Bilili-downloader

**Quick judgment:** A focused, high-utility downloader for Bilibili content that wraps yt-dlp/ffmpeg with series detection, batch options, and progress reporting. Very useful for users who legitimately need local copies of Bilibili videos, but carries non-trivial legal/ToS risk if misused. **Strengths:** - Handles single videos and series/collections, with explicit batch and non-batch modes. - Supports format/quality selection and shows real-time download progress. - Simple workflow: assistant first asks for the Bilibili URL, then runs a clear Python CLI command. **Key risks and constraints:** - Copyright and Bilibili Terms of Service: downloading may be restricted or prohibited for many videos; use should be limited to personal backup, owned content, or clearly permitted material. - Technical limitations: VIP/DRM/region-locked content may fail or require user-provided cookies; changes to Bilibili’s site can break yt-dlp extraction logic. - Environment dependencies: requires Python ≥3.6, yt-dlp, and ffmpeg to be installed and correctly configured. **Recommended scenarios:** - Users wanting offline access to their own Bilibili uploads or content they have explicit rights to archive. - Learners or researchers archiving allowed educational series/playlists for study in low-connectivity conditions. - Power users who already understand the legal boundaries of video downloading and need a Bilibili-specific, batch-capable tool integrated into assistant workflows.