Adding Variable as Plotly Graph Title Error

Question

I'm starting to learn Python and I'm currently using the Plotly Library. For some reason the formatting of my title is causing an error

title_font = dict(
                title="<b>Plot</b>",
                size=14,
                color='black',
                family='Arial')

layout = go.Layout(title_font,
                        xaxis= {'title':'Temperature level'},
                        yaxis=dict(title='Sea Level'),
                        hovermode='closest')

The error started when I pulled the Title name out of layout and created a variable for it.

Is this the code that produces the error? What's the traceback? — Reti43
– Reti43, Commented Dec 30, 2020 at 23:08
@Reti43, ValueError: Invalid property specified for object of type plotly.graph_objs.Layout: 'size' — GB23
– GB23, Commented Dec 30, 2020 at 23:15

houtanb · Accepted Answer · 2021-01-02 02:25:42Z

1

You are setting the size property for layout, but it's not a valid property for layout as the error message says. You had also added the title in the title.font section which is incorrect. The correct code is:

title_font = dict(
                size=14,
                color='black',
                family='Arial')

layout = go.Layout(title="<b>Plot</b>",
                   title_font=title_font,
                        xaxis= {'title':'Temperature level'},
                        yaxis=dict(title='Sea Level'),
                        hovermode='closest')

edited Jan 2, 2021 at 2:25

answered Jan 1, 2021 at 21:03

houtanb

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