Ipython notebook will not start on command line

Question

I tried to open ipython in terminal with ipython notebook and it will not open ipython notebook. It gives the following error:

| ~/documents/ud         


        

Answer 1

I liked most imarti's solution:

export BROWSER=open

It is low overhead and works with your default browser

EDIT: macOS 10.12.6 has been released, so now the recommended solution is to just update your OS.