import plotly.express as px
df = px.data.iris()
fig = px.scatter(df, x="sepal_length", y="sepal_width", facet_col="species")
# sources of images
sources = [
 "https://upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Iris_setosa_var._setosa_%282595031014%29.jpg/360px-Iris_setosa_var._setosa_%282595031014%29.jpg",
 "https://upload.wikimedia.org/wikipedia/commons/thumb/3/38/Iris_versicolor_quebec_1.jpg/320px-Iris_versicolor_quebec_1.jpg",
 "https://upload.wikimedia.org/wikipedia/commons/thumb/f/f8/Iris_virginica_2.jpg/480px-Iris_virginica_2.jpg",
]
# add images
for col, src in enumerate(sources):
 fig.add_layout_image(
 row=1,
 col=col + 1,
 source=src,
 xref="x domain",
 yref="y domain",
 x=1,
 y=1,
 xanchor="right",
 yanchor="top",
 sizex=0.2,
 sizey=0.2,
 )
fig.show()

ValueError:
 Invalid value of type 'builtins.str' received for the 'yref' property of layout.image
 Received value: 'y domain domain'

import plotly.graph_objects as go
fig = go.Figure()
fig.add_traces(go.Scatter(x=[1,2,3],y=[1,2,3], yaxis='y',name='y1 trace'))
fig.add_traces(go.Scatter(x=[1,2,3],y=[3,2,1], yaxis='y2',name='y2 trace'))
fig.add_traces(go.Scatter(x=[2,3,4],y=[4,4,3], yaxis='y3',name='y3 trace'))
fig.add_hline(y=3, yref='y3', label={'text':'hline annotation text on y3'})
fig.add_hrect(y0=3.5, y1=4, annotation_text='hrect annotation text on y3', yref='y3')
fig.update_layout(
 xaxis=dict(domain=[0, 0.9]),
 yaxis=dict(title="yaxis1 title"),
 yaxis2=dict(title="yaxis2 title",overlaying="y",side="right",position=0.9,),
 yaxis3=dict(title="yaxis3 title",overlaying="y",side="right",position=1,)
)
fig.show()

fig = go.Figure()
fig.add_traces(go.Scatter(x=[1,2,3],y=[-0.009,-0.008,-0.01], yaxis='y',name='y1 trace'))
fig.add_traces(go.Scatter(x=[2,3,4],y=[-50,-52,-58], yaxis='y3',name='y3 trace'))
fig.add_hline(y=-58., 
 line_color='darkblue',
 yref = 'y3',
 line_dash='dot',
 annotation_text='annotation goes here (y3)',
 annotation_position='bottom right'
 )
fig.add_hline(y=-52., 
 line_color='darkblue',
 yref = 'y3',
 line_dash='dot',
 annotation_text='annotation goes here (y3)',
 annotation_position='bottom right'
 ) 
fig.update_layout(
 xaxis=dict(
 title='some x axis',
 domain=[0.04,0.92],
 range=['2023-1-1','2024-1-1']), 
 yaxis=dict(
 title='some y axis',
 range=[-0.017,-0.0068],
 gridcolor='lightgrey'
 ),
 yaxis3=dict(
 title='another y axis',
 anchor='x',
 overlaying='y',
 side='right',
 tickmode='array',
 tickvals=[-52,-55,-58],
 range=[-60,-21],
 ),
)
plotly.offline.plot(fig,filename='plot_temp.html')