This is with the python3.9
package from apt (Python version 3.9.5). I just used the global root environment for that interpreter and didn’t pull in any conda at all.
I wasn’t thinking quite straight yesterday, should have immediately let gdb
print the backtrace. Here it is:
root@73e2508e7681:~# gdb --args python3.9-dbg -c 'import torch'
GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
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<http://www.gnu.org/software/gdb/bugs/>.
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Reading symbols from python3.9-dbg...
(gdb) run
Starting program: /usr/bin/python3.9-dbg -c import\ torch
warning: Error disabling address space randomization: Operation not permitted
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
_Py_INCREF (op=0x0) at ../Include/object.h:408
408 ../Include/object.h: No such file or directory.
(gdb) set pagination off
(gdb) bt
#0 _Py_INCREF (op=0x0) at ../Include/object.h:408
#1 type_qualname (type=0x147ebd0, context=0x0) at ../Objects/typeobject.c:479
#2 0x000000000065b2fb in getset_get (descr=descr@entry=0x7f192489fd10, obj=obj@entry=0x147ebd0, type=type@entry=0x45ebc90) at ../Objects/descrobject.c:185
#3 0x0000000000491d14 in type_getattro (type=0x147ebd0, name=0x7f18794f2b80) at ../Objects/typeobject.c:3345
#4 0x000000000046b155 in PyObject_GetAttr (v=v@entry=0x147ebd0, name=name@entry=0x7f18794f2b80) at ../Objects/object.c:890
#5 0x000000000046ce4a in PyObject_GetAttrString (v=0x147ebd0, name=<optimized out>) at ../Objects/object.c:795
#6 0x00007f18dbb487bd in pybind11::detail::accessor<pybind11::detail::accessor_policies::str_attr>::get_cache() const () from /usr/local/lib/python3.8/dist-packages/torch/lib/libtorch_python.so
#7 0x00007f18dbb4a9c1 in pybind11::cpp_function::initialize_generic(std::unique_ptr<pybind11::detail::function_record, pybind11::cpp_function::InitializingFunctionRecordDeleter>&&, char const*, std::type_info const* const*, unsigned long) () from /usr/local/lib/python3.8/dist-packages/torch/lib/libtorch_python.so
#8 0x00007f18dc2a25bc in pybind11::enum_<onnx_torch::TensorProto_DataType>::enum_<>(pybind11::handle const&, char const*) () from /usr/local/lib/python3.8/dist-packages/torch/lib/libtorch_python.so
#9 0x00007f18dc29cdee in torch::onnx::initONNXBindings(_object*) () from /usr/local/lib/python3.8/dist-packages/torch/lib/libtorch_python.so
#10 0x00007f18dbe479f4 in initModule () from /usr/local/lib/python3.8/dist-packages/torch/lib/libtorch_python.so
#11 0x000000000050f245 in _PyImport_LoadDynamicModuleWithSpec (spec=spec@entry=0x7f1924313910, fp=fp@entry=0x0) at ../Python/importdl.c:164
#12 0x000000000050cf8b in _imp_create_dynamic_impl (module=module@entry=0x7f1924819b90, spec=0x7f1924313910, file=<optimized out>) at ../Python/import.c:2297
#13 0x000000000050d11d in _imp_create_dynamic (module=0x7f1924819b90, args=0x7f1924313568, nargs=1) at ../Python/clinic/import.c.h:330
#14 0x000000000066a8fa in cfunction_vectorcall_FASTCALL (func=0x7f1924822b90, args=0x7f1924313568, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/methodobject.c:426
#15 0x000000000043302e in PyVectorcall_Call (callable=callable@entry=0x7f1924822b90, tuple=tuple@entry=0x7f1924313550, kwargs=kwargs@entry=0x7f1924311d10) at ../Include/object.h:630
#16 0x0000000000433316 in _PyObject_Call (tstate=0x13d29c0, callable=callable@entry=0x7f1924822b90, args=args@entry=0x7f1924313550, kwargs=kwargs@entry=0x7f1924311d10) at ../Objects/call.c:266
#17 0x000000000043338a in PyObject_Call (callable=callable@entry=0x7f1924822b90, args=args@entry=0x7f1924313550, kwargs=kwargs@entry=0x7f1924311d10) at ../Objects/call.c:293
#18 0x00000000004dfc98 in do_call_core (tstate=tstate@entry=0x13d29c0, func=func@entry=0x7f1924822b90, callargs=callargs@entry=0x7f1924313550, kwdict=kwdict@entry=0x7f1924311d10) at ../Python/ceval.c:5092
#19 0x00000000004ec2d1 in _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x14ef110, throwflag=<optimized out>) at ../Python/ceval.c:3580
#20 0x00000000004ee225 in _PyEval_EvalFrame (throwflag=0, f=0x14ef110, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#21 _PyEval_EvalCode (tstate=0x13d29c0, _co=0x7f19248865f0, globals=<optimized out>, locals=locals@entry=0x0, args=<optimized out>, argcount=2, kwnames=0x0, kwargs=0x14a7b70, kwcount=0, kwstep=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0, name=0x7f192486dd60, qualname=0x7f192486dd60) at ../Python/ceval.c:4327
#22 0x00000000004334db in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Include/object.h:630
#23 0x00000000004eb570 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775810, args=0x14a7b60, callable=0x7f192481f410, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#24 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775810, args=0x14a7b60, callable=0x7f192481f410) at ../Include/cpython/abstract.h:127
#25 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#26 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x14a79d0, throwflag=<optimized out>) at ../Python/ceval.c:3487
#27 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x14a79d0, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#28 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x7f19245ee8e0, nargs=2, globals=<optimized out>) at ../Objects/call.c:330
#29 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#30 0x00000000004eb7ef in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775810, args=0x7f19245ee8d0, callable=0x7f19247f5e10, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#31 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775810, args=0x7f19245ee8d0, callable=0x7f19247f5e10) at ../Include/cpython/abstract.h:127
#32 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#33 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x7f19245ee750, throwflag=<optimized out>) at ../Python/ceval.c:3504
#34 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x7f19245ee750, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#35 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x7f1924814bd8, nargs=1, globals=<optimized out>) at ../Objects/call.c:330
#36 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#37 0x00000000004eba55 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775809, args=0x7f1924814bd0, callable=0x7f192481feb0, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#38 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775809, args=0x7f1924814bd0, callable=0x7f192481feb0) at ../Include/cpython/abstract.h:127
#39 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#40 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x7f1924814a50, throwflag=<optimized out>) at ../Python/ceval.c:3518
#41 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x7f1924814a50, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#42 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x14d7ab0, nargs=1, globals=<optimized out>) at ../Objects/call.c:330
#43 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#44 0x00000000004eba55 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775809, args=0x14d7aa8, callable=0x7f1924820190, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#45 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775809, args=0x14d7aa8, callable=0x7f1924820190) at ../Include/cpython/abstract.h:127
#46 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#47 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x14d78f0, throwflag=<optimized out>) at ../Python/ceval.c:3518
#48 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x14d78f0, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#49 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x14a7518, nargs=2, globals=<optimized out>) at ../Objects/call.c:330
#50 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#51 0x00000000004eba55 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775810, args=0x14a7508, callable=0x7f1924823550, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#52 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775810, args=0x14a7508, callable=0x7f1924823550) at ../Include/cpython/abstract.h:127
#53 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#54 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x14a7370, throwflag=<optimized out>) at ../Python/ceval.c:3518
#55 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x14a7370, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#56 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x7ffc4d2e36e0, nargs=2, globals=<optimized out>) at ../Objects/call.c:330
#57 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#58 0x0000000000434104 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=2, args=0x7ffc4d2e36d0, callable=0x7f19248235f0, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#59 object_vacall (tstate=tstate@entry=0x13d29c0, base=base@entry=0x0, callable=0x7f19248235f0, vargs=vargs@entry=0x7ffc4d2e3748) at ../Objects/call.c:792
#60 0x0000000000434407 in _PyObject_CallMethodIdObjArgs (obj=0x0, name=name@entry=0x98a960 <PyId__find_and_load.17741>) at ../Objects/call.c:883
#61 0x0000000000509cf7 in import_find_and_load (tstate=tstate@entry=0x13d29c0, abs_name=abs_name@entry=0x7f1924730160) at ../Python/import.c:1771
#62 0x000000000050e0f1 in PyImport_ImportModuleLevelObject (name=name@entry=0x7f1924730160, globals=<optimized out>, locals=<optimized out>, fromlist=fromlist@entry=0x7f192471f190, level=0) at ../Python/import.c:1872
#63 0x00000000004dc88b in import_name (tstate=tstate@entry=0x13d29c0, f=f@entry=0x1424a20, name=name@entry=0x7f1924730160, fromlist=fromlist@entry=0x7f192471f190, level=level@entry=0x7f19248d3280) at ../Python/ceval.c:5193
#64 0x00000000004e955f in _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x1424a20, throwflag=<optimized out>) at ../Python/ceval.c:3097
#65 0x00000000004ee225 in _PyEval_EvalFrame (throwflag=0, f=0x1424a20, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#66 _PyEval_EvalCode (tstate=0x13d29c0, _co=0x7f1924729a00, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=argcount@entry=0, kwnames=0x0, kwargs=0x0, kwcount=0, kwstep=2, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0, name=0x0, qualname=0x0) at ../Python/ceval.c:4327
#67 0x00000000004ee393 in _PyEval_EvalCodeWithName (_co=<optimized out>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=argcount@entry=0, kwnames=<optimized out>, kwargs=0x0, kwcount=0, kwstep=2, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0, name=0x0, qualname=0x0) at ../Python/ceval.c:4359
#68 0x00000000004ee3d6 in PyEval_EvalCodeEx (_co=_co@entry=0x7f1924729a00, globals=globals@entry=0x7f192470f290, locals=locals@entry=0x7f192470f290, args=args@entry=0x0, argcount=argcount@entry=0, kws=kws@entry=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:4375
#69 0x00000000004ee408 in PyEval_EvalCode (co=co@entry=0x7f1924729a00, globals=globals@entry=0x7f192470f290, locals=locals@entry=0x7f192470f290) at ../Python/ceval.c:826
#70 0x000000000069d3a2 in builtin_exec_impl (module=module@entry=0x7f192487db90, source=0x7f1924729a00, globals=0x7f192470f290, locals=0x7f192470f290) at ../Python/bltinmodule.c:1035
#71 0x000000000069d4c4 in builtin_exec (module=0x7f192487db90, args=0x7f1924731338, nargs=2) at ../Python/clinic/bltinmodule.c.h:396
#72 0x000000000066a8fa in cfunction_vectorcall_FASTCALL (func=0x7f192487e3b0, args=0x7f1924731338, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/methodobject.c:426
#73 0x000000000043302e in PyVectorcall_Call (callable=callable@entry=0x7f192487e3b0, tuple=tuple@entry=0x7f1924731320, kwargs=kwargs@entry=0x7f192470f2f0) at ../Include/object.h:630
#74 0x0000000000433316 in _PyObject_Call (tstate=0x13d29c0, callable=callable@entry=0x7f192487e3b0, args=args@entry=0x7f1924731320, kwargs=kwargs@entry=0x7f192470f2f0) at ../Objects/call.c:266
#75 0x000000000043338a in PyObject_Call (callable=callable@entry=0x7f192487e3b0, args=args@entry=0x7f1924731320, kwargs=kwargs@entry=0x7f192470f2f0) at ../Objects/call.c:293
#76 0x00000000004dfc98 in do_call_core (tstate=tstate@entry=0x13d29c0, func=func@entry=0x7f192487e3b0, callargs=callargs@entry=0x7f1924731320, kwdict=kwdict@entry=0x7f192470f2f0) at ../Python/ceval.c:5092
#77 0x00000000004ec2d1 in _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x7f19246fab30, throwflag=<optimized out>) at ../Python/ceval.c:3580
#78 0x00000000004ee225 in _PyEval_EvalFrame (throwflag=0, f=0x7f19246fab30, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#79 _PyEval_EvalCode (tstate=0x13d29c0, _co=0x7f19248865f0, globals=<optimized out>, locals=locals@entry=0x0, args=<optimized out>, argcount=3, kwnames=0x0, kwargs=0x7f1924791798, kwcount=0, kwstep=1, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0, name=0x7f192486dd60, qualname=0x7f192486dd60) at ../Python/ceval.c:4327
#80 0x00000000004334db in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Include/object.h:630
#81 0x00000000004eb570 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775811, args=0x7f1924791780, callable=0x7f192481f410, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#82 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775811, args=0x7f1924791780, callable=0x7f192481f410) at ../Include/cpython/abstract.h:127
#83 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#84 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x7f19247915f0, throwflag=<optimized out>) at ../Python/ceval.c:3487
#85 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x7f19247915f0, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#86 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x7f192475e7e0, nargs=2, globals=<optimized out>) at ../Objects/call.c:330
#87 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#88 0x00000000004eb7ef in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775810, args=0x7f192475e7d0, callable=0x7f19247f0a50, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#89 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775810, args=0x7f192475e7d0, callable=0x7f19247f0a50) at ../Include/cpython/abstract.h:127
#90 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#91 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x7f192475e650, throwflag=<optimized out>) at ../Python/ceval.c:3504
#92 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x7f192475e650, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#93 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x1414470, nargs=1, globals=<optimized out>) at ../Objects/call.c:330
#94 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#95 0x00000000004eba55 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775809, args=0x1414468, callable=0x7f1924820190, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#96 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775809, args=0x1414468, callable=0x7f1924820190) at ../Include/cpython/abstract.h:127
#97 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#98 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x14142b0, throwflag=<optimized out>) at ../Python/ceval.c:3518
#99 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x14142b0, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#100 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x7f19247151f8, nargs=2, globals=<optimized out>) at ../Objects/call.c:330
#101 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#102 0x00000000004eba55 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=9223372036854775810, args=0x7f19247151e8, callable=0x7f1924823550, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#103 PyObject_Vectorcall (kwnames=0x0, nargsf=9223372036854775810, args=0x7f19247151e8, callable=0x7f1924823550) at ../Include/cpython/abstract.h:127
#104 call_function (kwnames=0x0, oparg=<optimized out>, pp_stack=<synthetic pointer>, tstate=0x13d29c0) at ../Python/ceval.c:5072
#105 _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x7f1924715050, throwflag=<optimized out>) at ../Python/ceval.c:3518
#106 0x0000000000432d15 in _PyEval_EvalFrame (throwflag=0, f=0x7f1924715050, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#107 function_code_fastcall (tstate=0x13d29c0, co=<optimized out>, args=0x7ffc4d2e4610, nargs=2, globals=<optimized out>) at ../Objects/call.c:330
#108 0x00000000004335d0 in _PyFunction_Vectorcall (func=<optimized out>, stack=<optimized out>, nargsf=<optimized out>, kwnames=<optimized out>) at ../Objects/call.c:367
#109 0x0000000000434104 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=2, args=0x7ffc4d2e4600, callable=0x7f19248235f0, tstate=0x13d29c0) at ../Include/cpython/abstract.h:118
#110 object_vacall (tstate=tstate@entry=0x13d29c0, base=base@entry=0x0, callable=0x7f19248235f0, vargs=vargs@entry=0x7ffc4d2e4678) at ../Objects/call.c:792
#111 0x0000000000434407 in _PyObject_CallMethodIdObjArgs (obj=0x0, name=name@entry=0x98a960 <PyId__find_and_load.17741>) at ../Objects/call.c:883
#112 0x0000000000509cf7 in import_find_and_load (tstate=tstate@entry=0x13d29c0, abs_name=abs_name@entry=0x7f19247c96d0) at ../Python/import.c:1771
#113 0x000000000050e0f1 in PyImport_ImportModuleLevelObject (name=name@entry=0x7f19247c96d0, globals=<optimized out>, locals=<optimized out>, fromlist=fromlist@entry=0x982bc0 <_Py_NoneStruct>, level=0) at ../Python/import.c:1872
#114 0x00000000004dc88b in import_name (tstate=tstate@entry=0x13d29c0, f=f@entry=0x7f1924814850, name=name@entry=0x7f19247c96d0, fromlist=fromlist@entry=0x982bc0 <_Py_NoneStruct>, level=level@entry=0x7f19248d3280) at ../Python/ceval.c:5193
#115 0x00000000004e955f in _PyEval_EvalFrameDefault (tstate=0x13d29c0, f=0x7f1924814850, throwflag=<optimized out>) at ../Python/ceval.c:3097
#116 0x00000000004ee225 in _PyEval_EvalFrame (throwflag=0, f=0x7f1924814850, tstate=0x13d29c0) at ../Include/internal/pycore_ceval.h:40
#117 _PyEval_EvalCode (tstate=0x13d29c0, _co=0x7f19247d8450, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=argcount@entry=0, kwnames=0x0, kwargs=0x0, kwcount=0, kwstep=2, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0, name=0x0, qualname=0x0) at ../Python/ceval.c:4327
#118 0x00000000004ee393 in _PyEval_EvalCodeWithName (_co=<optimized out>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=argcount@entry=0, kwnames=<optimized out>, kwargs=0x0, kwcount=0, kwstep=2, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0, name=0x0, qualname=0x0) at ../Python/ceval.c:4359
#119 0x00000000004ee3d6 in PyEval_EvalCodeEx (_co=_co@entry=0x7f19247d8450, globals=globals@entry=0x7f19247cf410, locals=locals@entry=0x7f19247cf410, args=args@entry=0x0, argcount=argcount@entry=0, kws=kws@entry=0x0, kwcount=0, defs=0x0, defcount=0, kwdefs=0x0, closure=0x0) at ../Python/ceval.c:4375
#120 0x00000000004ee408 in PyEval_EvalCode (co=co@entry=0x7f19247d8450, globals=globals@entry=0x7f19247cf410, locals=locals@entry=0x7f19247cf410) at ../Python/ceval.c:826
#121 0x000000000052796d in run_eval_code_obj (tstate=tstate@entry=0x13d29c0, co=co@entry=0x7f19247d8450, globals=globals@entry=0x7f19247cf410, locals=locals@entry=0x7f19247cf410) at ../Python/pythonrun.c:1219
#122 0x0000000000527df3 in run_mod (mod=mod@entry=0x1445958, filename=filename@entry=0x7f192470f0a0, globals=globals@entry=0x7f19247cf410, locals=locals@entry=0x7f19247cf410, flags=flags@entry=0x7ffc4d2e4c28, arena=arena@entry=0x7f19247cf760) at ../Python/pythonrun.c:1240
#123 0x000000000052a07a in PyRun_StringFlags (str=str@entry=0x7f19247c5fb0 "import torch\n", start=start@entry=257, globals=0x7f19247cf410, locals=0x7f19247cf410, flags=flags@entry=0x7ffc4d2e4c28) at ../Python/pythonrun.c:1106
#124 0x000000000052a101 in PyRun_SimpleStringFlags (command=0x7f19247c5fb0 "import torch\n", flags=flags@entry=0x7ffc4d2e4c28) at ../Python/pythonrun.c:496
#125 0x0000000000423181 in pymain_run_command (command=<optimized out>, cf=cf@entry=0x7ffc4d2e4c28) at ../Modules/main.c:246
#126 0x0000000000424052 in pymain_run_python (exitcode=exitcode@entry=0x7ffc4d2e4c5c) at ../Modules/main.c:589
#127 0x0000000000424209 in Py_RunMain () at ../Modules/main.c:677
#128 0x000000000042425e in pymain_main (args=args@entry=0x7ffc4d2e4ca0) at ../Modules/main.c:707
#129 0x00000000004242e2 in Py_BytesMain (argc=<optimized out>, argv=<optimized out>) at ../Modules/main.c:731
#130 0x0000000000422d63 in main (argc=<optimized out>, argv=<optimized out>) at ../Programs/python.c:15
And that explains what went wrong: Somehow Python 3.8 got mixed in there ( #10 0x00007f18dbe479f4 in initModule () from /usr/local/lib/python3.8/dist-packages/torch/lib/libtorch_python.so
). I really need to separate the environments more cleanly.