Blosc/python-blosc2

[DOC] Tutorial: variable-length columns (ListArray and BatchArray)

Open

#649 aperta il 2 giu 2026

Vedi su GitHub
 (0 commenti) (0 reazioni) (0 assegnatari)Python (47 fork)auto 404
documentationgood first issue

Metriche repository

Star
 (207 star)
Metriche merge PR
 (Metriche PR in attesa)

Descrizione

12.batcharray.ipynb covers BatchArray basics but there is no tutorial for ListArray — the newer, more flexible varlen column type. Users working with nested or ragged data (e.g. GPS waypoints, tags, embeddings of varying length) have no worked example to follow.

Suggested work: Extend 12.batcharray.ipynb or add 12b.listarray.ipynb covering:

  • Creating a ListArray with item_spec
  • Appending, extending, and fancy-indexing
  • Embedding a ListArray as a column inside a CTable (using the dataclass schema API)
  • Arrow round-trip (from_arrow / to_arrow)
  • When to prefer ListArray over BatchArray

Guida contributor