[IPython-dev] Zmq Terminal.

[Omar Andrés Zapata Mesa]

Hi all.
Thanks Thomas. Sorry by my english!! I am studying and I undertake to
improve.
I am working in implemend Crt+C but I am having a rare problem.
Explain.
I am trying to capture the  exception when raw_input is getting the code,
see code
       try:
           print()
           self._splitter.push(raw_input(' In[%i]:
'%self.prompt_count+self.code))
           while self._splitter.push_accepts_more():
              self.code = raw_input(' .....: '+'
'*self._splitter.indent_spaces)
              self._splitter.push('
'*self._splitter.indent_spaces+self.code)
           self._execute(self._splitter.source,False)
           self._splitter.reset()
       except KeyboardInterrupt:
           print('\nKeyboardInterrupt\n')
           pass

but it produce an error in the ipkernel module

In[1]:
KeyboardInterrupt


 In[1]:
---------------------------------------------------------------------------
KeyboardInterrupt                         Traceback (most recent call last)
/home/omazapa/MyProjects/GSoC/ipython/IPython/frontend/zmqterminal/<string>
in <module>()

/home/omazapa/MyProjects/GSoC/ipython/IPython/zmq/ipkernel.pyc in main()
    678                                 shell=kernel.shell)
    679
--> 680     start_kernel(namespace, kernel)
    681
    682

/home/omazapa/MyProjects/GSoC/ipython/IPython/zmq/entry_point.pyc in
start_kernel(namespace=Namespace(colors=None, hb=39548,
ip='127.0.0.1',...ue, pub=34056, pylab=None, req=58834, xrep=59134),
kernel=<IPython.zmq.ipkernel.Kernel object>)
    147
    148     # Start the kernel mainloop.
--> 149     kernel.start()
    150
    151

/home/omazapa/MyProjects/GSoC/ipython/IPython/zmq/ipkernel.pyc in
start(self=<IPython.zmq.ipkernel.Kernel object>)
    168         """
    169         while True:
--> 170             time.sleep(self._poll_interval)
        global stdin = undefined
        global stdout = undefined
        global stderr = undefined
        global optional = undefined
        global default = undefined
        global None = undefined
    171             self.do_one_iteration()
    172

KeyboardInterrupt:


then the connection is lost.

the idea is capture the exception  KeyboardInterrupt in two differents times
1) in raw_input
2) when sub socket is is printing outputs to send signal SIGINT using kernel
manager's method self.km.interrupt_kernel()

The capture of second option is working but the first not for these unkown
error

you can see the code applying the attached diff file to apply in frontend.py
file

I prefer dont push this little change yet to the repo, before get some
opinion.


Very thanks Thomas You're a big help.



-- 
Omar Andres Zapata Mesa
User Linux  #490962
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