Multiple Virtuoso Instances

You can run multiple Virtuoso instances and have a running server inside each of them. However, in order to match the clients and server correctly you must start and connect a bit differently:

Virtuoso Instance 1

; This starts the server with the default id
load("PATH-TO-IPC-SERVER")
pyStartServer

Python Client 1

ws = Workspace.open()

Virtuoso Instance 2

; This starts the server with a custom id
load("PATH-TO-IPC-SERVER")
pyStartServer "some-id"

Python Client 2

ws = Workspace.open('some-id')

You could even open both Workspaces in a single python session, but it is not possible to run two python servers in a single Virtuoso session.