import networkx as nx
from bokeh.models import (BoxSelectTool, HoverTool, MultiLine,
NodesAndAdjacentNodes, Plot, Range1d, Scatter, TapTool)
from bokeh.palettes import Spectral4
from bokeh.plotting import from_networkx, show
G = nx.karate_club_graph()
plot = Plot(width=400, height=400, x_range=Range1d(-1.1, 1.1), y_range=Range1d(-1.1, 1.1))
plot.title.text = "Graph Interaction Demonstration"
plot.add_tools(HoverTool(tooltips=None), TapTool(), BoxSelectTool())
graph_renderer = from_networkx(G, nx.circular_layout, scale=1, center=(0, 0))
scatter_glyph = Scatter(size=15, fill_color=Spectral4[0])
graph_renderer.node_renderer.glyph = scatter_glyph
graph_renderer.node_renderer.selection_glyph = scatter_glyph.clone(fill_color=Spectral4[2])
graph_renderer.node_renderer.hover_glyph = scatter_glyph.clone(fill_color=Spectral4[1])
ml_glyph = MultiLine(line_color="#CCCCCC", line_alpha=0.8, line_width=5)
graph_renderer.edge_renderer.glyph = ml_glyph
graph_renderer.edge_renderer.selection_glyph = ml_glyph.clone(line_color=Spectral4[2], line_alpha=1)
graph_renderer.edge_renderer.hover_glyph = ml_glyph.clone(line_color=Spectral4[1], line_width=1)
graph_renderer.selection_policy = NodesAndAdjacentNodes()
graph_renderer.inspection_policy = NodesAndAdjacentNodes()
plot.renderers.append(graph_renderer)
show(plot)
