Which APRS password?

[jwalsh2me]

I am following the example here to send a test packet: Doc

import aprslib

# a valid passcode for the callsign is required in order to send
AIS = aprslib.IS("MyCall", passwd="p@sswordIsHere", port=14580)
AIS.connect()
# send a single status message
AIS.sendall("MyCall>APRS,TCPIP*:>status text")

I am getting aprslib.exceptions.LoginError: Password is incorrect

I have tried the login password I use on aprs.fi, as well as my API Key.

I seem to be missing something obvious here any guidance is appreciated.

John