polars-source-utils
Utilities for inspecting and rewriting source paths inside binary Polars
LazyFrame plans.
from polars_source_utils import list_source_paths, replace_source_paths
paths = list_source_paths("data/node.plbin")
changed = replace_source_paths("data/node.plbin", {paths[0]: "/new/data.parquet"})
The functions are designed for workspace persistence flows that need to rebase absolute scan paths after moving a workspace folder. They do not collect the plan or rewrite underlying data files.
Plan traversal is exhaustive over Polars 1.44.1. Rewrites are serialized to a same-directory temporary file and atomically replace the original only after a successful flush and sync, so a serialization or persistence failure preserves the existing plan.
See the package architecture for the ownership boundary.
Development
uv sync
uv run maturin develop --release --locked
uv run pytest -q
1 maintainer
Metadata
1 maintainer
Release files for polars-source-utils 0.6.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| polars_source_utils-0.6.0.tar.gz | 35.0 kB | With provenance | Details for polars_source_utils-0.6.0.tar.gz |
Built distributions (wheels)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| polars_source_utils-0.6.0-cp314-cp314-win_amd64.whl | CPython 3.14 | CPython 3.14 | Windows x86-64 | Details for polars_source_utils-0.6.0-cp314-cp314-win_amd64.whl |
| polars_source_utils-0.6.0-cp314-cp314-manylinux_2_28_x86_64.whl | CPython 3.14 | CPython 3.14 | Linux glibc 2.28+ x86-64 | Details for polars_source_utils-0.6.0-cp314-cp314-manylinux_2_28_x86_64.whl |
| polars_source_utils-0.6.0-cp314-cp314-macosx_11_0_arm64.whl | CPython 3.14 | CPython 3.14 | macOS 11.0+ ARM64 | Details for polars_source_utils-0.6.0-cp314-cp314-macosx_11_0_arm64.whl |
Total release size: 35.4 MB
Release files / polars_source_utils-0.6.0.tar.gz
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