#0  0x00007f9f42d00c87 in gtk_style_context_get_valist () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#1  0x00007f9f42d00f46 in gtk_style_context_get () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#2  0x00007f9f42d0169c in gtk_style_context_get_color () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#3  0x00007f9f47a73a14 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#4  0x00007f9f47a73435 in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#5  0x00007f9f4892ec44 in g_callable_info_invoke () from /usr/lib/libgirepository-1.0.so.1
No symbol table info available.
#6  0x00007f9f4892ffab in g_function_info_invoke () from /usr/lib/libgirepository-1.0.so.1
No symbol table info available.
#7  0x00007f9f48b9fffa in ?? () from /usr/lib/python2.7/dist-packages/gi/_gi.so
No symbol table info available.
#8  0x000000000042ecbc in PyEval_EvalFrameEx ()
No symbol table info available.
#9  0x00000000004317f2 in PyEval_EvalCodeEx ()
No symbol table info available.
#10 0x000000000042a998 in PyEval_EvalFrameEx ()
No symbol table info available.
#11 0x00000000004317f2 in PyEval_EvalCodeEx ()
No symbol table info available.
#12 0x000000000054aa40 in ?? ()
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#13 0x00000000004c7c76 in PyObject_Call ()
No symbol table info available.
#14 0x000000000044e20e in PyObject_CallFunction ()
No symbol table info available.
#15 0x00000000004cdefa in _PyObject_GenericGetAttrWithDict ()
No symbol table info available.
#16 0x000000000042a52e in PyEval_EvalFrameEx ()
No symbol table info available.
#17 0x00000000004317f2 in PyEval_EvalCodeEx ()
No symbol table info available.
#18 0x000000000054aa40 in ?? ()
No symbol table info available.
#19 0x00000000004c7c76 in PyObject_Call ()
No symbol table info available.
#20 0x000000000049e9ba in ?? ()
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#21 0x00000000004c7c76 in PyObject_Call ()
No symbol table info available.
#22 0x000000000049e4fe in ?? ()
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#23 0x00000000004c7286 in ?? ()
No symbol table info available.
#24 0x00000000004c7c76 in PyObject_Call ()
No symbol table info available.
#25 0x000000000042aa4a in PyEval_EvalFrameEx ()
No symbol table info available.
#26 0x000000000042abe2 in PyEval_EvalFrameEx ()
No symbol table info available.
#27 0x00000000004317f2 in PyEval_EvalCodeEx ()
No symbol table info available.
#28 0x000000000054b171 in PyRun_FileExFlags ()
No symbol table info available.
#29 0x000000000054b7d8 in PyRun_SimpleFileExFlags ()
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#30 0x000000000054c5d6 in Py_Main ()
No symbol table info available.
#31 0x00007f9f49bfc76d in __libc_start_main (main=0x41b900 <main>, argc=2, ubp_av=0x7fffb0c5abb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb0c5aba8) at libc-start.c:226
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3233275613849984820, 4307208, 140736159132592, 0, 0, -3233155168367927500, -3179413287739187404}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x57ea00, 0x7fffb0c5abb8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 5761536}}}
        not_first_call = <optimized out>
#32 0x000000000041b931 in _start ()
No symbol table info available.