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

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Polars py-0.15.13

Polars: py-0.15.13 Release

Release date:

January 6, 2023

Previous version:

py-0.15.11 (released January 3, 2023)

Magnitude:

3,149 Diff Delta

Contributors:

5 total committers

Data confidence:

Commits:

35 Commits in this Release

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

feat(python): Improve iterating over `GroupBy` (#6051)

Authored January 5, 2023

feat(python): much faster lazy type-checks (#6064)

Authored January 5, 2023

test(python): Refactor pivot tests (#6012)

Authored January 3, 2023

chore(python): Fix flake8-pytest-style errors in tests. (#6031)

Authored January 4, 2023

feat(python): support array-expansion of scalars on frame init from dict (#6034)

Authored January 4, 2023

fix(python): allow mixed field order and availability in apply that r… (#6041)

Authored January 4, 2023

fix(rust, python): ndjson struct inference (#6049)

Authored January 5, 2023

chore(python): Use ruff instead of isort, flake8 and pyupgrade (#5916)

Authored January 3, 2023

fix(python): Fix `from_epoch` function signature (#6024)

Authored January 4, 2023

fix(python): improve handling of dict-type "columns" param on frame-init (#6045)

Authored January 5, 2023

docs(python): update `read_sql` and `row` docstrings (#6028)

Authored January 4, 2023

chore(python): Properly deprecate `groupby.pivot` (#6000)

Authored January 3, 2023

chore(python): Fix SIM105 issues. (#6042)

Authored January 4, 2023

fix(rust, python): deal with unnest schema expansion in projection pd (#6063)

Authored January 5, 2023

fix(python): tweaked property/accessor behaviour (#6021)

Authored January 4, 2023

fix(rust, python): deal with empty structs (#6039)

Authored January 4, 2023

fix(rust, python): fix aggregation that filters out all data (#6036)

Authored January 4, 2023

fix(rust, python): block streaming on literal series/range (#6058)

Authored January 5, 2023

fix(python): Validate `estimated_size` parameter (#6018)

Authored January 3, 2023

fix(rust, python): fix diff overflow (#6033)

Authored January 4, 2023

fix(rust, python): correct output dtype for cummin/cumsum/cummax (#6062)

Authored January 5, 2023

fix(python): fix stringcache. latest refactor introduced a hashing error (#6056)

Authored January 5, 2023

per(rust, python): use global string cache for rev cat (#6067)

Authored January 5, 2023

fix(rust, python): keep name when sorting categorical in lexial order (#6029)

Authored January 4, 2023

chore(python): Remove trailing spaces in glimpse output (#6037)

Authored January 4, 2023

fix(rust, python): properly set null anyvalue if categorical is neste… (#6025)

Authored January 4, 2023

docs(python): suggest forward fill in cumsum/cummax (#6061)

Authored January 5, 2023

feat(rust, python): improve error message when writing nested data to… (#6040)

Authored January 4, 2023

chore(python): Remove unnecessary noqa's (#6035)

Authored January 4, 2023

fix(python): Fix typing for `DataFrame.select` (#6047)

Authored January 5, 2023

chore(python): Update py-polars/Cargo.lock (#6013)

Authored January 3, 2023

fix(rust, python): keep column names in is_null/is_not_null (#6032)

Authored January 4, 2023

fix(python): bound complex type from 3.8 to 3.11 (#6071)

Authored January 5, 2023

chore(python): Enable the `isort`-style import autofix via `ruff` (#6020)

Authored January 3, 2023

python polars 0.15.13 (#6068)

Authored January 6, 2023

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Top Contributors in py-0.15.13

stinodego

ritchie46

alexander-beedie

ghuls

universalmind303

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Release Notes Published

✨ Enhancements

Improve iterating over GroupBy (#6051)
much faster lazy type-checks (#6064)
support array-expansion of scalars on frame init from dict (#6034)
improve error message when writing nested data to… (#6040)

🐞 Bug fixes

bound complex type from 3.8 to 3.11 (#6071)
deal with unnest schema expansion in projection pd (#6063)
correct output dtype for cummin/cumsum/cummax (#6062)
block streaming on literal series/range (#6058)
improve handling of dict-type "columns" param on frame-init (#6045)
Fix typing for DataFrame.select (#6047)
ndjson struct inference (#6049)
fix stringcache. latest refactor introduced a hashing error (#6056)
allow mixed field order and availability in apply that r… (#6041)
deal with empty structs (#6039)
fix aggregation that filters out all data (#6036)
fix diff overflow (#6033)
keep column names in is_null/is_not_null (#6032)
keep name when sorting categorical in lexial order (#6029)
tweaked property/accessor behaviour (#6021)
properly set null anyvalue if categorical is neste… (#6025)
Fix from_epoch function signature (#6024)
Validate estimated_size parameter (#6018)

🛠️ Other improvements

suggest forward fill in cumsum/cummax (#6061)
Fix SIM105 issues. (#6042)
Remove trailing spaces in glimpse output (#6037)
Remove unnecessary noqa's (#6035)
Fix flake8-pytest-style errors in tests. (#6031)
update read_sql and row docstrings (#6028)
Enable the isort-style import autofix via ruff (#6020)
Update py-polars/Cargo.lock (#6013)
Refactor pivot tests (#6012)
Use ruff instead of isort, flake8 and pyupgrade (#5916)
Properly deprecate groupby.pivot (#6000)

Thank you to all our contributors for making this release possible! @alexander-beedie, @ghuls, @ritchie46, @stinodego and @universalmind303