bokeh_segment.py

from bokeh.plotting import figure, show
from bokeh.models import ColumnDataSource
from bokeh.models import HoverTool

data = ColumnDataSource(data=dict(x0=[1, 2, 3], y0=[1, 2, 3], x1=[1.2, 2.4, 3.1],
          y1=[1.2, 2.5, 3.7], text=["a", "b", "c"]))

hover = HoverTool(tooltips=[
    ("desc", "@text"),
])

p = figure(plot_width=400, plot_height=400, tools=[hover])
p.segment(x0="x0", y0="y0", x1="x1", y1="y1", color="#F4A582", source=data)

show(p)