#0 0x00000000004dd444 in visit_decref () at ../Modules/gcmodule.c:373 No locals. #1 0x00007f140000007e in ?? () No symbol table info available. #2 0x00007f14cc925fcb in ?? () No symbol table info available. #3 0x0000000000000009 in ?? () No symbol table info available. #4 0x000000000225ccb8 in ?? () No symbol table info available. #5 0x0000000000000000 in ?? () No symbol table info available.