Add native Polars DataFrame support#99

Open

stewjb wants to merge 41 commits intospotfiresoftware:mainfrom

Commits on Mar 24, 2026

Commits on Mar 25, 2026

Fix dict-of-lists export bug and O(n²) iterable export loop

stewjb
and
claude
committed
Build nullable integer columns with mask in one shot on import

stewjb
and
claude
committed
Merge branch 'main' of github.com:spotfiresoftware/spotfire-python
stewjb
committed

Commits on Apr 3, 2026

Address review: metadata warnings, descriptive errors, and 1-copy datetime import

stewjb
and
claude
committed
Add arithmetic correctness test for Polars date epoch conversion

stewjb
and
claude
committed
Fix Polars temporal import to be genuinely zero-copy

stewjb
and
claude
committed
Perf: convert Date ms→days as int32 at C level (1 copy instead of 2)

stewjb
and
claude
committed
Perf: zero-copy Polars export for temporal/numeric types

stewjb
and
claude
committed
Fix: remove illegal implementation signature from sbdf.pyi stub

stewjb
and
claude
committed
Fix: zero null positions before pl.Series(pl.Time) construction on import

stewjb
and
claude
committed
Fix: add polars to mypy ignore_missing_imports overrides

stewjb
and
claude
committed
Docs: update README to show OutputFormat enum for import_data

stewjb
and
claude
committed
Docs: add concrete import_data example with OutputFormat enum

stewjb
and
claude
committed
Remove string-literal fallback from import_data output_format

stewjb
and
claude
committed

Commits on Apr 4, 2026