Console Log: ===== ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Connecting to board named = xxxx, type = xxxx ... cu: Stale lock /var/lock/LCK..ttyS0 held by process 19642 created 2019-01-18 18:21:16 Connected. dut device console = black unbound method __init__() must be called with spawn instance as first argument (got DebianBox instance instead) Failed to connect to any board I am trying to modified the the DebianBox class to have a ssh connection from connection_decider instead of initizing it in the Debain class itslef snipeet: self.handle = connection_decider.connection self.handle.connect()