Release Python Polars 0.16.1 · pola-rs/polars

🏆 Highlights

Formalize list aggregation difference between groupbys, selection and window functions (#6487)
automagically upconvert with_columns kwarg expressions with multiple output names to struct; extend **named_kwargs support to select (#6497)

error on string <-> date cmp (#6498)
Formalize list aggregation difference between groupbys, selection and window functions (#6487)
show where error messages originated (#6482)
Remove deprecated paths from Series.__getitem__ (#6048)
change behaviour of named rows (#6302)
Remove deprecated read/write_json arguments (#5990)
make schema, schema_overrides, and orient consistent on all user-facing interfaces (#6387)
Groupby iteration now returns tuples of (name, data) (#6350)
Remove Groupby.pivot (#6016)
Remove deprecated argument aliases (#5993)
Change Series.shuffle default behaviour (#5991)
Change Expr.is_between default behaviour (#5985)
Restrict certain function parameters to be keyword-only (#6464)

let cast_time_zone accept None (#6539)
automagically upconvert with_columns kwarg expressions with multiple output names to struct; extend **named_kwargs support to select (#6497)
add some missing type annotation in series dispatch methods (#6523)
better errors in get_ptr and a probability on a boolean… (#6522)
add utc parameter to strptime (#6496)
add meta 'has_multiple_outputs', 'is_regex_projec… (#6500)
error on string <-> date cmp (#6498)
~30% faster iter_rows(named=True) and to_dicts(), if pyarrow available (#6493)
show where error messages originated (#6482)
Remove deprecated paths from Series.__getitem__ (#6048)
change behaviour of named rows (#6302)
Remove deprecated read/write_json arguments (#5990)
Groupby iteration now returns tuples of (name, data) (#6350)
Remove Groupby.pivot (#6016)
Remove deprecated argument aliases (#5993)
Change Series.shuffle default behaviour (#5991)
Change Expr.is_between default behaviour (#5985)
Restrict certain function parameters to be keyword-only (#6464)

implement ser/de for BinaryChunked (#6543)
on frame-init from generator, initial chunk_size cannot be smaller than infer_schema_length (#6541)
raise if tz_localize called on UTC-aware (#6526)
make concat_list group aware (#6527)
error on invalid expanding expression (#6521)
create from dicts directly as struct categorical (#6520)
fix oob in arr.get by expressions (#6519)
fix cse schema (#6518)
panic when max_len -1 is reached (#6494)
Formalize list aggregation difference between groupbys, selection and window functions (#6487)
fix(rust, python) validate tz in with_time_zone (#6417)

Remove verify_series_and_expr_api util (#6524)
Disable some tests for Windows (#6532)
Remove unnecessary brackets in doc examples (#6332)
Enable some tests for Windows (#6511)
Fix test issue with tmp directory (#6508)
Fix some deprecation warnings (#6495)
added all missing examples for temporal expressions (#6488)
Utilize pytest-xdist for faster unittests (#6483)
test(python) I/O test improvements (#6475)
make schema, schema_overrides, and orient consistent on all user-facing interfaces (#6387)
improved error message from Expr on incorrect usage in boolean context (#6473)