Crash upon re-playing with Python plugin


hotreload works fine, but if stop playing, and re-play in Unity Editor, it crashes.

CODE:
void InitPy()
{
    System::String msg= System::String("py_start");
    UnityEngine::Debug::Log(msg);
    py::initialize_interpreter(true);
    //py::scoped_interpreter guard{};
    try{
        py::object mainScope = py::module::import("__main__").attr("__dict__");
        py::exec(\
                 "from clr import UnityEngine\n"
                 "UnityEngine.Debug.Log('hello')\n"
                 "import fast_calc\n"
                 "with open('pyinit.log', 'w') as f:\n"
                 "    f.write(str(fast_calc.add(1, 2)))\n", mainScope); 
    }
    catch(const py::error_already_set& exc)
    {
        System::String msg= System::String(exc.what());
        UnityEngine::Debug::Log(msg);
        PyErr_Print();
    }
    catch(const std::exception &exc)
    {
        System::String msg= System::String(exc.what());
        UnityEngine::Debug::Log(msg);
        //\npy::finalize_interpreter();
    }

    py::finalize_interpreter();
    System::String msg2= System::String("py_exit");
    UnityEngine::Debug::Log(msg2);
}

Process:               Unity [41049]
Path:                  /Applications/Unity/Unity.app/Contents/MacOS/Unity
Identifier:            com.unity3d.UnityEditor5.x
Version:               Unity version 2018.4.5f1 (2018.4.5f1)
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Unity [41049]
User ID:               501

Date/Time:             2019-08-03 05:50:25.942 +0800
OS Version:            Mac OS X 10.14.6 (18G84)
Report Version:        12
Anonymous UUID:        6DB50D53-DA47-9FD4-6E53-08D77FBA2524

Time Awake Since Boot: 61000 seconds

System Integrity Protection: disabled

Crashed Thread:        0  CrBrowserMain  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGABRT)
Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000169b118c0
Exception Note:        EXC_CORPSE_NOTIFY

VM Regions Near 0x169b118c0:
    VM_ALLOCATE            0000000169884000-0000000169894000 [   64K] rwx/rwx SM=PRV  
--> 
    __TEXT                 0000000169ba0000-0000000169d24000 [ 1552K] r-x/rwx SM=COW  /usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7/Python

Application Specific Information:
abort() called

Thread 0 Crashed:: CrBrowserMain  Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib          0x00007fff6fd102c6 __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fff6fdcbbf1 pthread_kill + 284
2   libsystem_c.dylib               0x00007fff6fc7a6a6 abort + 127
3   com.unity3d.UnityEditor5.x      0x0000000101053a21 HandleSignal(int, __siginfo*, void*) + 81
4   libmono.0.dylib                 0x000000016fac0bce mono_chain_signal + 93
5   libmono.0.dylib                 0x000000016fa07fd2 mono_sigsegv_signal_handler + 210
6   libsystem_platform.dylib        0x00007fff6fdc0b5d _sigtramp + 29
7   com.unity3d.UnityEditor5.x      0x0000000100589820 mpi_montmul + 1424
8   org.python.python               0x0000000169bff9d2 PyUnicode_FromString + 14
9   org.python.python               0x0000000169c7a9e2 _PySys_BeginInit + 1481
10  org.python.python               0x0000000169c6c056 _Py_InitializeCore_impl + 775
11  org.python.python               0x0000000169c6c505 _Py_InitializeCore + 184
12  org.python.python               0x0000000169c6d222 _Py_InitializeFromConfig + 50
13  org.python.python               0x0000000169c6d34c Py_InitializeEx + 74
14  NativeScript                    0x0000000169783e36 pybind11::initialize_interpreter(bool) + 70 (embed.h:109)
15  NativeScript                    0x0000000169783b2c InitPy + 60 (Game.cpp:69)
16  NativeScript                    0x000000016978462a PluginMain(void*, int, bool) + 314 (Game.cpp:130)
17  NativeScript                    0x00000001697d6c25 Init + 2117 (Bindings.cpp:6234)
18  ???                             0x0000000169671ce7 0 + 6063332583
19  ???                             0x0000000169670f99 0 + 6063329177
20  ???                             0x000000016966d1ad 0 + 6063313325
21  ???                             0x000000016966b34b 0 + 6063305547
22  ???                             0x000000013e88907a 0 + 5344104570
23  libmono.0.dylib                 0x000000016fa09c5a 0x16fa00000 + 40026
24  libmono.0.dylib                 0x000000016fb3685e mono_runtime_invoke + 117
25  com.unity3d.UnityEditor5.x      0x000000010108416a ScriptingInvocation::Invoke(ScriptingExceptionPtr*, bool) + 106
26  com.unity3d.UnityEditor5.x      0x000000010108401b ScriptingInvocation::InvokeChecked(ScriptingExceptionPtr*) + 59
27  com.unity3d.UnityEditor5.x      0x00000001010373d0 MonoBehaviour::CallMethodInactive(ScriptingMethodPtr) + 592
28  com.unity3d.UnityEditor5.x      0x000000010103c078 MonoBehaviour::CallAwake() + 120
29  com.unity3d.UnityEditor5.x      0x000000010103c660 MonoBehaviour::AddToManager() + 384
30  com.unity3d.UnityEditor5.x      0x00000001010ed29c AwakeFromLoadQueue::InvokePersistentManagerAwake(AwakeFromLoadQueue::Item*, unsigned int, AwakeFromLoadMode) + 796
31  com.unity3d.UnityEditor5.x      0x00000001010ece36 AwakeFromLoadQueue::PersistentManagerAwakeFromLoad(int, AwakeFromLoadMode) + 342
32  com.unity3d.UnityEditor5.x      0x0000000100d6be29 LoadSceneOperation::CompleteAwakeSequence() + 649
33  com.unity3d.UnityEditor5.x      0x0000000100d6a522 LoadSceneOperation::IntegrateMainThread() + 514
34  com.unity3d.UnityEditor5.x      0x0000000100d6dc32 PreloadManager::UpdatePreloadingSingleStep(PreloadManager::UpdatePreloadingFlags, int) + 530
35  com.unity3d.UnityEditor5.x      0x0000000100d6e841 PreloadManager::WaitForAllAsyncOperationsToComplete() + 145
36  com.unity3d.UnityEditor5.x      0x000000010137ed90 EditorSceneManager::RestoreSceneBackups(std::__1::vector<EditorSceneBackup, stl_allocator<EditorSceneBackup, (MemLabelIdentifier)111, 16> >&, EditorSceneManager::PlayModeChange, bool) + 1776
37  com.unity3d.UnityEditor5.x      0x00000001019e10be PlayerLoopController::EnterPlayMode(bool) + 590
38  com.unity3d.UnityEditor5.x      0x00000001019d940d PlayerLoopController::SetIsPlaying(bool) + 269
39  com.unity3d.UnityEditor5.x      0x00000001019d81bd Application::TickTimer() + 6909
40  com.unity3d.UnityEditor5.x      0x0000000100701dce -[EditorApplication TickTimer] + 142
41  com.apple.Foundation            0x00007fff45f30c3b __NSFireTimer + 80
42  com.apple.CoreFoundation        0x00007fff43ca3060 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
43  com.apple.CoreFoundation        0x00007fff43ca2c0c __CFRunLoopDoTimer + 851
44  com.apple.CoreFoundation        0x00007fff43ca2752 __CFRunLoopDoTimers + 330
45  com.apple.CoreFoundation        0x00007fff43c83962 __CFRunLoopRun + 2130
46  com.apple.CoreFoundation        0x00007fff43c82ebe CFRunLoopRunSpecific + 455
47  com.apple.HIToolbox             0x00007fff42ee21ab RunCurrentEventLoopInMode + 292
48  com.apple.HIToolbox             0x00007fff42ee1ded ReceiveNextEventCommon + 355
49  com.apple.HIToolbox             0x00007fff42ee1c76 _BlockUntilNextEventMatchingListInModeWithFilter + 64
50  com.apple.AppKit                0x00007fff4127a79d _DPSNextEvent + 1135
51  com.apple.AppKit                0x00007fff4127948b -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1361
52  com.apple.AppKit                0x00007fff412735a8 -[NSApplication run] + 699
53  com.apple.AppKit                0x00007fff41262ae8 NSApplicationMain + 777
54  com.unity3d.UnityEditor5.x      0x000000010072a0fc EditorMain(int, char const**) + 844
55  com.unity3d.UnityEditor5.x      0x000000010072a579 main + 9
56  libdyld.dylib                   0x00007fff6fbd53d5 start + 1

Thread 1:
0   libsystem_pthread.dylib         0x00007fff6fdc83f0 start_wqthread + 0

Thread 2:: Profiler.Dispatcher
0   libsystem_kernel.dylib          0x00007fff6fd0a266 semaphore_wait_trap + 10
1   libdispatch.dylib               0x00007fff6fb88bd9 _dispatch_sema4_wait + 16
2   libdispatch.dylib               0x00007fff6fb8939f _dispatch_semaphore_wait_slow + 98
3   com.unity3d.UnityEditor5.x      0x0000000102a5a7b8 PlatformSemaphore::WaitForSignal() + 24
4   com.unity3d.UnityEditor5.x      0x0000000100f3febc profiling::Dispatcher::ThreadFunc(void*) + 76
5   com.unity3d.UnityEditor5.x      0x0000000100e71a62 Thread::RunThreadWrapper(void*) + 1282
6   libsystem_pthread.dylib         0x00007fff6fdc92eb _pthread_body + 126
7   libsystem_pthread.dylib         0x00007fff6fdcc249 _pthread_start + 66
8   libsystem_pthread.dylib         0x00007fff6fdc840d thread_start + 13
jacksondunstan / UnityNativeScripting

Crash upon re-playing with Python plugin #35
