pola-rs/polars py-0.15.15 on GitHub

✨ Enhancements

ensure ooc sort works ooc with all-constant values (#6235)
The 1 billion row sort (#6156)
optionally treat missing UTF8 values as the empty string at CSV parse-time (#6203)
check file target is not an existing directory (#6187)
support -ve indexing for DataFrame head and tail methods (#6173)
Implement DataFrame.unique(keep="none") (#6169)
support use of explicit Struct dtypes on DataFrame/Series init (#6145)

Add list inner dtype when printing Series (#6233)
strptime now respects pl.Datetime's time_unit (#6231)
fix when then otherwise with arity and aggregation… (#6224)
collect now uses the storage_options given to scan_parquet (#6223)
set_sorted keep schema (#6222)
pass name to value counts in aggregation (#6221)
don't set fast_explode on list of structs (#6220)
address a frame init/construction error, and expose infer_schema_length to frame init (#6210)
explode of empty nullable list (#6190)
fix oob arr.take (#6189)
Make with_columns in with_columns_kwargs mode compatible with more data types (#6126)
Update docstring with_columns to reflect a new dataframe is being returned (#6122)
fix empty streaming joins (#6149)
fix streaming joins where the join order has been … (#6143)
write tz-aware datetimes to csv (#6135)
add null behavior for oob indices (#6133)

Create DataFrame from schema (#6225)
don't set aggregated flag on null propagated aggregation. (#6191)
undo cargo.toml change (#6219)
Improve drop_nulls docstrings (#6127)
Clarify docstrings for closed argument (#6198)
minor docs and typing updates (plus additional test coverage for related areas) (#6182)
explain n_field_strategy (#6158)