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feature:st.pydeck_chartRelated to the `st.pydeck_chart` elementRelated to the `st.pydeck_chart` elementpriority:P3Medium priorityMedium prioritystatus:confirmedBug has been confirmed by the Streamlit teamBug has been confirmed by the Streamlit teamtype:bugSomething isn't working as expectedSomething isn't working as expected
Description
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- I have searched the existing issues for similar issues.
- I added a very descriptive title to this issue.
- I have provided sufficient information below to help reproduce this issue.
Summary
If the data used in pydeck contains NaN (even if it is not used), the application fails with

Reproducible Code Example
import math, pandas, pydeck, streamlit
streamlit.set_page_config(layout="wide")
data = pandas.DataFrame({"lng": [-109.037673], "lat": [36.994672], "weight": [math.nan]})
layer = pydeck.Layer("ScatterplotLayer", data=data, get_position=["lng", "lat"], radius_min_pixels=4)
deck = pydeck.Deck(layers=[layer], map_style=pydeck.map_styles.CARTO_LIGHT, tooltip={"text": "weight: {weight}"})
deck.to_html("test.html")
streamlit.pydeck_chart(deck, use_container_width=True)Steps To Reproduce
Run the code as usual.
Expected Behavior
No error, as in the file test.html generated
Current Behavior
SyntaxError:
Unexpected token 'N', ...""weight": NaN "... is not valid JSON
Is this a regression?
- Yes, this used to work in a previous version.
Debug info
- Streamlit version: Streamlit v1.15.1
- Python version: 3.10.4 (tags/v3.10.4:9d38120, Mar 23 2022, 23:13:41) [MSC v.1929 64 bit (AMD64)]
- Operating System: Windows 10.0.19045.2251
- Browser: Chome, Opera, Edge, Firefox
- Virtual environment: poetry
Additional Information
No response
Are you willing to submit a PR?
- Yes, I am willing to submit a PR!
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feature:st.pydeck_chartRelated to the `st.pydeck_chart` elementRelated to the `st.pydeck_chart` elementpriority:P3Medium priorityMedium prioritystatus:confirmedBug has been confirmed by the Streamlit teamBug has been confirmed by the Streamlit teamtype:bugSomething isn't working as expectedSomething isn't working as expected