Here is a traceback, provided by Tucos in #xcb on freenode:
#0 0x00007ffff7a9fc55 in PyDict_GetItem () from
/usr/lib/libpython2.7.so.1.0
No symbol table info available.
#1 0x00007ffff6a892f4 in xpybConn_getattro (obj=0x7ffff7ec5210,
self=0x7ffff7ea4370) at conn.c:221
result = <optimized out>
#2 xpybConn_getattro (self=0x7ffff7ea4370, obj=0x7ffff7ec5210) at
conn.c:207
name = 0x7ffff7ec5234 "__members__"
mptr = <optimized out>
sptr = <optimized out>
result = 0x7ffff6c8f638
#3 0x00007ffff7aa504d in PyObject_GetAttrString () from
/usr/lib/libpython2.7.so.1.0
No symbol table info available.
#4 0x00007ffff7aa523f in merge_list_attr () from
/usr/lib/libpython2.7.so.1.0
No symbol table info available.
#5 0x00007ffff7aa6931 in PyObject_Dir () from /usr/lib/libpython2.7.so.1.0
No symbol table info available.
#6 0x00007ffff7af8b9c in builtin_dir () from /usr/lib/libpython2.7.so.1.0
No symbol table info available.
#7 0x00007ffff7b00aed in PyEval_EvalFrameEx () from
/usr/lib/libpython2.7.so.1.0
No symbol table info available.
#8 0x00007ffff7b0209f in PyEval_EvalCodeEx () from
/usr/lib/libpython2.7.so.1.0
No symbol table info available.
#9 0x00007ffff7b021d2 in PyEval_EvalCode () from
/usr/lib/libpython2.7.so.1.0
No symbol table info available.
#10 0x00007ffff7b1c2fc in run_mod () from /usr/lib/libpython2.7.so.1.0
No symbol table info available.
#11 0x00007ffff7b1cebd in PyRun_StringFlags () from
/usr/lib/libpython2.7.so.1.0
No symbol table info available.
#12 0x00007ffff7b1da0b in PyRun_SimpleStringFlags () from
/usr/lib/libpython2.7.so.1.0
No symbol table info available.
#13 0x00007ffff7b2e95e in Py_Main () from /usr/lib/libpython2.7.so.1.0
No symbol table info available.
#14 0x00007ffff74c513d in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#15 0x0000000000400631 in _start ()
No symbol table info available.
