After totally cleaning my macports installation and reinstalling everything, I ended up having py27-jupyter and py36-jupyter installed :
Macports>port -v installed py36-jupyter The following ports are currently installed: py36-jupyter @1.0.0_1 (active) platform='darwin 16' archs='noarch' date='2018-04-19T17:14:49+0200' Macports>port -v installed py27-jupyter The following ports are currently installed: py27-jupyter @1.0.0_1 (active) platform='darwin 16' archs='noarch' date='2018-04-19T11:58:23+0200’ but to activate the 2.7 version I can type : jupyter notebook while for activating the 3.6 version I finally found that I have to type the old style command : ipython3 notebook Why can’t I activate a jupyter3 version ? I tried this command : sudo port select --set jupyter3 py36-jupyter Password: Selecting 'py36-jupyter' for 'jupyter3' failed: The specified group 'jupyter3' does not exist. without success (ok, it was not offered but I tried…). Laurent
