# Streamlit Common Issues

> Sub-skill of streamlit: Common Issues.

- Skill: `vamseeachanta/streamlit-common-issues` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/streamlit-common-issues`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/streamlit-common-issues/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/streamlit-common-issues

---


# Common Issues

## Common Issues


**Issue: App reruns on every interaction**
```python
# Use forms to batch inputs
with st.form("my_form"):
    input1 = st.text_input("Input")
    submit = st.form_submit_button()
```

**Issue: Slow data loading**
```python
# Add caching
@st.cache_data(ttl=3600)
def load_data():
    return pd.read_csv("large_file.csv")
```

**Issue: Memory issues with large files**
```python
# Use chunking
@st.cache_data
def load_large_file(path, nrows=10000):
    return pd.read_csv(path, nrows=nrows)
```

**Issue: Widget state lost on rerun**
```python
# Persist in session state
if "value" not in st.session_state:
    st.session_state.value = default_value

# Use key parameter
st.text_input("Name", key="user_name")
```