Segmentation Error for PySide&Qt4 in Mac OS 10.15.7 Catalina

[PastCodeFarmer]

We freeze our python script (using PySide&Qt4) with cx_Freeze 5.1.1 in Mac amd64, while our python version is 2.7.16. And alter all dynamic lib references into the right relative path with install_name_tool . The whole procedure works well in Mac OS 10.13 High Sierra , but fail in 10.15.7 Catalina .

When we run the freezed binary, the terminal tells "Segmentation Error". Below is the Apple Crash Report, and we can know it blocks in the import of PySide.QtCore .

Since now everything is in black box, can somebody tell us how to go forward? Thanks much for your help.

Time Awake Since Boot: 68000 seconds

System Integrity Protection: enabled

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

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)
Exception Codes:       KERN_INVALID_ADDRESS at 0x00000000000001e0
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Segmentation fault: 11
Termination Reason:    Namespace SIGNAL, Code 0xb
Terminating Process:   exc handler [7962]

VM Regions Near 0x1e0:
--> 
    __TEXT                 0000000108675000-0000000108676000 [    4K] r-x/rwx SM=COW  

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libshiboken-python2.7.1.2.dylib	0x000000010b052d6a google::dense_hashtable<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, SbkConverter*>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::hash<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, google::dense_hash_map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, SbkConverter*, std::__1::hash<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::equal_to<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<SbkConverter*> >::SelectKey, google::dense_hash_map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, SbkConverter*, std::__1::hash<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::equal_to<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<SbkConverter*> >::SetKey, std::__1::equal_to<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<SbkConverter*> >::find_position(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) const + 250
1   libshiboken-python2.7.1.2.dylib	0x000000010b053222 google::dense_hashtable<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, SbkConverter*>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::hash<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, google::dense_hash_map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, SbkConverter*, std::__1::hash<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::equal_to<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<SbkConverter*> >::SelectKey, google::dense_hash_map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, SbkConverter*, std::__1::hash<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::equal_to<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<SbkConverter*> >::SetKey, std::__1::equal_to<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<SbkConverter*> >::insert_noresize(std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, SbkConverter*> const&) + 34
2   libshiboken-python2.7.1.2.dylib	0x000000010b04fd35 Shiboken::Conversions::registerConverterName(SbkConverter*, char const*) + 405
3   libpyside-python2.7.1.2.dylib 	0x000000010ad3f3bf PySide::SignalManager::SignalManager() + 223
4   libpyside-python2.7.1.2.dylib 	0x000000010ad3f6da PySide::SignalManager::instance() + 58
5   QtCore.so                     	0x000000010ab766b4 initQtCore + 6836
6   Python                        	0x000000010871c1be _PyImport_LoadDynamicModule + 140
7   Python                        	0x000000010871aeba import_submodule + 267
8   Python                        	0x000000010871ace2 ensure_fromlist + 329
9   Python                        	0x0000000108719d2b PyImport_ImportModuleLevel + 1361
10  Python                        	0x00000001086fb9d2 builtin___import__ + 135
11  Python                        	0x0000000108686855 PyObject_Call + 99
12  Python                        	0x000000010870a513 PyEval_CallObjectWithKeywords + 165
13  Python                        	0x000000010870570c PyEval_EvalFrameEx + 20804
14  Python                        	0x000000010870ac52 fast_function + 264

[marcelotduarte]

I converted the issue to a discussion because this is not an issue. We do not support python 2.7 for a long time. PySide is not supported by their team and by cx_Freeze. We have hooks to support PyQt5 and PySide2. I suggest you try to convert your app to python 3.7 or 3.8 for example, test, and if have problems to freeze I can help you. There is a package that can help you to convert to newer python: pyupgrade