Df.fillna() throws error in streamlit

Using Streamlit
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values = {‘director’: ‘unknown_director’, ‘cast’: ‘unknown_cast’, ‘country’: ‘unknown_country’, ‘date_added’: ‘unknown_date_added’, ‘rating’: ‘unknown_rating’, ‘duration’: 0}
df.fillna(value = values, inplace = True)
df.head(10)

This is the code I’ve used in the Jupyter Notebook, it works totally fine but on Streamlit it throws the following error.
ArrowInvalid: (‘cannot mix list and non-list, non-null values’, ‘Conversion failed for column director with type object’)
I’m running the app locally and it’s not deployed yet.

2

Actually that code raises NameError because df is undefined. After defining df the code works for me. But it is unlikely that I defined it the same way you did.

1 Like
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Thank you so much.

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