Ipython - get a list of all kernels (user + default)

I'm looking for a way to get a list (or dict) with the names of all installed ipython kernels on systems programmatically (not via the command line). So far I have this:

from jupyter_client.kernelspecapp import KernelSpecManager
print(KernelSpecManager().find_kernel_specs())

      

        
        
        
      

    

or (but this gives a failure warning):

from IPython.kernel.kernelspec import find_kernel_specs
print(find_kernel_specs())

      

        
        
        
      

    

There is also a way using ipykernel, but no documents were found.

All of the above gives me a dictionary with kernels that I installed using ipykernel

, but not the default kernel (for example Python 3

), which is shown in the notebook:

{'lab2': '/home/alex/.local/share/jupyter/kernels/lab2',
 'lab3': '/home/alex/.local/share/jupyter/kernels/lab3',
 'python2': '/usr/local/share/jupyter/kernels/python2'}

      

        
        
        
      

    

Is there a way to get a list of all kernels?