Plotly is an open-source charting library that draws interactive charts (hover, zoom, pan, export) from Python with plotly.py and Plotly Express, or in the browser with plotly.js. Use when a user asks to plot data with Plotly, make a scatter plot, line chart, bar chart, heatmap, choropleth map, 3D chart or subplot grid, export a chart to HTML or PNG, build a Dash dashboard, add a chart to a React app with react-plotly.js, or fix a chart that broke after upgrading to plotly.py 6/7 or plotly.js 3/4.
