Error on Mac 10.12

[ruozhiertong]

Env: macos10.12 , python3.9.0, pygame in /usr/local/lib/python3.9/site-packages (2.0.0)
When i type python3 main.py, there is a crash. Below is the info:
pygame 2.0.0 (SDL 2.0.12, python 3.9.0)
Hello from the pygame community. https://www.pygame.org/contribute.html
2020-11-23 18:26:35.411 Python[1396:30017] -[CAMetalLayer setDisplaySyncEnabled:]: unrecognized selector sent to instance 0x7fbf5f4aa840
2020-11-23 18:26:35.412 Python[1396:30017] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[CAMetalLayer setDisplaySyncEnabled:]: unrecognized selector sent to instance 0x7fbf5f4aa840'
*** First throw call stack:
(
0 CoreFoundation 0x00007fffd30dd57b __exceptionPreprocess + 171
1 libobjc.A.dylib 0x00007fffe83571da objc_exception_throw + 48
2 CoreFoundation 0x00007fffd315df14 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 CoreFoundation 0x00007fffd3050c93 forwarding + 1059
4 CoreFoundation 0x00007fffd30507e8 _CF_forwarding_prep_0 + 120
5 libSDL2-2.0.dylib 0x00000001028600d7 METAL_CreateRenderer + 2359
6 libSDL2-2.0.dylib 0x00000001027a272d SDL_CreateRenderer_REAL + 189
7 libSDL2-2.0.dylib 0x000000010281d629 SDL_CreateWindowTexture + 457
8 libSDL2-2.0.dylib 0x0000000102821a27 SDL_GetWindowSurface_REAL + 167
9 display.cpython-39-darwin.so 0x0000000102ab87a9 pg_set_mode + 2185
10 Python 0x00000001021e7027 cfunction_call + 122
11 Python 0x00000001021b6fc4 _PyObject_MakeTpCall + 266
12 Python 0x000000010225d87d call_function + 618
13 Python 0x000000010225a5c1 _PyEval_EvalFrameDefault + 25325
14 Python 0x00000001021b7691 function_code_fastcall + 101
15 Python 0x000000010225d79f call_function + 396
16 Python 0x0000000102254610 _PyEval_EvalFrameDefault + 828
17 Python 0x000000010225e389 _PyEval_EvalCode + 2122
18 Python 0x0000000102254212 PyEval_EvalCode + 66
19 Python 0x00000001022906e7 run_eval_code_obj + 110
20 Python 0x000000010228faae run_mod + 103
21 Python 0x000000010228e945 PyRun_FileExFlags + 238
22 Python 0x000000010228df2a PyRun_SimpleFileExFlags + 277
23 Python 0x00000001022a5dec Py_RunMain + 1843
24 Python 0x00000001022a60b5 pymain_main + 223
25 Python 0x00000001022a625b Py_BytesMain + 42
26 libdyld.dylib 0x00007fffe8c8c235 start + 1
27 ??? 0x0000000000000002 0x0 + 2
)
libc++abi.dylib: terminating with uncaught exception of type NSException
Abort trap: 6
Could u give me some advice for it?
Thx!

[Snoopy20221]

hi have you tried to re clone it