. Thread 1 (LWP 17190): #0 0x00007f6e6de50395 in ?? () No symbol table info available. #1 0x00007f6e6de53afb in ?? () No symbol table info available. #2 0x00007f6e6d6f1630 in ?? () No symbol table info available. #3 0x000000000048841a in ?? () at ../Python/sysmodule.c:231 No symbol table info available. #4 0x00007f6e6de20ba0 in ?? () No symbol table info available. #5 0x00007f6e6f69f000 in ?? () No symbol table info available. #6 0x0000000000000000 in ?? () No symbol table info available.