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Whisper-Transcription: Debunking the st.plotly_chart kwargs Deprecation Myth

When using st.plotly_chart with width="content", the old warning about deprecated kwargs shows up - even when only width is passed and no extra arguments. This isn’t a bug, but a leftover warning that hasn’t fully vanished.

Streamlit’s latest docs confirm that kwargs is now deprecated for this function. Using width="content" should no longer trigger the warning - yet many developers still get a loud “deprecated keyword arguments” alert.

Here is the deal: the warning persists because Streamlit’s frontend still clings to legacy UIs built before the kwargs deprecation was enforced. This creates a false sense of risk, especially when only width is set. Your plot should render fine - no hidden errors lurking.

The Psychology Behind the Alert The persistent warning isn’t just technical - it’s psychological. Users fear breaking invisible changes, even when they’re safe. This fear spikes around deprecations, where docs update faster than browser caching. Streamlit’s warning plays into that anxiety, even if the real issue is purely cosmetic.

Culture & Safety in Data Visualization In modern digital culture, transparency matters. When tools issue warnings, users trust them to be honest - even if the risk is minimal. The width="content" pattern is widely used, and now safely supported, yet many still report false deprecation issues.

What to Do - And What to Ignore

• Use width="content" confidently: no deprecation warnings, no crashes.
• Ignore warnings that stem from outdated frontend logic - no real harm.
• Stay vigilant about actual errors, not phantom ones.

The Bottom Line: Your chart will render cleanly with width="content". The “deprecated kwargs” warning is a relic, not a threat. Focus on clarity, not fear.

st.plotly_chart with width="content" works - no twists, no traps.