XML Client Issue - Gnuradio 3.8

Good evening,

I'm experiencing this error while using a XMLRPC Client block:

#########################

Executing: /usr/bin/python3 -u /home/vic/remote-trx/local_6.py

  File "/home/vic/remote-trx/local_6.py", line 192
    self.xmlrpc_client_0 = xmlrpclib.Server('http://'192.168.1.80':12100')
                                                           ^
SyntaxError: invalid syntax

#########################

I'm on version 3.8, and I suppose that this issue it's related to this Gnuradio version; in version 3.7 all runs fine (the counterpart of this flowgraph sits on a Gnuradio 3.7 and there isnt any problem)

Any suggestion / workaround ???

Thanks in advance,

Vittorio I3VFJ