Immediate SyntaxError on attach about pyringe HOT 9 CLOSED

~# LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libpython2.7.so python -m pyringe
Pyringe (Python 2.7.6) on linux2
For a list of debugger commands, try "help()". (python's help is available as pyhelp.)
==> pid:[None] #threads:[0] current thread:[None]
>>> attach(17102)
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/pyringe/repl.py", line 161, in Attach
    self.inferior.Reinit(pid)
  File "/usr/local/lib/python2.7/dist-packages/pyringe/inferior.py", line 484, in Reinit
    self.__init__(pid, auto_symfile_loading, architecture=self.arch)
  File "/usr/local/lib/python2.7/dist-packages/pyringe/inferior.py", line 456, in __init__
    self.StartGdb()
  File "/usr/local/lib/python2.7/dist-packages/pyringe/inferior.py", line 502, in StartGdb
    self._gdb = GdbProxy(arch=self.arch)
  File "/usr/local/lib/python2.7/dist-packages/pyringe/inferior.py", line 134, in __init__
    gdb_version = GdbProxy.Version()
  File "/usr/local/lib/python2.7/dist-packages/pyringe/inferior.py", line 240, in Version
    output = subprocess.check_output(['gdb', '--version']).split('\n')[0]
  File "/usr/lib/python2.7/subprocess.py", line 573, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
CalledProcessError: Command '['gdb', '--version']' returned non-zero exit status -11
Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/local/lib/python2.7/dist-packages/pyringe/__main__.py", line 19, in <module>
    pyringe.interact()
  File "/usr/local/lib/python2.7/dist-packages/pyringe/__init__.py", line 25, in interact
    DebuggingConsole().interact()
  File "/usr/local/lib/python2.7/dist-packages/pyringe/repl.py", line 230, in interact
    prompt = self.StatusLine() + '\n' + sys.ps1
  File "/usr/local/lib/python2.7/dist-packages/pyringe/repl.py", line 135, in StatusLine
    self.inferior.StartGdb()
  File "/usr/local/lib/python2.7/dist-packages/pyringe/inferior.py", line 502, in StartGdb
    self._gdb = GdbProxy(arch=self.arch)
  File "/usr/local/lib/python2.7/dist-packages/pyringe/inferior.py", line 134, in __init__
    gdb_version = GdbProxy.Version()
  File "/usr/local/lib/python2.7/dist-packages/pyringe/inferior.py", line 240, in Version
    output = subprocess.check_output(['gdb', '--version']).split('\n')[0]
  File "/usr/lib/python2.7/subprocess.py", line 573, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError: Command '['gdb', '--version']' returned non-zero exit status -11

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