[bigreddot]

> If you merge the library projects together

Alas, it's not so simple. How much actual overlap is there to merge in Bokeh and Matplotlib, for instance? MPL renders images in Python and has no JS component. Bokeh does all of its rendering in JavaScript! The Python API is mostly just a thin wrapper around BokehJS. MPL has no server component at all. Neither of the does what Datashader does for large data sets. Neither of them has a high level statistical charting API, that's only in Seaborn or Chartify. Merging all these things together would cost a fortune in time and money, and at the end of the day not actually reduce the total codesize to any appreciable degree.