omicverse.single.download_cl

omicverse.single.download_cl(output_dir='new_ontology', filename='cl.json')[source]

📥 Download Cell Ontology file from multiple sources with automatic fallback

This is a standalone function that downloads cl.json from multiple sources: 1. Official OBO Library (direct JSON) 2. OSS Mirror for Chinese users (ZIP format) 3. Google Drive backup (ZIP format)

Parameters:

  • output_dir (str, optional) – Directory to save the file (default: “new_ontology”)

  • filename (str, optional) – Output filename (default: “cl.json”)

Returns:

  • success (bool) – True if download successful, False otherwise

  • file_path (str or None) – Path to downloaded file if successful

Examples

>>> success, file_path = download_cl()
>>> if success:
...     print(f"Downloaded to: {file_path}")

>>> success, file_path = download_cl("my_data", "cell_ontology.json")