- knot [1]: tangles source code from a text file formatted using plain markdown syntax, can use any markdown converter for weaving into a printable document
- snarl [2]: extends markdown code blocks with syntax used for tangling, its "weave" steps just removes the additional syntax and outputs plain markdown
- pylit [3] [4]: a bidirectional converter: code to formatted text and back. Uses reST for formatting, and preserves line numbers which is useful when debugging. Not an LP tool strictly, as it doesn't define/rearrange code blocks so you have to write your script in the order the compiler wants it, not in the order that would make the best exposition.
Both seem to preserve relative indentation of chunks, so would be useful for Python too.
[1]: https://github.com/mqsoh/knot [2]: https://blog.oddbit.com/post/2020-01-15-snarl-a-tool-for-lit... [3]: https://github.com/gmilde/PyLit [4]: https://github.com/slott56/PyLit-3