crashing when opening it in the Mac Catalina Version 10.15 （19A583）

[chenxofhit]

Describe the bug
crashing as the title has described

Additional context

A few seconds after the app crashed, the Mac OS issue report window appears, in which with the following report content in the front lines:

Process: Python [8888]
Path: /Applications/scOrange.app/Contents/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/Contents/MacOS/Python
Identifier: Python
Version: ???
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Python [8888]
User ID: 501

Date/Time: 2019-10-24 21:11:13.854 +0800
OS Version: Mac OS X 10.15 (19A583)
Report Version: 12
Anonymous UUID: 6B1A9F5C-8FE8-9C1E-1D1B-B87E7C8CE2C0

Time Awake Since Boot: 8700 seconds

System Integrity Protection: disabled

Crashed Thread: 7 Qt bearer thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000013ff7090
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [8888]

VM Regions Near 0x13ff7090:
-->
__TEXT 0000000100000000-0000000100001000 [ 4K] r-x/rwx SM=COW /Applications/scOrange.app/Contents/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/Contents/MacOS/Python

Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x0000000101427182 semaphore_wait_trap + 10
1 QtCore 0x00000001049db108 QBasicMutex::lockInternal(int) + 936
2 QtCore 0x00000001049dad3c QMutex::lock() + 108
3 QtNetwork 0x000000012c43b44d QNetworkConfigurationManagerPrivate::enablePolling() + 29
4 QtNetwork 0x000000012c437ed6 QNetworkConfigurationManager::QNetworkConfigurationManager(QObject*) + 246
5 QtNetwork 0x000000012c3e9bc7 QNetworkAccessManager::createRequest(QNetworkAccessManager::Operation, QNetworkRequest const&, QIODevice*) + 951
6 QtNetwork.so 0x00000001369f95f5 sipQNetworkAccessManager::createRequest(QNetworkAccessManager::Operation, QNetworkRequest const&, QIODevice*) + 117
7 QtNetwork 0x000000012c3e827e QNetworkAccessManager::get(QNetworkRequest const&) + 30
8 QtNetwork.so 0x0000000136a1da03 meth_QNetworkAccessManager_get(_object*, _object*) + 99
9 org.python.python 0x0000000100761e7d _PyMethodDef_RawFastCallKeywords + 749
10 org.python.python 0x0000000100761fa1 _PyCFunction_FastCallKeywords + 49
11 org.python.python 0x00000001008340a9 call_function + 681
12 org.python.python 0x000000010083bf41 _PyEval_EvalFrameDefault + 31025
13 org.python.python 0x0000000100760c87 function_code_fastcall + 135
14 org.python.python 0x0000000100834090 call_function + 656
15 org.python.python 0x000000010083bf41 _PyEval_EvalFrameDefault + 31025
16 org.python.python 0x00000001008338f8 _PyEval_EvalCodeWithName + 3048
17 org.python.python 0x0000000100760e1a _PyFunction_FastCallKeywords + 218
18 org.python.python 0x0000000100834090 call_function + 656
19 org.python.python 0x000000010083bf41 _PyEval_EvalFrameDefault + 31025
20 org.python.python 0x00000001008338f8 _PyEval_EvalCodeWithName + 3048
21 org.python.python 0x00000001007610a5 _PyFunction_FastCallDict + 469
22 org.python.python 0x00000001007617c0 _PyObject_Call_Prepend + 208
23 org.python.python 0x00000001007cb46d slot_tp_init + 189
24 org.python.python 0x00000001007bb714 type_call + 212
25 org.python.python 0x0000000100762116 _PyObject_FastCallKeywords + 342
26 org.python.python 0x0000000100833eaf call_function + 175
27 org.python.python 0x00000001008387ba _PyEval_EvalFrameDefault + 16810
28 org.python.python 0x0000000100760c87 function_code_fastcall + 135
29 org.python.python 0x0000000100834090 call_function + 656
30 org.python.python 0x000000010083a152 _PyEval_EvalFrameDefault + 23362
31 org.python.python 0x0000000100760c87 function_code_fastcall + 135
32 org.python.python 0x0000000100834090 call_function + 656
33 org.python.python 0x000000010083a152 _PyEval_EvalFrameDefault + 23362
34 org.python.python 0x0000000100760c87 function_code_fastcall + 135
35 org.python.python 0x0000000100834090 call_function + 656
36 org.python.python 0x000000010083bf41 _PyEval_EvalFrameDefault + 31025
37 org.python.python 0x0000000100760c87 function_code_fastcall + 135
38 org.python.python 0x0000000100834090 call_function + 656
39 org.python.python 0x000000010083bf41 _PyEval_EvalFrameDefault + 31025
40 org.python.python 0x0000000100760c87 function_code_fastcall + 135
41 org.python.python 0x0000000100834090 call_function + 656
42 org.python.python 0x000000010083bf41 _PyEval_EvalFrameDefault + 31025
43 org.python.python 0x00000001008338f8 _PyEval_EvalCodeWithName + 3048
44 org.python.python 0x0000000100760e1a _PyFunction_FastCallKeywords + 218
45 org.python.python 0x0000000100834090 call_function + 656
46 org.python.python 0x000000010083bf41 _PyEval_EvalFrameDefault + 31025
47 org.python.python 0x0000000100760c87 function_code_fastcall + 135
48 org.python.python 0x0000000100834090 call_function + 656
49 org.python.python 0x0000000100835c24 _PyEval_EvalFrameDefault + 5652
50 org.python.python 0x0000000100760c87 function_code_fastcall + 135
51 org.python.python 0x0000000100834090 call_function + 656
52 org.python.python 0x0000000100835c24 _PyEval_EvalFrameDefault + 5652
53 org.python.python 0x00000001008338f8 _PyEval_EvalCodeWithName + 3048
54 org.python.python 0x0000000100833ad4 PyEval_EvalCode + 100
55 org.python.python 0x000000010083046f builtin_exec + 639
56 org.python.python 0x0000000100761efb _PyMethodDef_RawFastCallKeywords + 875
57 org.python.python 0x0000000100761fa1 _PyCFunction_FastCallKeywords + 49
58 org.python.python 0x00000001008340a9 call_function + 681
59 org.python.python 0x000000010083a152 _PyEval_EvalFrameDefault + 23362
60 org.python.python 0x00000001008338f8 _PyEval_EvalCodeWithName + 3048
61 org.python.python 0x0000000100760e1a _PyFunction_FastCallKeywords + 218
62 org.python.python 0x0000000100834090 call_function + 656
63 org.python.python 0x000000010083a152 _PyEval_EvalFrameDefault + 23362
64 org.python.python 0x00000001008338f8 _PyEval_EvalCodeWithName + 3048
65 org.python.python 0x00000001007610a5 _PyFunction_FastCallDict + 469
66 org.python.python 0x0000000100894361 pymain_run_module + 161
67 org.python.python 0x000000010089a34b pymain_main + 1451
68 org.python.python 0x000000010089ab5b _Py_UnixMain + 91
69 PythonApp 0x0000000100000f14 0x100000000 + 3860