#0  0x00007f1aba67f653 in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#1  0x00007f1aba67ffc4 in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#2  0x00007f1aba684561 in dbus_message_get_reply_serial () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#3  0x00007f1aba6788ee in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#4  0x00007f1aba6903ab in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#5  0x00007f1aba690db4 in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#6  0x00007f1aba691416 in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#7  0x00007f1aba69014d in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#8  0x00007f1aba67ae74 in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#9  0x00007f1aba67c21d in ?? () from /tmp/tmpd7LRcI/lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#10 0x00007f1aba8c3232 in PendingCall_block (self=0x14f8bb8, unused=<optimized out>) at ../../_dbus_bindings/pending-call.c:70
        _save = 0x1b63230
#11 0x0000000000489d40 in call_function (oparg=<optimized out>, pp_stack=0x7f1aa88f1bc0) at ../Python/ceval.c:4005
        meth = <optimized out>
        self = <optimized out>
        flags = <optimized out>
        tstate = <optimized out>
        func = <built-in method block of dbus.lowlevel.PendingCall object at remote 0x14f8bb8>
        w = <optimized out>
        na = <optimized out>
        nk = <optimized out>
        n = <optimized out>
        pfunc = 0x17db4b0
        x = <optimized out>
#12 PyEval_EvalFrameEx (f=<optimized out>, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x17db4b8
        stack_pointer = 0x17db4b8
        next_instr = 0x7f1abaadd93f "\001n"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = 0
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = <optimized out>
        freevars = 0x17db4b0
        retval = 0x0
        tstate = 0x1b63230
        co = 0x7f1abab0c330
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = 0x7f1abaadd914 "|"
        names = ('_introspect_lock', 'acquire', '_pending_introspect', 'None', 'block', 'release')
        consts = (None,)
        exit = '__exit__'
        enter = '__enter__'
#13 0x0000000000489920 in fast_function (nk=<optimized out>, na=1, n=<optimized out>, pp_stack=0x7f1aa88f1da0, func=<function at remote 0x7f1abab14320>) at ../Python/ceval.c:4107
        retval = 0x0
        i = <optimized out>
        fastlocals = <optimized out>
        f = <optimized out>
        tstate = 0x1b63230
        stack = <optimized out>
        co = <optimized out>
        nd = 0
        globals = <optimized out>
        argdefs = <optimized out>
        d = 0x0
#14 call_function (oparg=<optimized out>, pp_stack=0x7f1aa88f1da0) at ../Python/ceval.c:4042
        func = <function at remote 0x7f1abab14320>
        w = <optimized out>
        na = 1
        nk = <optimized out>
        n = <optimized out>
        pfunc = 0x1760aa0
        x = <optimized out>
#15 PyEval_EvalFrameEx (f=f@entry=Frame 0x1760910, for file /usr/lib/python2.7/dist-packages/dbus/proxies.py, line 69, in __call__ (self=<_DeferredMethod(_block=<instancemethod at remote 0x1501280>, _proxy_method=<_ProxyMethod(_connection=<SystemBus(_bus_type=1, _signals_lock=<thread.lock at remote 0x7f1abc076430>, _Connection__call_on_disconnection=[], _dbus_Connection_initialized=1, _bus_names=<WeakValueDictionary(_remove=<function at remote 0x14ea8c0>, data={}) at remote 0x14e3ea8>, _signal_sender_matches={}, _signal_recipients_by_object_path={}) at remote 0x12051d0>, _proxy=<ProxyObject(_requested_bus_name='com.ubuntu.USBCreator', _introspect_lock=<_RLock(_Verbose__verbose=False, _RLock__owner=139752473835264, _RLock__block=<thread.lock at remote 0x1a3b0f0>, _RLock__count=1) at remote 0x1a32c50>, _pending_introspect_queue=[], __dbus_object_path__='/com/ubuntu/USBCreator', _bus=<...>, _pending_introspect=<dbus.lowlevel.PendingCall at remote 0x14f8bb8>, _introspect_state=1, _introspect_method_map={}, _named_service=':1.105') at remote 0x1a0...(truncated), throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x1760aa8
        stack_pointer = <optimized out>
        next_instr = 0x7f1abab08995 "\001|"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = 0
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = 0x1760a88
        freevars = 0x1760aa0
        retval = 0x0
        tstate = 0x1b63230
        co = 0x7f1abab089b0
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = 0x7f1abab08954 "d\001"
        names = ('get', 'False', '_append', '_proxy_method', 'None', '_block')
        consts = (None, 'reply_handler', 'ignore_reply')
        exit = '__exit__'
        enter = '__enter__'
#16 0x0000000000490a98 in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, args=<optimized out>, argcount=<optimized out>, kws=kws@entry=0x1a09488, kwcount=2, defs=defs@entry=0x0, defcount=defcount@entry=0, closure=0x0) at ../Python/ceval.c:3253
        f = Frame 0x1760910, for file /usr/lib/python2.7/dist-packages/dbus/proxies.py, line 69, in __call__ (self=<_DeferredMethod(_block=<instancemethod at remote 0x1501280>, _proxy_method=<_ProxyMethod(_connection=<SystemBus(_bus_type=1, _signals_lock=<thread.lock at remote 0x7f1abc076430>, _Connection__call_on_disconnection=[], _dbus_Connection_initialized=1, _bus_names=<WeakValueDictionary(_remove=<function at remote 0x14ea8c0>, data={}) at remote 0x14e3ea8>, _signal_sender_matches={}, _signal_recipients_by_object_path={}) at remote 0x12051d0>, _proxy=<ProxyObject(_requested_bus_name='com.ubuntu.USBCreator', _introspect_lock=<_RLock(_Verbose__verbose=False, _RLock__owner=139752473835264, _RLock__block=<thread.lock at remote 0x1a3b0f0>, _RLock__count=1) at remote 0x1a32c50>, _pending_introspect_queue=[], __dbus_object_path__='/com/ubuntu/USBCreator', _bus=<...>, _pending_introspect=<dbus.lowlevel.PendingCall at remote 0x14f8bb8>, _introspect_state=1, _introspect_method_map={}, _named_service=':1.105') at remote 0x1a0...(truncated)
        retval = 0x0
        fastlocals = 0x1760a88
        freevars = <optimized out>
        tstate = <optimized out>
        x = <optimized out>
        u = <optimized out>
#17 0x000000000049a347 in function_call.15275 (func=<function at remote 0x7f1abaaf6c08>, arg=<optimized out>, kw=<optimized out>) at ../Objects/funcobject.c:526
        result = <optimized out>
        argdefs = <optimized out>
        kwtuple = ('dbus_interface', 'com.ubuntu.USBCreator', 'timeout', <float at remote 0xe2c3d8>)
        d = 0x0
        k = 0x1a09488
        nk = <optimized out>
        nd = 0
#18 0x0000000000499cb4 in PyObject_Call (kw={'dbus_interface': 'com.ubuntu.USBCreator', 'timeout': <float at remote 0xe2c3d8>}, arg=(<_DeferredMethod(_block=<instancemethod at remote 0x1501280>, _proxy_method=<_ProxyMethod(_connection=<SystemBus(_bus_type=1, _signals_lock=<thread.lock at remote 0x7f1abc076430>, _Connection__call_on_disconnection=[], _dbus_Connection_initialized=1, _bus_names=<WeakValueDictionary(_remove=<function at remote 0x14ea8c0>, data={}) at remote 0x14e3ea8>, _signal_sender_matches={}, _signal_recipients_by_object_path={}) at remote 0x12051d0>, _proxy=<ProxyObject(_requested_bus_name='com.ubuntu.USBCreator', _introspect_lock=<_RLock(_Verbose__verbose=False, _RLock__owner=139752473835264, _RLock__block=<thread.lock at remote 0x1a3b0f0>, _RLock__count=1) at remote 0x1a32c50>, _pending_introspect_queue=[], __dbus_object_path__='/com/ubuntu/USBCreator', _bus=<...>, _pending_introspect=<dbus.lowlevel.PendingCall at remote 0x14f8bb8>, _introspect_state=1, _introspect_method_map={}, _named_service=':1.105') at remote 0x1a0e1d0>, _named_service=':1.105', _dbus_interface=None, _method_name='UnmountFile', _object_path='/com/u...(truncated), func=<function at remote 0x7f1abaaf6c08>) at ../Objects/abstract.c:2529
        result = <optimized out>
        call = 0x49a1b0 <function_call.15275>
#19 instancemethod_call.8745 (func=<function at remote 0x7f1abaaf6c08>, arg=(<_DeferredMethod(_block=<instancemethod at remote 0x1501280>, _proxy_method=<_ProxyMethod(_connection=<SystemBus(_bus_type=1, _signals_lock=<thread.lock at remote 0x7f1abc076430>, _Connection__call_on_disconnection=[], _dbus_Connection_initialized=1, _bus_names=<WeakValueDictionary(_remove=<function at remote 0x14ea8c0>, data={}) at remote 0x14e3ea8>, _signal_sender_matches={}, _signal_recipients_by_object_path={}) at remote 0x12051d0>, _proxy=<ProxyObject(_requested_bus_name='com.ubuntu.USBCreator', _introspect_lock=<_RLock(_Verbose__verbose=False, _RLock__owner=139752473835264, _RLock__block=<thread.lock at remote 0x1a3b0f0>, _RLock__count=1) at remote 0x1a32c50>, _pending_introspect_queue=[], __dbus_object_path__='/com/ubuntu/USBCreator', _bus=<...>, _pending_introspect=<dbus.lowlevel.PendingCall at remote 0x14f8bb8>, _introspect_state=1, _introspect_method_map={}, _named_service=':1.105') at remote 0x1a0e1d0>, _named_service=':1.105', _dbus_interface=None, _method_name='UnmountFile', _object_path='/com/u...(truncated), kw={'dbus_interface': 'com.ubuntu.USBCreator', 'timeout': <float at remote 0xe2c3d8>}) at ../Objects/classobject.c:2602
        self = <optimized out>
        klass = <optimized out>
        result = <unknown at remote 0x49a1b0>
#20 0x000000000053d95a in PyObject_Call (kw={'dbus_interface': 'com.ubuntu.USBCreator', 'timeout': <float at remote 0xe2c3d8>}, arg=(u'/dev/sdb1',), func=<instancemethod at remote 0x15011e0>) at ../Objects/abstract.c:2529
        result = <optimized out>
        call = 0x499be0 <instancemethod_call.8745>
#21 instance_call.8897 (func=<_DeferredMethod(_block=<instancemethod at remote 0x1501280>, _proxy_method=<_ProxyMethod(_connection=<SystemBus(_bus_type=1, _signals_lock=<thread.lock at remote 0x7f1abc076430>, _Connection__call_on_disconnection=[], _dbus_Connection_initialized=1, _bus_names=<WeakValueDictionary(_remove=<function at remote 0x14ea8c0>, data={}) at remote 0x14e3ea8>, _signal_sender_matches={}, _signal_recipients_by_object_path={}) at remote 0x12051d0>, _proxy=<ProxyObject(_requested_bus_name='com.ubuntu.USBCreator', _introspect_lock=<_RLock(_Verbose__verbose=False, _RLock__owner=139752473835264, _RLock__block=<thread.lock at remote 0x1a3b0f0>, _RLock__count=1) at remote 0x1a32c50>, _pending_introspect_queue=[], __dbus_object_path__='/com/ubuntu/USBCreator', _bus=<...>, _pending_introspect=<dbus.lowlevel.PendingCall at remote 0x14f8bb8>, _introspect_state=1, _introspect_method_map={}, _named_service=':1.105') at remote 0x1a0e1d0>, _named_service=':1.105', _dbus_interface=None, _method_name='UnmountFile', _object_path='/com/ub...(truncated), arg=(u'/dev/sdb1',), kw={'dbus_interface': 'com.ubuntu.USBCreator', 'timeout': <float at remote 0xe2c3d8>}) at ../Objects/classobject.c:2153
        res = <optimized out>
        call = <instancemethod at remote 0x15011e0>
#22 0x0000000000489780 in PyObject_Call (kw={'dbus_interface': 'com.ubuntu.USBCreator', 'timeout': <float at remote 0xe2c3d8>}, arg=(u'/dev/sdb1',), func=<_DeferredMethod(_block=<instancemethod at remote 0x1501280>, _proxy_method=<_ProxyMethod(_connection=<SystemBus(_bus_type=1, _signals_lock=<thread.lock at remote 0x7f1abc076430>, _Connection__call_on_disconnection=[], _dbus_Connection_initialized=1, _bus_names=<WeakValueDictionary(_remove=<function at remote 0x14ea8c0>, data={}) at remote 0x14e3ea8>, _signal_sender_matches={}, _signal_recipients_by_object_path={}) at remote 0x12051d0>, _proxy=<ProxyObject(_requested_bus_name='com.ubuntu.USBCreator', _introspect_lock=<_RLock(_Verbose__verbose=False, _RLock__owner=139752473835264, _RLock__block=<thread.lock at remote 0x1a3b0f0>, _RLock__count=1) at remote 0x1a32c50>, _pending_introspect_queue=[], __dbus_object_path__='/com/ubuntu/USBCreator', _bus=<...>, _pending_introspect=<dbus.lowlevel.PendingCall at remote 0x14f8bb8>, _introspect_state=1, _introspect_method_map={}, _named_service=':1.105') at remote 0x1a0e1d0>, _named_service=':1.105', _dbus_interface=None, _method_name='UnmountFile', _object_path='/com/ub...(truncated)) at ../Objects/abstract.c:2529
        result = <optimized out>
        call = 0x53d870 <instance_call.8897>
#23 do_call (nk=<optimized out>, na=<optimized out>, pp_stack=0x7f1aa88f2330, func=<_DeferredMethod(_block=<instancemethod at remote 0x1501280>, _proxy_method=<_ProxyMethod(_connection=<SystemBus(_bus_type=1, _signals_lock=<thread.lock at remote 0x7f1abc076430>, _Connection__call_on_disconnection=[], _dbus_Connection_initialized=1, _bus_names=<WeakValueDictionary(_remove=<function at remote 0x14ea8c0>, data={}) at remote 0x14e3ea8>, _signal_sender_matches={}, _signal_recipients_by_object_path={}) at remote 0x12051d0>, _proxy=<ProxyObject(_requested_bus_name='com.ubuntu.USBCreator', _introspect_lock=<_RLock(_Verbose__verbose=False, _RLock__owner=139752473835264, _RLock__block=<thread.lock at remote 0x1a3b0f0>, _RLock__count=1) at remote 0x1a32c50>, _pending_introspect_queue=[], __dbus_object_path__='/com/ubuntu/USBCreator', _bus=<...>, _pending_introspect=<dbus.lowlevel.PendingCall at remote 0x14f8bb8>, _introspect_state=1, _introspect_method_map={}, _named_service=':1.105') at remote 0x1a0e1d0>, _named_service=':1.105', _dbus_interface=None, _method_name='UnmountFile', _object_path='/com/ub...(truncated)) at ../Python/ceval.c:4239
        callargs = <optimized out>
        kwdict = {'dbus_interface': 'com.ubuntu.USBCreator', 'timeout': <float at remote 0xe2c3d8>}
        result = 0x0
#24 call_function (oparg=<optimized out>, pp_stack=0x7f1aa88f2330) at ../Python/ceval.c:4044
        func = <_DeferredMethod(_block=<instancemethod at remote 0x1501280>, _proxy_method=<_ProxyMethod(_connection=<SystemBus(_bus_type=1, _signals_lock=<thread.lock at remote 0x7f1abc076430>, _Connection__call_on_disconnection=[], _dbus_Connection_initialized=1, _bus_names=<WeakValueDictionary(_remove=<function at remote 0x14ea8c0>, data={}) at remote 0x14e3ea8>, _signal_sender_matches={}, _signal_recipients_by_object_path={}) at remote 0x12051d0>, _proxy=<ProxyObject(_requested_bus_name='com.ubuntu.USBCreator', _introspect_lock=<_RLock(_Verbose__verbose=False, _RLock__owner=139752473835264, _RLock__block=<thread.lock at remote 0x1a3b0f0>, _RLock__count=1) at remote 0x1a32c50>, _pending_introspect_queue=[], __dbus_object_path__='/com/ubuntu/USBCreator', _bus=<...>, _pending_introspect=<dbus.lowlevel.PendingCall at remote 0x14f8bb8>, _introspect_state=1, _introspect_method_map={}, _named_service=':1.105') at remote 0x1a0e1d0>, _named_service=':1.105', _dbus_interface=None, _method_name='UnmountFile', _object_path='/com/ub...(truncated)
        w = <optimized out>
        na = <optimized out>
        nk = <optimized out>
        n = <optimized out>
        pfunc = 0x7f1a9c012c18
        x = <optimized out>
#25 PyEval_EvalFrameEx (f=<optimized out>, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x7f1a9c012c20
        stack_pointer = <optimized out>
        next_instr = 0x14125e5 "\001Wq\252"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = 0
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = <optimized out>
        freevars = 0x7f1a9c012c18
        retval = 0x0
        tstate = 0x1b63230
        co = 0x1436830
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = 0x1412564 "t"
        names = ('logging', 'debug', 'sys', 'platform', 'progress_pulse', 'progress_message', '_', 'dbus', 'SystemBus', 'get_object', 'UnmountFile', 'device', 'MAX_DBUS_TIMEOUT', 'DBusException', 'exception')
        consts = (None, 'sync', 'win32', 'Finishing...', -1, 'com.ubuntu.USBCreator', '/com/ubuntu/USBCreator', 'dbus_interface', 'timeout', 'Unable to unmount:')
        exit = '__exit__'
        enter = '__enter__'
#26 0x0000000000489920 in fast_function (nk=<optimized out>, na=1, n=<optimized out>, pp_stack=0x7f1aa88f2510, func=<function at remote 0x14e90c8>) at ../Python/ceval.c:4107
        retval = 0x0
        i = <optimized out>
        fastlocals = <optimized out>
        f = <optimized out>
        tstate = 0x1b63230
        stack = <optimized out>
        co = <optimized out>
        nd = 0
        globals = <optimized out>
        argdefs = <optimized out>
        d = 0x0
#27 call_function (oparg=<optimized out>, pp_stack=0x7f1aa88f2510) at ../Python/ceval.c:4042
        func = <function at remote 0x14e90c8>
        w = <optimized out>
        na = 1
        nk = <optimized out>
        n = <optimized out>
        pfunc = 0x7f1a9c00a618
        x = <optimized out>
#28 PyEval_EvalFrameEx (f=<optimized out>, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x7f1a9c00a620
        stack_pointer = <optimized out>
        next_instr = 0x14c3ff5 "\001d"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = 0
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = <optimized out>
        freevars = 0x7f1a9c00a618
        retval = 0x0
        tstate = 0x1b63230
        co = 0x1436a30
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = 0x14c3c14 "|"
        names = ('progress_message', '_', 'os', 'listdir', 'source', 'check', 'path', 'join', 'target', 'exists', 'isfile', 'logging', 'debug', 'unlink', 'isdir', 'shutil', 'rmtree', 'remove_extras', 'initialize_progress_thread', 'walk', 'len', 'rstrip', 'sep', 'lstat', 'stat', 'S_IMODE', 'st_mode', 'S_ISLNK', 'lexists', 'readlink', 'warn', 'S_ISDIR', 'mkdir', 'S_ISCHR', 'mknod', 'S_IFCHR', 'st_rdev', 'S_ISBLK', 'S_IFBLK', 'S_ISFIFO', 'S_IFIFO', 'S_ISSOCK', 'S_IFSOCK', 'S_ISREG', 'copy_file', 'install_efi', 'install_bootloader', 'mangle_syslinux', 'create_persistence', 'sync')
        consts = (None, 'Removing files...', 'Removing %s', 'Copying files...', 1, 'Writing %s', 'Tried to symlink %s -> %s\n', 'boot', 'grub', 'i386-pc')
        exit = '__exit__'
        enter = '__enter__'
#29 0x0000000000489920 in fast_function (nk=<optimized out>, na=1, n=<optimized out>, pp_stack=0x7f1aa88f26f0, func=<function at remote 0x14e92a8>) at ../Python/ceval.c:4107
        retval = 0x0
        i = <optimized out>
        fastlocals = <optimized out>
        f = <optimized out>
        tstate = 0x1b63230
        stack = <optimized out>
        co = <optimized out>
        nd = 0
        globals = <optimized out>
        argdefs = <optimized out>
        d = 0x0
#30 call_function (oparg=<optimized out>, pp_stack=0x7f1aa88f26f0) at ../Python/ceval.c:4042
        func = <function at remote 0x14e92a8>
        w = <optimized out>
        na = 1
        nk = <optimized out>
        n = <optimized out>
        pfunc = 0x7f1a9c00b1b0
        x = <optimized out>
#31 PyEval_EvalFrameEx (f=<optimized out>, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x7f1a9c00b1b8
        stack_pointer = <optimized out>
        next_instr = 0x14c2b1b "\001|"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = 0
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = <optimized out>
        freevars = 0x7f1a9c00b1b0
        retval = 0x0
        tstate = 0x1b63230
        co = 0x1436430
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = 0x14c2a64 "y\303"
        names = ('os', 'path', 'isfile', 'source', 'splitext', 'lower', '_failure', '_', 'sys', 'platform', 'cdimage_install', 'install', 'diskimage_install', '_success', 'Exception', 'logging', 'exception', 'str')
        consts = (None, 1, '.iso', '.img', 'The extension "%s" is not supported.', 'win32', 'Exception raised:', 'An uncaught exception was raised:\n%s', ('.iso', '.img'))
        exit = '__exit__'
        enter = '__enter__'
#32 0x0000000000489920 in fast_function (nk=<optimized out>, na=1, n=<optimized out>, pp_stack=0x7f1aa88f28d0, func=<function at remote 0x14e5c80>) at ../Python/ceval.c:4107
        retval = 0x0
        i = <optimized out>
        fastlocals = <optimized out>
        f = <optimized out>
        tstate = 0x1b63230
        stack = <optimized out>
        co = <optimized out>
        nd = 0
        globals = <optimized out>
        argdefs = <optimized out>
        d = 0x0
#33 call_function (oparg=<optimized out>, pp_stack=0x7f1aa88f28d0) at ../Python/ceval.c:4042
        func = <function at remote 0x14e5c80>
        w = <optimized out>
        na = 1
        nk = <optimized out>
        n = <optimized out>
        pfunc = 0x7f1a9c017198
        x = <optimized out>
#34 PyEval_EvalFrameEx (f=<optimized out>, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x7f1a9c0171a0
        stack_pointer = <optimized out>
        next_instr = 0xf4d07a "\001Wn\a\001\004t\016"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = 0
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = <optimized out>
        freevars = 0x7f1a9c017198
        retval = 0x0
        tstate = 0x1b63230
        co = 0x7f1abbf6deb0
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = 0xf4cfd4 "z\322\001|"
        names = ('_set_ident', '_Thread__started', 'set', '_active_limbo_lock', '_active', '_Thread__ident', '_limbo', '_note', '_trace_hook', '_sys', 'settrace', '_profile_hook', 'setprofile', 'run', 'SystemExit', 'stderr', 'write', 'name', '_format_exc', '_Thread__exc_info', '_Thread__stderr', 'tb_frame', 'f_code', 'co_filename', 'tb_lineno', 'co_name', 'tb_next', '_Thread__exc_clear', '_Thread__stop', '_get_ident')
        consts = (None, '%s.__bootstrap(): thread started', '%s.__bootstrap(): registering trace hook', '%s.__bootstrap(): registering profile hook', '%s.__bootstrap(): raised SystemExit', '%s.__bootstrap(): unhandled exception', 'Exception in thread %s:\n%s\n', 'Exception in thread ', ' (most likely raised during interpreter shutdown):', 'Traceback (most recent call last):', '  File "%s", line %s, in %s', '%s: %s', '%s.__bootstrap(): normal return')
        exit = '__exit__'
        enter = '__enter__'
#35 0x0000000000489920 in fast_function (nk=<optimized out>, na=1, n=<optimized out>, pp_stack=0x7f1aa88f2ab0, func=<function at remote 0x7f1abaaedaa0>) at ../Python/ceval.c:4107
        retval = 0x0
        i = <optimized out>
        fastlocals = <optimized out>
        f = <optimized out>
        tstate = 0x1b63230
        stack = <optimized out>
        co = <optimized out>
        nd = 0
        globals = <optimized out>
        argdefs = <optimized out>
        d = 0x0
#36 call_function (oparg=<optimized out>, pp_stack=0x7f1aa88f2ab0) at ../Python/ceval.c:4042
        func = <function at remote 0x7f1abaaedaa0>
        w = <optimized out>
        na = 1
        nk = <optimized out>
        n = <optimized out>
        pfunc = 0x7f1a9c015f10
        x = <optimized out>
#37 PyEval_EvalFrameEx (f=f@entry=Frame 0x7f1a9c015d90, for file /usr/lib/python2.7/threading.py, line 525, in __bootstrap (self=<install(_Thread__ident=139752473835264, _stopevent=<_Event(_Verbose__verbose=False, _Event__flag=False, _Event__cond=<_Condition(_Verbose__verbose=False, _Condition__lock=<thread.lock at remote 0x7f1abc0767b0>, acquire=<built-in method acquire of thread.lock object at remote 0x7f1abc0767b0>, _Condition__waiters=[], release=<built-in method release of thread.lock object at remote 0x7f1abc0767b0>) at remote 0x1a0e0d0>) at remote 0x1a0e050>, _Thread__started=<_Event(_Verbose__verbose=False, _Event__flag=True, _Event__cond=<_Condition(_Verbose__verbose=False, _Condition__lock=<thread.lock at remote 0x7f1abc0767d0>, acquire=<built-in method acquire of thread.lock object at remote 0x7f1abc0767d0>, _Condition__waiters=[], release=<built-in method release of thread.lock object at remote 0x7f1abc0767d0>) at remote 0x1a10f90>) at remote 0x1a10fd0>, _Verbose__verbose=False, _Thread__initialized=True, retry=<instancemethod at ...(truncated), throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x7f1a9c015f18
        stack_pointer = <optimized out>
        next_instr = 0x7f1abbf649c0 "\001Wn#"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = 0
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = 0x7f1a9c015f08
        freevars = 0x7f1a9c015f10
        retval = 0x0
        tstate = 0x1b63230
        co = 0x7f1abbf6ddb0
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = 0x7f1abbf649b4 "y\016"
        names = ('_Thread__bootstrap_inner', '_Thread__daemonic', '_sys', 'None')
        consts = (None,)
        exit = '__exit__'
        enter = '__enter__'
#38 0x0000000000490a98 in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, args=<optimized out>, argcount=<optimized out>, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, defcount=defcount@entry=0, closure=0x0) at ../Python/ceval.c:3253
        f = Frame 0x7f1a9c015d90, for file /usr/lib/python2.7/threading.py, line 525, in __bootstrap (self=<install(_Thread__ident=139752473835264, _stopevent=<_Event(_Verbose__verbose=False, _Event__flag=False, _Event__cond=<_Condition(_Verbose__verbose=False, _Condition__lock=<thread.lock at remote 0x7f1abc0767b0>, acquire=<built-in method acquire of thread.lock object at remote 0x7f1abc0767b0>, _Condition__waiters=[], release=<built-in method release of thread.lock object at remote 0x7f1abc0767b0>) at remote 0x1a0e0d0>) at remote 0x1a0e050>, _Thread__started=<_Event(_Verbose__verbose=False, _Event__flag=True, _Event__cond=<_Condition(_Verbose__verbose=False, _Condition__lock=<thread.lock at remote 0x7f1abc0767d0>, acquire=<built-in method acquire of thread.lock object at remote 0x7f1abc0767d0>, _Condition__waiters=[], release=<built-in method release of thread.lock object at remote 0x7f1abc0767d0>) at remote 0x1a10f90>) at remote 0x1a10fd0>, _Verbose__verbose=False, _Thread__initialized=True, retry=<instancemethod at ...(truncated)
        retval = 0x0
        fastlocals = 0x7f1a9c015f08
        freevars = <optimized out>
        tstate = <optimized out>
        x = <optimized out>
        u = <optimized out>
#39 0x000000000049a21c in function_call.15275 (func=<function at remote 0x7f1abaaed9b0>, arg=<optimized out>, kw=<optimized out>) at ../Objects/funcobject.c:526
        result = <optimized out>
        argdefs = <optimized out>
        kwtuple = 0x0
        d = 0x0
        k = 0x0
        nk = 0
        nd = 0
#40 0x0000000000499cb4 in PyObject_Call (kw=0x0, arg=(<install(_Thread__ident=139752473835264, _stopevent=<_Event(_Verbose__verbose=False, _Event__flag=False, _Event__cond=<_Condition(_Verbose__verbose=False, _Condition__lock=<thread.lock at remote 0x7f1abc0767b0>, acquire=<built-in method acquire of thread.lock object at remote 0x7f1abc0767b0>, _Condition__waiters=[], release=<built-in method release of thread.lock object at remote 0x7f1abc0767b0>) at remote 0x1a0e0d0>) at remote 0x1a0e050>, _Thread__started=<_Event(_Verbose__verbose=False, _Event__flag=True, _Event__cond=<_Condition(_Verbose__verbose=False, _Condition__lock=<thread.lock at remote 0x7f1abc0767d0>, acquire=<built-in method acquire of thread.lock object at remote 0x7f1abc0767d0>, _Condition__waiters=[], release=<built-in method release of thread.lock object at remote 0x7f1abc0767d0>) at remote 0x1a10f90>) at remote 0x1a10fd0>, _Verbose__verbose=False, _Thread__initialized=True, retry=<instancemethod at remote 0x14fbf50>, _Thread__block=<_Condition(_Verbose__verbose=False, _Condition__lock=<threa...(truncated), func=<function at remote 0x7f1abaaed9b0>) at ../Objects/abstract.c:2529
        result = <optimized out>
        call = 0x49a1b0 <function_call.15275>
#41 instancemethod_call.8745 (func=<function at remote 0x7f1abaaed9b0>, arg=(<install(_Thread__ident=139752473835264, _stopevent=<_Event(_Verbose__verbose=False, _Event__flag=False, _Event__cond=<_Condition(_Verbose__verbose=False, _Condition__lock=<thread.lock at remote 0x7f1abc0767b0>, acquire=<built-in method acquire of thread.lock object at remote 0x7f1abc0767b0>, _Condition__waiters=[], release=<built-in method release of thread.lock object at remote 0x7f1abc0767b0>) at remote 0x1a0e0d0>) at remote 0x1a0e050>, _Thread__started=<_Event(_Verbose__verbose=False, _Event__flag=True, _Event__cond=<_Condition(_Verbose__verbose=False, _Condition__lock=<thread.lock at remote 0x7f1abc0767d0>, acquire=<built-in method acquire of thread.lock object at remote 0x7f1abc0767d0>, _Condition__waiters=[], release=<built-in method release of thread.lock object at remote 0x7f1abc0767d0>) at remote 0x1a10f90>) at remote 0x1a10fd0>, _Verbose__verbose=False, _Thread__initialized=True, retry=<instancemethod at remote 0x14fbf50>, _Thread__block=<_Condition(_Verbose__verbose=False, _Condition__lock=<threa...(truncated), kw=0x0) at ../Objects/classobject.c:2602
        self = <optimized out>
        klass = <optimized out>
        result = <unknown at remote 0x49a1b0>
#42 0x000000000049a89e in PyObject_Call (kw=<optimized out>, arg=(), func=<instancemethod at remote 0x1501230>) at ../Objects/abstract.c:2529
        result = <optimized out>
        call = 0x499be0 <instancemethod_call.8745>
#43 PyEval_CallObjectWithKeywords (func=<instancemethod at remote 0x1501230>, arg=(), kw=<optimized out>) at ../Python/ceval.c:3890
        result = <instancemethod at remote 0x1501230>
#44 0x0000000000503068 in t_bootstrap.49363 (boot_raw=0x19c13c0) at ../Modules/threadmodule.c:614
        boot = 0x19c13c0
        tstate = 0x1b63230
        res = <optimized out>
#45 0x00007f1abbcdae9a in start_thread (arg=0x7f1aa88f3700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7f1aa88f3700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 9106444654716697952, 140734054847952, 139752473835968, 28462304, 3, -9199228737080214176, -9199199612888105632}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#46 0x00007f1abb0ee39d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#47 0x0000000000000000 in ?? ()
No symbol table info available.