narwhals-dev

narwhals-dev/narwhals

Lightweight and extensible compatibility layer between dataframe libraries!

4 good first / help-wanted issues · Python · last activity Jul 4, 2026

1.7K stars 205 forks 1.7K watchers Python MIT License
cudf dask duckdb ibis pandas polars pyarrow pyspark
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4 Open Issues Need Help Last updated: Jul 4, 2026

Open Issues Need Help

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tests: Move from `assert_equal_data` to `assert_frame_equal` about 1 month ago
help wanted tests
narwhals-dev/narwhals
1.7K

Lightweight and extensible compatibility layer between dataframe libraries!

Python
#cudf#dask#duckdb#ibis#pandas#polars#pyarrow#pyspark
[Enh]: Support `datafusion-python` about 2 months ago
enhancement help wanted
narwhals-dev/narwhals
1.7K

Lightweight and extensible compatibility layer between dataframe libraries!

Python
#cudf#dask#duckdb#ibis#pandas#polars#pyarrow#pyspark
docs/tests: translate "The Polars Cookbook" to Narwhals about 1 year ago

AI Summary: This GitHub issue proposes translating code snippets from "The Polars Cookbook" to Narwhals. The goal is to leverage these translated examples as valuable test cases or documentation for the Narwhals project, inviting contributors to investigate this task.

Complexity: 4/5
documentation help wanted tests
narwhals-dev/narwhals
1.7K

Lightweight and extensible compatibility layer between dataframe libraries!

Python
#cudf#dask#duckdb#ibis#pandas#polars#pyarrow#pyspark
test: ideas to speed up test suite over 1 year ago

AI Summary: Investigate and optimize the slow test suite for the Narwhals project. This involves identifying performance bottlenecks (e.g., I/O, computation, testing framework inefficiencies) and implementing solutions to improve the speed of the test suite execution.

Complexity: 4/5
help wanted ci tests
narwhals-dev/narwhals
1.7K

Lightweight and extensible compatibility layer between dataframe libraries!

Python
#cudf#dask#duckdb#ibis#pandas#polars#pyarrow#pyspark