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Dataframes powered by a multithreaded, vectorized query engine, written in Rust

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Polars py-1.2.1

Polars: py-1.2.1 Release

Release date:

July 18, 2024

Previous version:

py-1.2.0 (released July 16, 2024)

Magnitude:

934 Diff Delta

Contributors:

11 total committers

Data confidence:

Commits:

16 Commits in this Release

Ordered by the degree to which they evolved the repo in this version.

refactor: Add reduce `ComputeNode` in new streaming engine (#17389)

Authored July 17, 2024

feat(python): Expose Arrow C interface directly on Polars (#17696)

Authored July 18, 2024

feat: Include file path option for NDJSON (#17681)

Authored July 17, 2024

fix: Use ETag for HTTP file cache invalidation (#17684)

Authored July 17, 2024

fix(rust): Fix type inference failure caused by double transpose (#17663)

Authored July 17, 2024

fix(python): Remove non-existing names from `__all__` (#17494)

Authored July 18, 2024

perf(python): Specify tune-cpu & add more CPU features (#17615)

Authored July 17, 2024

fix: Use bytemuck in slice reinterpret for Parquet ArrayChunks (#17700)

Authored July 18, 2024

test: Name tests so they actually run (#17690)

Authored July 17, 2024

fix: Propagate struct outer nullability eagerly (#17697)

Authored July 18, 2024

Python Polars 1.2.1 (#17704)

Authored July 18, 2024

fix(python): Address `read_database` issue with batched reads from Snowflake (#17688)

Authored July 17, 2024

docs(python): Fixed default name for `value_counts` methods based on normalize parameter (#17685)

Authored July 17, 2024

feat: Raise error instead of panic in unsupported serde (#17679)

Authored July 18, 2024

fix(python): Fix return type hint for LazyFrame `sink` methods (#17698)

Authored July 18, 2024

build(python): Pin `setuptools` to fix failing CI (#17695)

Authored July 18, 2024

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Top Contributors in py-1.2.1

ritchie46

nameexhaustion

ByteNybbler

5j9

ruihe774

coastalwhite

MarcoGorelli

ragyabraham

alexander-beedie

eitsupi

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Release Notes Published

🚀 Performance improvements

Specify tune-cpu & add more features (#17615)
Better GC and push_view for binviews (#17627)

✨ Enhancements

Raise error instead of panic in unsupported serde (#17679)
Expose Arrow C interface directly on Polars (#17696)
Include file path option for NDJSON (#17681)

🐞 Bug fixes

Use bytemuck in slice reinterpret for Parquet ArrayChunks (#17700)
Remove non-existing names from __all__ (#17494)
Fix return type hint for LazyFrame sink methods (#17698)
Propagate struct outer nullability eagerly (#17697)
Address read_database issue with batched reads from Snowflake (#17688)
Use ETag for HTTP file cache invalidation (#17684)

📖 Documentation

Fixed default name for value_counts methods based on normalize parameter (#17685)

📦 Build system

Pin setuptools to fix failing CI (#17695)

🛠️ Other improvements

Fix return type hint for LazyFrame sink methods (#17698)
Pin setuptools to fix failing CI (#17695)
Name tests so they actually run (#17690)
Add reduce ComputeNode in new streaming engine (#17389)

Thank you to all our contributors for making this release possible! @5j9, @ByteNybbler, @MarcoGorelli, @alexander-beedie, @coastalwhite, @diegoglozano, @eitsupi, @nameexhaustion, @orlp, @ragyabraham, @ritchie46 and @ruihe774