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Thread 2 (LWP 1694):
#0  0x00007f1fcc253df1 in ?? ()
No symbol table info available.
#1  0x00007f1fcce4cea0 in ?? ()
No symbol table info available.
#2  0x00007f1fc9518700 in ?? ()
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 1650):
#0  0x00007f1fcafe91f9 in ?? ()
No symbol table info available.
#1  0x00007f1fcb73aff7 in ?? ()
No symbol table info available.
#2  0x00000000013dae10 in ?? ()
No symbol table info available.
#3  0x00007f1fc978aae8 in ?? ()
No symbol table info available.
#4  0x00000000004f0d80 in PyDict_SetItem (value=0x4, key=0x7f1fca919d98, op=0x0) at ../Objects/dictobject.c:811
        hash = 2
#5  dict_ass_sub.18502 (mp=0x0, v=0x7f1fca919d98, w=0x4) at ../Objects/dictobject.c:1211
No locals.
#6  0x00007f1fcb01f994 in ?? ()
No symbol table info available.
#7  0x00000000013d5d80 in ?? ()
No symbol table info available.
#8  0x0000000000000208 in ?? ()
No symbol table info available.
#9  0x00007fff04a3d550 in ?? ()
No symbol table info available.
#10 0x00007f1fcb01d782 in ?? ()
No symbol table info available.
#11 0x00000000013d5d80 in ?? ()
No symbol table info available.
#12 0x00007f1fc9729f90 in ?? ()
No symbol table info available.
#13 0x0000000000000208 in ?? ()
No symbol table info available.
#14 0x00007fff04a3db50 in ?? ()
No symbol table info available.
#15 0x0000000000000000 in ?? ()
No symbol table info available.