Process 51270 launched: './python' (x86_64)
Process 51270 stopped
* thread #1: tid = 0x5c8677, 0x00000001000c1af8 python`_PyObject_Alloc(use_calloc=0, ctx=<unavailable>, nelem=<unavailable>, elsize=<unavailable>) + 24 at obmalloc.c:1170, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x7fff5ebffff8)
    frame #0: 0x00000001000c1af8 python`_PyObject_Alloc(use_calloc=0, ctx=<unavailable>, nelem=<unavailable>, elsize=<unavailable>) + 24 at obmalloc.c:1170
   1167
   1168	static void *
   1169	_PyObject_Alloc(int use_calloc, void *ctx, size_t nelem, size_t elsize)
-> 1170	{
   1171	    size_t nbytes;
   1172	    block *bp;
   1173	    poolp pool;
(lldb) bt
* thread #1: tid = 0x5c8677, 0x00000001000c1af8 python`_PyObject_Alloc(use_calloc=0, ctx=<unavailable>, nelem=<unavailable>, elsize=<unavailable>) + 24 at obmalloc.c:1170, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=2, address=0x7fff5ebffff8)
  * frame #0: 0x00000001000c1af8 python`_PyObject_Alloc(use_calloc=0, ctx=<unavailable>, nelem=<unavailable>, elsize=<unavailable>) + 24 at obmalloc.c:1170
    frame #1: 0x00000001000c0ec8 python`_PyObject_Malloc(ctx=0x0000000000000000, nbytes=112) + 40 at obmalloc.c:1386
    frame #2: 0x00000001000c03e9 python`_PyMem_DebugAlloc(use_calloc=0, ctx=0x0000000100390898, nbytes=80) + 153 at obmalloc.c:1838
    frame #3: 0x00000001000be981 python`_PyMem_DebugMalloc(ctx=0x0000000100390898, nbytes=80) + 33 at obmalloc.c:1861
    frame #4: 0x00000001000bf3c1 python`PyObject_Malloc(size=80) + 65 at obmalloc.c:386
    frame #5: 0x000000010028c87e python`_PyObject_GC_Alloc(use_calloc=0, basicsize=56) + 110 at gcmodule.c:1696
    frame #6: 0x000000010028c809 python`_PyObject_GC_Malloc(basicsize=56) + 25 at gcmodule.c:1718
    frame #7: 0x000000010028ca6d python`_PyObject_GC_NewVar(tp=0x0000000100393990, nitems=2) + 109 at gcmodule.c:1747
    frame #8: 0x00000001000d6c82 python`PyTuple_New(size=2) + 338 at tupleobject.c:104
    frame #9: 0x00000001001d7e26 python`map_next(lz=0x000000010cebbae8) + 38 at bltinmodule.c:1162
    frame #10: 0x000000010001072c python`PyIter_Next(iter=0x000000010cebbae8) + 44 at abstract.c:2760
    frame #11: 0x00000001001d7e71 python`map_next(lz=0x000000010cebbbb8) + 113 at bltinmodule.c:1167
    frame #12: 0x000000010001072c python`PyIter_Next(iter=0x000000010cebbbb8) + 44 at abstract.c:2760
    frame #13: 0x00000001001d7e71 python`map_next(lz=0x000000010cebbc88) + 113 at bltinmodule.c:1167
    frame #14: 0x000000010001072c python`PyIter_Next(iter=0x000000010cebbc88) + 44 at abstract.c:2760
    frame #15: 0x00000001001d7e71 python`map_next(lz=0x000000010cebbd58) + 113 at bltinmodule.c:1167
    frame #16: 0x000000010001072c python`PyIter_Next(iter=0x000000010cebbd58) + 44 at abstract.c:2760
    frame #17: 0x00000001001d7e71 python`map_next(lz=0x000000010cebbe28) + 113 at bltinmodule.c:1167
    frame #18: 0x000000010001072c python`PyIter_Next(iter=0x000000010cebbe28) + 44 at abstract.c:2760
    frame #19: 0x00000001001d7e71 python`map_next(lz=0x000000010cebbef8) + 113 at bltinmodule.c:1167
    frame #20: 0x000000010001072c python`PyIter_Next(iter=0x000000010cebbef8) + 44 at abstract.c:2760
    frame #21: 0x00000001001d7e71 python`map_next(lz=0x000000010cebd058) + 113 at bltinmodule.c:1167
    frame #22: 0x000000010001072c python`PyIter_Next(iter=0x000000010cebd058) + 44 at abstract.c:2760
    frame #23: 0x00000001001d7e71 python`map_next(lz=0x000000010cebd128) + 113 at bltinmodule.c:1167
    frame #24: 0x000000010001072c python`PyIter_Next(iter=0x000000010cebd128) + 44 at abstract.c:2760
[...]