javascript - Display node information(other custom information) when i hover/click over a node in Graphviz in python -

i coding in python importing graphviz, have set of nodes want display further info once hover/click on node. tried googling looks site http://www.graphviz.org/ down. can me out on this.

 import graphviz gv  g1.attr('node',shape="box")  g1.attr('node',fontname="lucida sans   unicode",style="filled",fillcolor="mediumslateblue",label="hostinfo")  g1.attr('node',url="http://google.com")  g1.node(dest)