nbprune

typical use case is, a teacher writes a notebook, with solution(s) to a problem that students must solve
so this means 2 versions, one for the teacher(s) with the solutions, and one for the students
this tool defines annotations that the teacher can use to define the parts that will be automatically removed by the tool

keywords

here are the recognized keywords

NOTES

• (*) because prune-begin-next and prune-end-previous appear in a cell that is visible, the whole line containing the tag is removed from the output, so it is probably best to keep these tags on a separate line
• (**) prune-line variants of course are not relevant, and are ignored, if set in the cell's metadata tags

line format

the tool will consider a tag is present in a cell if any line in the cell contains one of the above keywords, with the beginning of the line containing only # and spaces or tabs

so for exemple

cell metadata

the tags can also be set in the cell's metadata as well (except for prune-line) ; something like this

{
  "tags": [
    "prune-cell"
  ]
}

examples

so that these 2 scenarios are equivalent

or