Is plotly express timeline down?


I can’t make plots on streamlit using the px.timeline, even using the basic dummy data this is always returning

TypeError: Object of type timedelta is not JSON serializable

import as px
import pandas as pd

df = pd.DataFrame([
    dict(Task="Job A", Start='2009-01-01', Finish='2009-02-28'),
    dict(Task="Job B", Start='2009-03-05', Finish='2009-04-15'),
    dict(Task="Job C", Start='2009-02-20', Finish='2009-05-30')

fig = px.timeline(df, x_start="Start", x_end="Finish", y="Task")
fig.update_yaxes(autorange="reversed") # otherwise tasks are listed from the bottom up

Hi @Addb !

Welcome on the forum! :tada:

Nothing is wrong with px.timeline() :ok_hand:

I’ve never used streamlit, but using this snippet locally, I get:

I used it a couple of weeks ago to help someone:

I would say that’s coming from streamlit.
Try print(fig) before st.plotly_chart(fig) to see what px.timeline() outputs.

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Interesting. I’ve had the same error, in my post here:

But running that snippet now in my console, I get no error.

Programming can be a mystery sometime ! :roll_eyes:
But I prefer a working mystery than a not working mystery ! :upside_down_face:

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