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Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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Polars py-0.19.1

Polars: py-0.19.1 Release

Release date:
September 1, 2023
Previous version:
py-0.19.0 (released August 30, 2023)
Magnitude:
3,889 Diff Delta
Contributors:
5 total committers
Data confidence:
Commits:
17 impacting commits

17 Commits in this Release

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

feat(rust, python): Supports is_last operation (#10760)
Authored August 31, 2023
fix: var/std behavior around few elements (#10828)
Authored August 31, 2023
refactor: Refactor `range` related functions (#10830)
Authored August 31, 2023
fix: Improve bound checks on temporal ranges (#10837)
Authored August 31, 2023
feat(python): add `binary`, `boolean`, `categorical`, `date`, `object`, and `time` selectors (#10806)
Authored August 31, 2023
fix: empty product returns identity (#10842)
Authored September 1, 2023
docs(python): map-related docstring updates (#10779)
Authored August 31, 2023
fix(python): behaviour of `reversed(df)` (#10823)
Authored August 31, 2023
fix(rust, python): Reading an only-header csv file in streaming mode should not panic (#10810)
Authored August 31, 2023
feat(python): Add custom error for `allow_copy=False` (#10822)
Authored August 31, 2023
fix(rust, python): fix equality of quantile aggregation node (#10816)
Authored August 31, 2023
fix(rust, python): never panic in hash/equality doesn't hold in cse (#10836)
Authored August 31, 2023
fix(rust, python): divide by zero error when reading empty csv in streaming mode (#10819)
Authored August 31, 2023
feat(python): minor typing improvement for DataFrame.__iter__ (#10825)
Authored August 31, 2023
test(python): Move sink tests to streaming module (#10821)
Authored August 31, 2023
docs(rust): fix the apply_multiples example in polars lazy cookbook (#10809)
Authored August 31, 2023
python polars 0.19.1 (#10817)
Authored September 1, 2023

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Top Contributors in py-0.19.1

stinodego
alexander-beedie
orlp
reswqa
ritchie46

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Release Notes Published

πŸ’₯ Breaking changes

  • empty product returns identity and product ignores nulls (#10842)

✨ Enhancements

  • add binary, boolean, categorical, date, object, and time selectors (#10806)
  • Supports is_last operation (#10760)
  • minor typing improvement for DataFrame.__iter__ (#10825)
  • Add custom error for allow_copy=False (#10822)

🐞 Bug fixes

  • empty product returns identity (#10842)
  • never panic in hash/equality doesn't hold in cse (#10836)
  • Improve bound checks on temporal ranges (#10837)
  • var/std behavior around few elements (#10828)
  • Fix divided by zero error when read empty csv in streaming mode (#10819)
  • behaviour of reversed(df) (#10823)
  • fix equality of quantile aggregation node (#10816)
  • Reading an only-header csv file in streaming mode should not panic (#10810)

πŸ› οΈ Other improvements

  • Refactor range related functions (#10830)
  • map-related docstring updates (#10779)
  • Move sink tests to streaming module (#10821)

Thank you to all our contributors for making this release possible! @alexander-beedie, @orlp, @reswqa, @ritchie46 and @stinodego

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