Add a pandera CLI: validate, infer, and generate commands#2402
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cosmicBboy wants to merge 6 commits into
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Add a pandera CLI: validate, infer, and generate commands#2402cosmicBboy wants to merge 6 commits into
cosmicBboy wants to merge 6 commits into
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Signed-off-by: cosmicBboy <niels.bantilan@gmail.com>
Signed-off-by: cosmicBboy <niels.bantilan@gmail.com>
Signed-off-by: cosmicBboy <niels.bantilan@gmail.com>
Signed-off-by: cosmicBboy <niels.bantilan@gmail.com>
Signed-off-by: cosmicBboy <niels.bantilan@gmail.com>
Add a --use-narwhals flag to pandera validate that enables the Narwhals-powered validation backend (set_config(use_narwhals_backend=True)) for polars, ibis, and pyspark.sql schemas. The flag errors out for pandas-API schemas and when narwhals is not installed, and is the per-invocation equivalent of PANDERA_USE_NARWHALS_BACKEND=True. Also extend GeoDataFrameSchema.to_script with script_type to match the extended pandas container signature after rebasing onto main. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Signed-off-by: cosmicBboy <niels.bantilan@gmail.com>
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What this PR does
Adds a Typer-based command-line interface to pandera (installed via the
pandera[cli]extra), exposed aspandera/python -m pandera:pandera validate— validate an on-disk dataset (CSV, Parquet, JSON, Feather, ...) against a serialized schema (YAML/JSON), with Rich-rendered pass/fail reports and non-zero exit codes on failure. Supports pandas, modin, dask, pyspark.pandas, pyspark.sql, polars, and ibis backends, inferred from the schema file or set explicitly with--backend.pandera infer— infer a schema from a data file and write it as YAML, JSON, or a Python module (--format py, schema- or model-style via--script-type). Schema inference and statistics support has been extended to polars, pyspark.sql, ibis, and xarray.pandera generate— generate synthetic data from a schema using the strategies machinery.Narwhals backend support
pandera validategains a--use-narwhalsflag that validates polars, ibis, and pyspark.sql schemas through the Narwhals-powered validation backend (the per-invocation equivalent ofPANDERA_USE_NARWHALS_BACKEND=True). The flag exits with a clear error for pandas-API schemas and whennarwhalsis not installed.Docs
docs/source/cli.rst, auto-generated command docs) and copy-paste CLI guide (docs/source/cli_guide.md), including a Narwhals section.narwhals_backend.mddocuments the CLI flag; schema inference and data synthesis docs updated.Tests
tests/cli/covers command behavior and schema-format × data-format × backend matrices (PySpark combos opt-in viaPANDERA_RUN_SPARK_CLI=1), plus newtest_cli_narwhals.pycovering--use-narwhalssuccess/failure paths, the env-var path, ibis, and the pandas-API rejection. Full CLI suite: 103 passed, 9 skipped locally.Notes for reviewers
GeoDataFrameSchema.to_scriptwas extended withscript_typeto stay compatible with the extended pandas container signature.🤖 Generated with Claude Code