On Oct 25, 2017, at 22:42, pagani laurent wrote: > Lorenzo>sudo port select --set ipython2 py27-ipython > Selecting 'py27-ipython' for 'ipython2' succeeded. 'py27-ipython' is now active. > Lorenzo>ipython2 > ipython2: Command not found. > > Why ? I can't explain that. It works for me.