Controlling Data Freshness in Streamlit with st.cache_data TTL
Avoid re-running expensive queries on every Streamlit interaction by using st.cache_data with a tuned TTL and hashable arguments.
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Diagnosing Streamlit Widget State Loss and Fixing with st.session_state
Learn why Streamlit widgets revert to defaults and how to persist selections using st.session_state with a step‑by‑step diagnostic guide.
Optimizing Streamlit Apps with @st.cache_data
Learn how to use @st.cache_data to eliminate redundant computations in Streamlit apps, including practical examples of TTL configuration and the critical difference between data and resource caching.
pythonStopping the Rerun Loop: Optimizing Streamlit with @st.cache_data
Stop the frustrating lag of script reruns. Learn how to use @st.cache_data to optimize data loading and API calls in Streamlit for a snappier user experience.
Diagnosing @st.cache_data misses, stale data and memory growth in Streamlit apps
A practical diagnostic guide for Streamlit @st.cache_data problems: unexpected recomputation, stale data, unhashable errors and memory growth, with ordered checks, fixes and escalation criteria.
Choosing the Right Cache for Streamlit: st.cache_data vs st.cache_resource vs st.session_state
When building a Streamlit app you’ll often need to reuse expensive work. This guide walks you through the four caching options – st.cache_data, st.cache_resource, st.session_state, and no caching – and shows how to pick the right one for multi‑user deployments, memory limits, and per‑user isolation.
st.cache_data or st.cache_resource? Choosing the Right Streamlit Cache
Streamlit reruns your script on every interaction. Pick st.cache_data for serializable results and st.cache_resource for live connections and models—here is how to decide.
Diagnosing Stale State and Variable Resets in Streamlit
Streamlit reruns your entire script on every interaction. Learn how to diagnose why variables reset, and how st.session_state, caching, and widget keys fix stale state.
Designing Streamlit Apps Around Session State: An Architecture Note
An architecture note on st.session_state: what it guarantees, where the trust and memory boundaries sit, how to verify behavior, and when to move persistence elsewhere.