[Twisted-Python] Error in twisted-python while running nox-core

[exarkun at twistedmatrix.com]

On 05:55 pm, gtvrreddy at gmail.com wrote:
>Hi Everyone,
>I got the following error after running the following command:
>./nox_core -i ptcp:6633 switch switch_management hostip hosttracker
>monitoring jsonmessenger
>
>NOX 0.9.0(zaku)~full~beta (nox_core), compiled Nov 15 2010 21:36:36
>Compiled with OpenFlow 0x01
>00001|nox|ERR:Cannot change the state of 'python' to INSTALLED:
>'python' ran into an error:
>    Unable to construct a Python component:
>    Traceback (most recent call last):
>      File "./nox/coreapps/pyrt/pyoxidereactor.py", line 364, in 
>instance
>        return pyoxidereactor(ctxt)
>      File "./nox/coreapps/pyrt/pyoxidereactor.py", line 133, in 
>__init__
>        signal.signal(signal.SIGCHLD, self._handleSigchld)
>    AttributeError: 'pyoxidereactor' object has no attribute
>'_handleSigchld'

This appears to be caused by nox's use of private Twisted APIs which no 
longer exist.  You can try installing an older version of Twisted or 
updating nox to work with the version you're using now.

Jean-Paul
>Thanks,
>Ramana