After successful setup, you can start a the co-simulation via the command line.

As requires to manage Linux network namespaces, super-user permissions are required. Thus, make sure to either login as root or use sudo.

For starting the simulation, you need to specify a scenario, which can be found in the scenarios folder. 

sudo python3 -m wattson wattson/scenarios/cigre_mv

As soon as Wattson has been started, you can interact with the simulation via the CLI, or use the WattsonClient for a programmable interface.