get_comm returns ValueError if connected to a tango tevice server
get_comm
method form bliss/comm/utils.py
serves to get the object from the communication layer and thus to make possible the usage of different type of communication channels for the same controller. In the case of TANGO device server er it exits with ValueError. An expected (and desired) behaviour would be to also return the communication object (e.g. Serial line or GPIB device server).
Edited by Antonia Beteva