kindlestrip

A pip install-able conversion of Paul Durrant's kindlestrip library to strip the penultimate record from a Mobipocket file. (http://www.mobileread.com/forums/showthread.php?t=96903)

Usage

To install:

pip install kindlestrip

To use:

$ kindlestrip input.mobi output.mobi

$ du -sh *
268K    input.mobi
200K    output.mobi

Or run it without installing, straight from PyPI with uv:

$ uvx kindlestrip input.mobi output.mobi

kindlestrip.py is also a self-contained PEP 723 script, so you can run the local file without installing anything:

$ uv run kindlestrip.py input.mobi output.mobi

Options:

$ kindlestrip --help
$ kindlestrip -d input.mobi output.mobi   # also dump the stripped SRCS records

Development

Requires Python 3.10–3.14. Common tasks are in the justfile:

$ just test    # run pytest
$ just lint     # ruff check + format
$ just build    # build sdist + wheel

Releasing

Versions follow CalVer (YYYY.MM.PATCH) and are managed by bump-my-version. Releases publish to PyPI automatically via GitHub Actions using Trusted Publishing (OIDC — no API tokens).

To cut a release:

$ just release          # bump the patch (e.g. 2026.7.0 -> 2026.7.1), commit, tag, push
$ just release month    # start a new month (recomputes YYYY.MM from today's date)

just release bumps the version in kindlestrip.py and pyproject.toml, creates a commit and a bare CalVer git tag (e.g. 2026.7.1), and runs git push --follow-tags. Pushing that tag triggers .github/workflows/release.yml, which builds with uv build and publishes to PyPI. Only a version tag publishes — a plain git push never does.