ranobelib-python-sdk

Async Python SDK for ranobelib.me: fetch title metadata, download chapters and volumes, and export to epub, fb2, txt, or pdf.

The SDK talks to the undocumented but open JSON API behind the site (api.cdnlibs.org, part of the lib.social network) instead of scraping HTML.

Status: all the calls in the quickstart below are implemented — metadata, table of contents, single/bulk chapter and volume downloads, whole-title bulk download, translation selection, and export to "txt", "fb2", "epub", or "pdf" (cover + in-chapter illustrations embedded in epub/pdf). Raw API responses are cached to disk, and the underlying client bounds concurrency, paces requests, and retries 429/5xx with backoff. fmt="pdf" needs WeasyPrint's native dependencies (Pango/cairo/GTK3) installed on the system — pip install/uv add alone doesn't guarantee that on every platform; without them, export(fmt="pdf") raises the same "unknown format" error the other three formats don't. Authorization (private/18+/paid content) is out of scope — see CLAUDE.md for the full architecture and design decisions behind all of this.

Installation

uv add ranobelib-python-sdk

pip install ranobelib-python-sdk

Requires Python 3.11+.

Quickstart

from ranobelib import RanobeLib

async with RanobeLib("https://ranobelib.me/ru/book/6712--high-school-dxd-novel") as lib:
    info = await lib.get_info()
    toc = await lib.get_table_of_contents()

    chapter = await lib.get_chapter(volume=6, number="51.6")
    volume = await lib.get_volume(volume=6)

    chapters = await lib.get_chapters([(6, "51.6"), (6, "52")])
    volumes = await lib.get_volumes([1, 2, 3])

    translations = await lib.get_translations(volume=6, number="51.6")
    chapter = await lib.get_chapter(volume=6, number="51.6", branch_id=...)

    all_volumes = await lib.download_title(translation_index=0, chapter_delay=0.5)

    await lib.export(chapters, fmt="epub", path="output.epub")

This is the full current public API — everything above is implemented and works today.

Examples

Complete, runnable scripts for every feature above — title metadata, table of contents, single/bulk chapter and volume downloads, translation selection, whole-title bulk download, disk caching, export to all four formats, and error handling — live in examples/, one heavily commented file per feature. Start there for copy-pasteable code.

Documentation

Full API reference and guides: https://LLIJIYAPNIK.github.io/ranobelib-python-sdk/ (built with mkdocs-material + mkdocstrings, deployed on push to main). CLAUDE.md documents the full architecture, public API contract, and the reasoning behind the SDK's design decisions. CHANGELOG.md lists what changed in each release.

License

MIT — see LICENSE.

Metadata

Release files for ranobelib-python-sdk 0.10.0

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Source distribution for ranobelib-python-sdk 0.10.0
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