Published November 25, 2024
| Version py-1.15.0
Software
Open
pola-rs/polars: Python Polars 1.15.0
Authors/Creators
- Ritchie Vink
- Stijn de Gooijer1
- Alexander Beedie
- Marco Edward Gorelli2
- nameexhaustion
- Orson Peters3
- Weijie Guo4
- Gijs Burghoorn3
- J van Zundert
- Gert Hulselmans5
- Cory Grinstead
- Marshall
- chielP
- Itamar Turner-Trauring
- Lawrence Mitchell
- Matteo Santamaria6
- DaniΓ«l Heres7
- Josh Magarick
- Henry Harbeck
- deanm0000
- ibENPC
- Karl Genockey
- Moritz Wilksch8
- eitsupi
- Ion Koutsouris
- Jorge Leitao9
- Mick van Gelderen
- Liam Brannigan
- Petros Barbagiannis
- 1. @pola-rs
- 2. Quansight
- 3. Polars
- 4. @alibaba
- 5. @aertslab
- 6. University of California, Berkeley
- 7. @coralogix
- 8. @QuantCo
- 9. Munin Data ApS
Description
π Performance improvements
- Reduce the size of row encoding UTF-8 (#19911)
- Memoize duplicates in rolling-gb-dyn (#19939)
- More efficient row encoding for
pl.List(#19907) - Half the size of Booleans in row encoding (#19927)
- Rolling 'iter_lookbehind' breeze through duplicates (#19922)
- Initially trim leading and trailing filtered rows (#19850)
β¨ Enhancements
- Catch use of 'polars' in
to_stringfor non-Duration dtypes and raise an informative error (#19977) - Add AhoCorasick backed 'find_many' (#19952)
- Allow Python Enums as dtype inputs (#19926)
- Speed up starts_with for small prefixes (#19904)
- Auto-enable hive partitioning if hive_schema was given (#19902)
- Add
pl.concat_arrto concatenate columns into an Array column (#19881) - Support both "iso" and "iso:strict" format options for
dt.to_string(#19840) - Add rounding for Decimal type (#19760)
- Improved array arithmetic support (#19837)
π Bug fixes
- Fix Decimal type fill_null (#19981)
- Fix panic on schema merge for prefiltering (#19972)
- Fix lazy frame join expression (#19974)
- Fix
gather_everyforScalar(#19964) - Toggle 'fast_unique' on new_from_index (#19956)
- Parse uppercase config keys (#19852)
- Raise proper error message when too small interval is passed to datetime_range (#19955)
- Fix scalar object (#19940)
- Raise InvalidOperationError for invalid float to decimal casts (e.g. Inf, NaN) (#19938)
- Address indexing edge-case with
numpyarrays (#19895) - Fix panic with combination of hive and parquet prefiltering (#19905)
- Fix panic when joining with empty frame (debug only) (#19896)
- Fix incorrect result from inequality filter after join on LazyFrame (#19898)
- Misleading
ShapeErrorerror message on dataframe creation (#19901) - Fix panic with empty delta scan, or empty parquet scan with a provided schema (#19884)
- Ensure type object of inputs for cached any-value conversion functions are kept alive (#19866)
- Improve export from 2D Array dtype columns to PyTorch Tensors (
to_torch) and Jax Arrays (to_jax) (#19862) - Fix panic using
scan_parquet().with_row_index()with hive partitioning enabled (#19865) - Improve histogram bin logic (#18761)
- Raise informative error instead of panicking for list arithmetic on some invalid dtypes (#19841)
- Properly handle Zero-Field Structs in row encoding (#19846)
- Incorrect explode schema for
LazyFrame.explode()(#19860) - DataFrame
rows_by_keyreturning key tuples with elements in wrong order (#19486) - Ensure
Listelement truncation ellipses respectASCII*table formats (#19835)
π Documentation
- Remove duplicate sentence in
Series.bottom_kdocstring (#19947) - Complete parameters description and add an example for
clip()(#19875) - Fix some warnings during docs build (#19848)
π¦ Build system
- Use public windows runners in python release (#19982)
- Add windows-aarch64 to python binaries (#19966)
π οΈ Other improvements
- Minor non-breaking space (
) tweak for HTML rendering (#19864) - Implement nested row encoding / decoding (#19874)
- Switch back to PyO3 0.22 (#19851)
- Adjust flaky
with_columnstest (#19844) - Add proper tests for row encoding (#19843)
Thank you to all our contributors for making this release possible! @MarcoGorelli, @alexander-beedie, @barak1412, @coastalwhite, @etiennebacher, @ion-elgreco, @itamarst, @lukemanley, @mcrumiller, @mhogervo, @nameexhaustion, @orlp, @ritchie46, @stijnherfst and @stinodego
Files
pola-rs/polars-py-1.15.0.zip
Files
(5.3 MB)
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Additional details
Related works
- Is supplement to
- Software: https://github.com/pola-rs/polars/tree/py-1.15.0 (URL)