[IPython-dev] IPython console crashes when interrupted in routine

Thomas Kluyver takowl at gmail.com
Sat Mar 21 14:48:26 EDT 2015


Hi Gregory,

I can reproduce this - please file an issue so we don't lose track of it.

Thanks,
Thomas

On 21 March 2015 at 11:38, Gregory Simonian <simonian.7 at buckeyemail.osu.edu>
wrote:

>  Hey everyone,
>
> I think I ran into a regression in IPython 3.0 where whenever I interrupt
> running code, the IPython console and kernel crash. Probably the easiest
> way I know to reproduce this is:
> $ ipython console
> In [1]: for i in range(1000000):
>    ...:    print i
>    ...:
> And then press Ctrl-C during execution.
>
> I expect that it will catch a KeyboardInterrupt exception and then go back
> to an IPython prompt. However, instead it outputs:
> Out [1]: 1
> 2
> <...>
> 41654^CTraceback (most recent call last):
>   File "/usr/custom/Anaconda-2.0.1/bin/ipython", line 6, in <module>
>     sys.exit(start_ipython())
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/__init__.py",
> line 120, in start_ipython
>     return launch_new_instance(argv=argv, **kwargs)
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/config/application.py",
> line 574, in launch_instance
>     app.start()
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/terminal/ipapp.py",
> line 367, in start
>     return self.subapp.start()
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/terminal/ipapp.py",
> line 371, in start
>     self.shell.mainloop()
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/terminal/console/interactiveshell.py",
> line 407, in mainloop
>     self.interact(display_banner=display_banner)
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/terminal/console/interactiveshell.py",
> line 568, in interact
>     self.run_cell(source_raw)
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/terminal/console/interactiveshell.py",
> line 168, in run_cell
>     self.handle_input_request(msg_id, timeout=0.05)
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/terminal/console/interactiveshell.py",
> line 373, in handle_input_request
>     req = self.client.stdin_channel.get_msg(timeout=timeout)
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/IPython/kernel/blocking/channels.py",
> line 50, in get_msg
>     ready = self.socket.poll(timeout)
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/zmq/sugar/socket.py",
> line 448, in poll
>     evts = dict(p.poll(timeout))
>   File
> "/usr/custom/Anaconda-2.0.1/lib/python2.7/site-packages/zmq/sugar/poll.py",
> line 101, in poll
>     return zmq_poll(self.sockets, timeout=timeout)
>   File "zmq/backend/cython/_poll.pyx", line 115, in
> zmq.backend.cython._poll.zmq_poll (zmq/backend/cython/_poll.c:1586)
>   File "zmq/backend/cython/checkrc.pxd", line 21, in
> zmq.backend.cython.checkrc._check_rc (zmq/backend/cython/_poll.c:2016)
>     raise ZMQError(errno)
> ZMQError: Interrupted system call
>
> If you suspect this is an IPython bug, please report it at:
>     https://github.com/ipython/ipython/issues
> or send an email to the mailing list at ipython-dev at scipy.org
>
> You can print a more detailed traceback right now with "%tb", or use
> "%debug"
> to interactively debug it.
>
> Extra-detailed tracebacks for bug-reporting purposes can be enabled via:
>     %config Application.verbose_crash=True
> $
>
> Dropping me back at the shell. This doesn't occur in just running plain "$
> ipython", so the kernel should have something to do with it.
>
> I am running IPython 3.0 through Anaconda on CentOS 6.6.I hadn't
> encountered this bug in IPython 2. Maybe other people can confirm if it
> occurs for them. And if so, what additional info I would need to file a bug
> report. Thanks!
>
>                                                              Gregory
> Simonian
>
> _______________________________________________
> IPython-dev mailing list
> IPython-dev at scipy.org
> http://mail.scipy.org/mailman/listinfo/ipython-dev
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/ipython-dev/attachments/20150321/0f1993e3/attachment.html>


More information about the IPython-dev mailing list