Plotly save as pdf

Using Streamlit
1

I want to be able to save a plotly as a pdf

Steps to reproduce

Code snippet:

if st.button("Run " + str(test) + " Test Tool"):
	
    # use specs parameter in make_subplots function to create secondary y-axis
    fig = make_subplots(specs=[[{"secondary_y": True}]])
    
    # plot a scatter chart by specifying the x and y values
    # Use add_trace function to specify secondary_y axes.
    fig.add_trace(
        go.Line(x=df.index, y=df[' Power'], name="KW"),
        secondary_y=False)
    
    # Use add_trace function and specify secondary_y axes = True.
    fig.add_trace(
        go.Line(x=df.index, y=df['Hz'], name="Hz"),
        secondary_y=True,)
    
    # Adding title text to the figure
    fig.update_layout(
        title_text="Hz Vs KW"
    )
    
    # Naming x-axis
    fig.update_xaxes(title_text="Datetime")
    
    # Naming y-axes
    fig.update_yaxes(title_text="<b>KW</b> axis ", secondary_y=False)
    fig.update_yaxes(title_text="<b>Hz</b> axis ", secondary_y=True)

    #Ensure line is connected
    fig.update_traces(connectgaps=True)

    st.plotly_chart(fig)
    
if st.button("Save Excel Data"):
        save_path = "../../data/output/" + test + '/' + customer
        ensure_dir(save_path)
        df.to_excel(save_path +'_' + datetime.datetime.today().strftime("%d-%m-%Y") + '_' + test + '.xlsx')
        pio.write_image(fig, save_path + datetime.datetime.today().strftime("%d-%m-%Y") + '_' + test + '_' + customer + '.pdf')

The excel save works but the pdf save keeps failing.

2

When you click the second button, the first one reverts back to False, so the fig is not created. You can try keeping the figure in the st.session_state so it persists.

Check this other post: How to do nested button and print both button outputs? - #2 by mathcatsand

3

This topic was automatically closed 365 days after the last reply. New replies are no longer allowed.