System Workbench for STM32

Mac OS sierra version 10.12.6 won't install the .run installation file

The advice from jLn_38 and ncertad worked for me on macOS High Sierra 10.13.6 (is there a way to give points/upvote?), although be aware that the installation may freeze at step two when it is waiting for a password in the terminal, but it’s not obvious why it has stopped.