I was wondering if there is a way to restart the ipython kernel without closing it, like the kernel restart function that exists in the notebook. I tried %reset but that doesn't seem to clear the imports.
Even though it would be handy if %reset would clear the namespace and the cache for the imports (as in the notebook) one can explicitly reload a previously imported module using importlib.reload in python3.4 or imp.reload in python3.0-3.3 (and if needed reset the kernel in a second step).
I could restart the kernel, but some console sessions take longer to reconnect. Notebook detects kernel restart instantly.
ipykernel.ipkernel.IPythonKernel class has a do_shutdown method with restart parameter which defaults to False.
Get a reference to ipykernel.kernelapp.IPKernelApp which has a reference to the kernel and call do_shutdown of the kernel by passing True.
import IPython
app = IPython.Application.instance()
app.kernel.do_shutdown(True)
How did I test?
$ #start notebook
$ jupyter notebook
$ #connect to existing kernel
$ jupyter console --existing
If you have installed Spyder with anaconda, then open Spyder window.
Then Consoles (menu bar) -> Restart Consoles.
or you can use CTRL+. which is a shortcut key to restart the console.
In the qt console you could hit ctrl-
IPython Qt-console has a reset kernel feature. You could use that if you are using IPython Qt. IMO it is better than using from the shell.
来源：https://stackoverflow.com/questions/26603456/reset-ipython-kernel