x7fffffffe6c4) at Modules/main.c:610#17 0x00005555558468e3 in Py_RunMain () at Modules/main.c:689#18 0x000055555584695a in pymain_main (args=args@entry=0x7fffffffe720) at Modules/main.c:719#19 0x0000555555846a20 in Py_BytesMain (argc=<optimized out>, argv=<optimized out>) at Modules/main.c:743#20 0x000055555564c742 in main (argc=<optimized out>, argv=<optimized out>) at ./Programs/python.c:15

$ python -Xfaulthandler crash.py Traceback (most recent call last):  File "/home/.../crash.py", line 10, in main    pass  File "/home/.../crash.py", line 6, in tracefunc    1 / 0ZeroDivisionError: division by zeroThe above exception was the direct cause of the following exception:Traceback (most recent call last):  File "/home/.../crash.py", line 13, in <module>    main()SystemError: _PyEval_EvalFrameDefault returned a result with an exception set