so basically you can use any tcpip based mechanism to 'telnet' into catalyst on port 8080- and type or run the command
the 'GET' simulates the http GET command- the 'HTTP/1.0' is the end of line for an http request.Code:GET /commands/?RunPreset=2 HTTP/1.0
example telnet capture shown here-
should be the exact same command format from spyder - http requests are just a special format of generic network commands.