Published November 17, 2023
| Version py-0.19.14
Software
Open
pola-rs/polars: Python Polars 0.19.14
Authors/Creators
- Ritchie Vink
- Stijn de Gooijer1
- Alexander Beedie
- Marco Edward Gorelli2
- J van Zundert
- Gert Hulselmans3
- Weijie Guo4
- universalmind303
- Orson Peters
- Marshall5
- Matteo Santamaria6
- Daniël Heres7
- Josh Magarick
- ibENPC
- nameexhaustion
- Moritz Wilksch8
- chielP
- Jorge Leitao9
- Jonas Haag10
- Marc van Heerden
- Oliver Borchert10
- Colin Jermain
- Joshua Peek
- Ryan Russell
- Chris Pryer11
- Adrián Gallego Castellanos12
- Jeremy Goh
- Liam Brannigan
- cmdlineluser
- 1. @pola-rs
- 2. Quansight
- 3. @aertslab
- 4. @alibaba
- 5. The Rockefeller University
- 6. University of California, Berkeley
- 7. @coralogix
- 8. @QuantCo
- 9. Munin Data ApS
- 10. @Quantco
- 11. @twin-labs
- 12. Universidad Carlos III(student)
Description
🏆 Highlights
- Support Python 3.12 (#12094)
- make 1D numpy to polars conversion zero-copy for numeric data (#12403)
⚠️ Deprecations
- Rename DataFrame column index methods (#12542)
- Rename
Series.set_at_idxtoscatter(#12540) - Deprecate
Series.view(#12539) - Rename cumulative functions
cumsum -> cum_sumand similar (#12513) - Rename
taketogather(#12528) - Add dedicated horizontal aggregation methods to
DataFrame(#12492) - Rename
take_everytogather_every(#12531) - Deprecate
Series.inner_dtypeproperty (#12494) - Deprecate
parse_intin favor ofto_integer(#12464) - Deprecate DataType method
is_not(#12458) - Deprecate Series methods
is_booleanandis_utf8(#12457) - Add
DataType.is_integerand other dtype groups (#12200)
🚀 Performance improvements
- speed up parquet download of streaming engine (#12544)
- speed up cov/corr with SIMD + strength-reduction
~3x 0.19.13/ ~2x numpy(#12471) - apply predicates and statistics of parquet files in streaming mode (#12439)
- use online algorithm for cov/corr
~2x(#12412) - make 1D numpy to polars conversion zero-copy for numeric data (#12403)
✨ Enhancements
- Add dedicated horizontal aggregation methods to
DataFrame(#12492) - support http scan_parquet (#12517)
- Add support for UTF-8 BOM option in
write_csvandsink_csv(#12253) - remove lexical (replace with atoi_simd, ryu, and itao). (#12512)
- more changes for versioned plugins (#12504)
- plugins add version and context (#12433)
- Add
DataType.is_integerand other dtype groups (#12200) - include i128 in more primitive functions (#12413)
- write rolling functions as private expressions. (#12379)
🐞 Bug fixes
- fix incorrect ternary agg states (#12538)
- fix and improve ternary evaluation on groups (#12529)
- saturating sub in debug msg (#12525)
- fix panic when writing
Decimaltype to parquet (#12532) - pre-fefetch struct columns in async projection pd (#12514)
- rechunk cross join output in streaming (#12511)
- Ensure behaviour of
Seriescomparison withtimedeltamatches that of other types (#12497) - fix as_list logical types (#12507)
- fix streaming cross join on empty df (#12491)
- dont overflow when calculating date range over very long periods (#12479)
- Allow append/zip_with/extend on local categoricals (#12369)
- Do not panic if time is invalid (#12466)
- ensure explicit "return_dtype" is respected by
map_dicts(#12436) - empty csv no-raise (#12434)
- Fix
scan_csverror type (#12355) - binary operations in aggregation context on literals (#12430)
- raw HTML output alignment was incorrect for dtype in header (#12422)
- update groups state after binary aggregation (#12415)
- Remove extra
\nwhen reading file-like object wi… (#12333) - Issue correct
PolarsInefficientMapWarningfor lshift/rshift operations (#12385) - revert ternary special broadcast, ensure broadcast is always to max height (#12395)
- ensure first/last return null if empty (#12401)
🛠️ Other improvements
- fix and improve ternary evaluation on groups (#12529)
- Add
polars-dsto list of community plugins (#12527) - Future-proof consortium standard test (#12524)
- add schema test (#12523)
- remove lexical (replace with atoi_simd, ryu, and itao). (#12512)
- add test for previous commit (#12510)
- Update
polars-hashreference (#12505) - Add note on hash stability and mention
polars-hash(#12496) - Support Python 3.12 (#12094)
- Improved
import polarstiming test; now much more consistent/reliable (#12478) - Use
.with_columns()in all.listnamespace examples (#12475) - update rustc (#12468)
- Fix docs trigger (#12449)
- Update for new maturin release (#12437)
- Remove 'experimental' tag for auto-structify setting (#12435)
- make "DataFrame" and "Series" case more consistent across docs/comments/errors (#12428)
- dprint/markdown link checker minor updates (#12409)
- Use
manylinux_2_17for buildingx86-64wheel (#12408) - Use manylinux 2.24 instead of 2.28 for compatibility reasons (#12397)
- use with_columns in is_in example, and fix some bullet points not rendering (#12383)
Thank you to all our contributors for making this release possible! @MarcoGorelli, @abstractqqq, @alexander-beedie, @c-peters, @cmdlineluser, @hirohira9119, @ion-elgreco, @jerome3o, @nameexhaustion, @reswqa, @ritchie46, @stinodego and @uchiiii
Files
pola-rs/polars-py-0.19.14.zip
Files
(3.8 MB)
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Additional details
Related works
- Is supplement to
- Software: https://github.com/pola-rs/polars/tree/py-0.19.14 (URL)