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Don't block on rospy.init_node

Hello,

Simple question : is there a way for not blocking on init_node call ?

Doing it (Python) ;

      init_node("MyNode", disable_signals=True)

if roscore is not launched I get, which is normal, this :

      Unable to register with master node [http://localhost:11311/]: master may not be running yet. Will keep trying.

However it's not raising ROSException so it just blocks on it. Can we prevent it ?

Thank you for your help