IPython Console: Cannot interrupt started processes

[spyder-bot]

From ccordoba12 on 2012-06-04T20:42:46Z

This is a serious one: IPython doesn't let interrupt computations on remote kernels which is precisely what we're using to communicate with the variable explorer.

Fortunately the widget has a 'custom_interrupt' attribute that (hopefully) we could use to send the right signal to the right kernel. See: https://github.com/ipython/ipython/blob/1170c58b456d80fe1c81b24fd4728181c1d94b4d/IPython/frontend/qt/console/frontend_widget.py#L561 and the necessary signal here: https://github.com/ipython/ipython/blob/4b8de0203d2eec87c2d05c3521df8af3365f73a4/IPython/zmq/kernelmanager.py#L925

Original issue: http://code.google.com/p/spyderlib/issues/detail?id=1078

[spyder-bot]

From ccordoba12 on 2012-06-15T20:10:14Z

I have code in my personal repo that solves this issue (and also kernel restarts). It's still not ready to push but I think it's not necessary for anyone else to invest time on it.

[spyder-bot]

From ccordoba12 on 2012-06-18T11:48:24Z

This issue was updated by revision e62ec90fb10d .

• Before the console was reporting 'Kernel process is either remote or
  unspecified. Cannot interrupt.' Now a Ctrl+C will get a proper interrupt.

[spyder-bot]

From ccordoba12 on 2012-06-18T11:56:44Z

Jed, could test this change works as expected and close the issue? It would be a matter of hitting Ctrl+C to stop a computation or to use the option I introduced in the new menu.

Cc: jed.lud...@gmail.com

[spyder-bot]

From jed.lud...@gmail.com on 2012-06-19T06:41:08Z

Seems to be working correctly on Windows.

Status: Verified

[spyder-bot]

From ccordoba12 on 2012-07-05T20:14:35Z

Blocking: spyderlib:1053

[spyder-bot]

From publieke...@gmail.com on 2015-02-02T03:00:22Z

Was this patch applied to the main repository? In Spyder 2.3.2, pressing control-C or clicking the 'stop the current command' button still gives the same error message for a remote kernel: 'Kernel process is either remote or unspecified. Cannot interrupt'

Would be great to have the possibility to interrupt remote kernels.

[spyder-bot]

From ccordoba12 on 2015-02-02T05:53:14Z

External kernels can't be interrupted because of limitations in the IPython architecture. We'll see if we can do something about it in our next version, but it's a tricky issue.

The patch you're referring to was applied a long time ago to interrupt kernels started by Spyder itself.

[spyder-bot]

From ccordoba12 on 2015-02-15T16:14:34Z

Labels: -Component-IPython