Polars plugin for reading Lance datasets into Polars dataframes.

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  • License Expression: MIT
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  • Author: Jorrit Sandbrink
  • Tags polars , lance , arrow
  • Requires: Python >=3.10
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Project description

polars-lance

Polars plugin for reading Lance datasets into Polars dataframes.

Installation

pip install polars-lance

Usage

from polars_lance import scan_lance

lf = scan_lance("data/example.lance")
df = lf.collect()

Cloud storage

Pass storage_options to access Lance datasets stored in AWS S3, Azure Blob Storage, or Google Cloud Storage.

from polars_lance import scan_lance

lf = scan_lance(
    "s3://my-bucket/example.lance",
    storage_options={
        "aws_access_key_id": "AKIAIOSFODNN7EXAMPLE",
        "aws_secret_access_key": "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY",
        "aws_region": "us-east-1",
    },
)
df = lf.collect()

Cloud storage IO is powered by the object_store Rust crate. These are the supported schemes and options:

Project details

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  • License Expression: MIT
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  • Author: Jorrit Sandbrink
  • Tags polars , lance , arrow
  • Requires: Python >=3.10
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