Polars: py-1.3.0 Release

🚀 Performance improvements

• Ensure metadata flags are maintained on vertical parallelization (#17804)
• Ensure only nodes that are not changed are cached in collapse optimizer (#17791)
• Use bitflags for OptState (#17788)
• Remove async directory auto-detection (#17779)
• Fix accidental quadratic horizontal concat (#17783)
• Batch parquet integer decoding (#17734)
• Use mmap-ed memory if possible in Parquet reader (#17725)
• Use bitflags for function options (#17723)
• Also set target features and tune cpu for CC (#17716)
• Introduce MemReader to file buffer in Parquet reader (#17712)

✨ Enhancements

• Expose binary_elementwise_into_string_amortized for plugin authors, recommend apply_into_string_amortized instead of apply_to_buffer (#17903)
• Expose allocator to capsule (#17817)
• Decompress in CSV / NDJSON scan (#17841)
• Ensure unique names in HConcat (#17884)
• Support authentication with HuggingFace login (#17881)
• Enable collection with gpu engine (#17550)
• Support "BY NAME" qualifier for SQL "INTERSECT" and "EXCEPT" set ops (#17835)
• Write data at table level in write_excel (#17757)
• Support PyCapsule Interface in DataFrame & Series constructors (#17693)
• Implement Arrow PyCapsule Interface for Series/DataFrame export (#17676)
• Raise informative error instead of panicking when passing invalid directives to to_string for Date dtype (#17670)
• Implement forward/backward fill for all types (#17861)
• Implement is_in operation on decimal type (#17832)
• Optimise read_excel when using "calamine" engine with the latest fastexcel (#17735)
• Support hf:// in read_(csv|ipc|ndjson) functions (#17785)
• Allow literals in sort (#17780)
• Expose 'strict' argument to 'is_in' (#17776)
• Release the GIL in collect_schema (#17761)
• Cloud support for NDJSON (#17717)
• Support API token for scanning hf:// (#17682)

🐞 Bug fixes

• Scanning '%' from cloud (#17890)
• Raise suitable error when invalid column passed to get_column_index (#17868)
• Respect glob=False for cloud reads (#17860)
• Properly write nest-nulled values in Parquet (#17845)
• Improve default write_excel int/float format when using a dark "table_style" (#17869)
• Fix from_arrow for struct type (#17839)
• Fix bool/string usage of "column_totals" parameter in write_excel (#17846)
• Infer decimal scales on mixed scale input (#17840)
• Don't ignore timezones in list of dicts constructor (#14211)
• Raise on unsupported fill strategy dtype (#17837)
• Properly write nested NullArray in Parquet (#17807)
• Check input type on list.to_struct (#17834)
• Fix right join schema (#17833)
• Simultaneous usage of named_expr and schema in pl.struct (#17768)
• Fix projection pusdhown of literals without names (#17778)
• Don't expand HTTP paths (#17774)
• Check funtion input len at expansion (#17763)
• Don't panic in invalid agg_groups (#17762)
• Raise empty struct (#17736)
• Fix GC logic in write_ipc (#17752)
• Panic in pl.concat_list and list.concat on empty inputs (#17742)
• Fix out nullability for structs coming from arrow (#17738)
• Percent encode for Hugging Face paths (#17718)

📖 Documentation

• Updating the join example input for rust for consistency with python example (#17898)
• Improve filter documentation (#17755)
• Reword "how" param docstring entry for 'semi' and 'anti' join types for clarity (#17843)
• Mention read_* functions in Hugging Face section in user guide (#17799)
• Show return type for Series attributes in API reference (#17759)
• Add function with multiple arguments example to Expr.map_batches (#17789)
• Add Hugging Face section to user guide (#17721)

📦 Build system

• Update Rust toolchain to nightly-2024-07-26 (#17891)
• Correctly reference released package in optional dependencies (#17691)

🛠️ Other improvements

• On Python release, trigger docs build after API reference build (#17904)
• Set uv pip install to verbose (#17901)
• Fix broken typos command in make pre-commit for py-polars folder (#17897)
• Remove HybridRLE iter / batch nested parquet decoding (#17889)
• Add version field for python IR (#17876)
• Pass through missing rolling and stringfunction information in pyir (#17702)
• Make better use of typos configuration features (#17800)
• Better deprecate message for _import_from_c (#17753)
• Rename Unit to Plain in Parquet reader (#17751)
• Unpin setuptools (#17726)
• Update CODEOWNERS (#17707)

Thank you to all our contributors for making this release possible! @MarcoGorelli, @Object905, @SandroCasagrande, @alexander-beedie, @atigbadr, @coastalwhite, @deanm0000, @delsner, @dependabot, @dependabot[bot], @henryharbeck, @implicit-apparatus, @jparag, @knl, @kylebarron, @lukapeschke, @mcrumiller, @nameexhaustion, @orlp, @ritchie46, @ruihe774, @stinodego, @szepeviktor and @wence-