pola-rs/polars

CSV column name deduplication not robust against name clashes 4 days ago

bug good first issue python accepted P-medium A-io-csv

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`pl.datetime` needs a way to fail silently 24 days ago

bug good first issue python needs triage

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

Extend `strptime` functionality to parse Duration strings 25 days ago

help wanted enhancement accepted

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

implement Arrow2's odbc reader and writers 28 days ago

good first issue enhancement

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

ddof parameter on pl.corr is nonsensical about 1 month ago

good first issue enhancement accepted A-api P-low

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

scan_delta file skip predicate not working for bool dtype 3 months ago

good first issue python enhancement performance P-low A-io-parquet A-io-delta upstream issue

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`next()` on GroupBy raises `AttributeError` object has no attribute `_current_index` 4 months ago

bug good first issue python P-low

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

Dynamic string replacement fails when `POLARS_MAX_THREADS=1` 4 months ago

bug good first issue python accepted P-medium A-streaming A-dtype-string

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

Incorrect str.to_time for "%f" 5 months ago

bug good first issue python accepted

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

Tracking issue for missing methods in `arr` namespace 6 months ago

good first issue enhancement

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`describe` doesn't abide thousands separator for string columns 7 months ago

bug good first issue python P-low

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`struct.rename_fields` should have a `strict` parameter that is enabled by default. 7 months ago

AI Summary: The `Series.struct.rename_fields` and `Expr.struct.rename_fields` methods should be enhanced with a `strict` parameter. This parameter would enforce that the length of the provided `names` list exactly matches the number of fields in the struct, raising an error if they don't. For version 2.0, this `strict` behavior should be enabled by default.

Complexity: 2/5

good first issue enhancement

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`pl.format` panics if no expressions are given. 8 months ago

bug good first issue python P-medium A-formatting

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`pl.corr` fails to propagate nulls when using Spearman correlation with `propagate_nans=True` on pivoted columns 9 months ago

bug good first issue python accepted P-medium

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`list.sample` fraction allows floats between 1.0 and 2.0 9 months ago

bug good first issue python accepted P-low

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`list.slice` does not error on incorrect length parameters, or list literals 9 months ago

bug good first issue python accepted P-medium

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

Support HDF5 reading/writing (with optional dependencies) 9 months ago

help wanted python enhancement accepted A-io

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

.list.product 9 months ago

good first issue enhancement accepted

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

write_csv's decimal_comma ignores Decimal columns 10 months ago

bug good first issue rust P-medium

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

Add TypeGuard methods to DataType for is_struct, is_list, and is_array 11 months ago

good first issue enhancement

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

`unique` and `n_unique` not implemented for `arr` columns 11 months ago

good first issue python enhancement accepted

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

Add add_filename to pl.read_csv (and read operations others) 11 months ago

good first issue enhancement

pola-rs/polars

39.0K

Extremely fast Query Engine for DataFrames, written in Rust

Rust

#arrow#dataframe#dataframe-library#dataframes#out-of-core#polars#python#rust

Open Issues Need Help