The yandex2spotify repository provides a command-line tool for migrating personal music data from Yandex.Music to Spotify. The tool facilitates the transfer of liked tracks, playlists, albums, and artists by leveraging the respective APIs of both services. Users authenticate with Spotify via OAuth and provide a Yandex.Music token to access their data. The application is structured around a single Python script, `importer.py`, which defines an `Importer` class responsible for orchestrating the import process. This class contains methods for each import category (likes, playlists, albums, artists) and a generic method for importing from a JSON file. The implementation includes robust error handling for API rate limits and timeouts via a custom decorator, and utilizes batching to efficiently process large numbers of items via the Spotify API. While the codebase is relatively small and focused, it exhibits several sound software engineering practices, such as modularization of import logic, reusable utility functions (e.g., for chunking lists), and thoughtful handling of edge cases (e.g., truncating overly long track names). The tool depends on the `spotipy`, `yandex-music`, and `Pillow` libraries, and is designed to be run in a standard Python 3.8+ environment.