Keyboard interrupt in debug mode PyCharm

Question

Is there any way to send a keyboard interrupt event in PyCharm IDE (3.1) while in the debugging mode?

Answer 1

I came through this message while searching Pycharm's bug tracking for this issue: https://youtrack.jetbrains.com/issue/PY-4840

If you are using version Pycharm 3, this might help, it worked for me.

One of the comments in the tracker: 'I have actually found out that Ctrl+C does eventually stop the running script, but you have to first write a letter into the console while it's running. So click into the console window, hit any key and then press Ctrl-C. In other words, it looks like a problem of GUI frame getting focus.'

Answer 2

As mentioned in this comment - Why doesn't this python keyboard interrupt work? (in pycharm):

In recent versions of PyCharm, you can enable Emulate terminal in output console in your Run Configuration - this allows Ctrl + C in the Run console to send a keyboard interrupt.

Tested with PyCharm 2018.3 (Community Edition):

Also this will break tqdm library:

Answer 3

PyCharm Stop button now sends SIGINT both in debug mode and run mode. If SIGINT does not terminate the program, the Stop button changes its signal to SIGKILL. It also changes its icon to a skull shape:

Answer 4

This is a bug in PyCharm. See: http://youtrack.jetbrains.com/issue/PY-4840

Keyboard interrupt is a SIGINT. On unix systems you can either go to the command line and do:

$ kill -INT <pid>

or in python:

import os, signal
os.kill(<pid>,signal.SIGINT)

Answer 5

Unfortunately, there is no simple way to do this. You will need to use psutil and the signal module. For this to work you need to install psutil and the best way to do that is through pip:

pip install psutil

So, lets say we have here, exhibit A:

while True:
    try:
        time.sleep(3)
        print "Zzzz"
        time.sleep(3)
        print("gong!")
    except KeyboardInterrupt as e:
        print "Closed by an Interrupt"
        break

And you're running this in PyCharm. Make sure that the interpreter you're using has psutils installed. You can check:

Make sure you've set your interpreter correctly:

If you haven't installed psutil, you can always do so though the Install button.

Okay then, so now that we have everything set up, lets debug the program:

Now all we have to do is get the process ID, and we can get that at the very start of the program:

So, lets fire up our console, and send a signal:

And if that worked properly, you should see the while loop ending:

You can further streamline the process by adding a function to send an interrupt in the starting script for your console:

Once you're done with all of that, all you need to do is call interrupt(<pid here>) to call a keyboard interrupt on your process.

I hope that answers your question.