Kernel Uninterruptible on Python 3.7

[spauka]

Kernels are uninterruptible in QtConsole using Python 3.7.

For example, the following code is run inside the terminal:

In [1]: import time

In [2]: while True:
   ...:     time.sleep(0.1)

following which I am unable to stop execution, either by pressing Ctrl-C or the "Interrupt current Kernel" menu item.

Running the same code in ipython in a console window succeeds in stopping execution.

This issue appears in the latest Spyder as well, and is reported here: spyder-ide/spyder#8013 but seems to be a QtConsole bug.

System Information

Windows 10
Python 3.7.1 (default, Oct 23 2018, 22:56:47) [MSC v.1912 64 bit (AMD64)]
IPython 7.1.1
ipykernel 5.1.0
qtconsole 4.4.2

To Reproduce failing version

conda create -n py37clean python=3.7
conda install qtconsole
jupyter qtconsole

To Reproduce working version 3.6

conda create -n py36clean python=3.6
conda install qtconsole
jupyter qtconsole

[ccordoba12]

@spauka, does this also happen in the Jupyter notebook?

[spauka]

@ccordoba12 Just tried it out in a notebook, and it does! The kernel is uninterruptible with both "Ctrl-C" and the various interrupt buttons.

Looks like the issue might run even deeper than qtconsole. Any idea what the source might be?

[pag]

This was fixed in the ipython repo last month: jupyter/jupyter_client#408

[ccordoba12]

Yes, that's correct.