opengeos/leafmap ? reverse-engineered prompt

Build me a Python package for interactive mapping and geospatial analysis that works nicely in Jupyter notebooks and similar notebook tools. I want it to let someone load common vector and raster files, show them on an interactive map, and do basic spatial analysis with as little code as possible. It should feel friendly for beginners, but still useful for more advanced users who want to build map based workflows or simple web apps.

Please include a clean notebook friendly API, a small set of examples, and a documentation site that shows the main things people can do right away. It would be great if the package can work with popular map backends like folium and ipyleaflet, and support interactive controls for loading data and running geospatial tools. If you need to check current docs for any of the mapping or widget libraries, look them up online first.