ebokeh is an enhanced bokeh that can plot line, circle and so on with pd.DataFrame or list of soure fields straightly. So you can plot like this:
fig = figure('Fig')
fig.line(df)
or
fig = figure('Fig')
fig.line('x', ['y1', 'y2', 'y3'], source=source)
or
fig = figure('Fig')
fig.line('x', 'y1,y2,y3', source=source)
For ore details, see the test file.