Function reference

Data resource functions

Functions to work with and manage data resources found within a data package.

join_staging	Join DataFrames from `staging/` into a single (Polars) DataFrame.
read_staging	Read all staging file(s) into a list of (Polars) DataFrames.
write_resource_data	Check and write the resource data into a file.
DataResourceError	Error listing issues in a data resource.

Dataclasses to help create properties at the package level.

ContributorProperties	The people or organizations who contributed to this data package.
LicenseProperties	The license(s) under which the package or resource is provided.
SproutProperties	Properties for a data package.
SourceProperties	The raw sources for this data package.

Dataclasses to help create properties at the resource level.

ConstraintsProperties	A dataclass that expresses constraints for validating field values.
FieldProperties	A field in a table schema.
ReferenceProperties	The destination part of a foreign key.
ResourceProperties	A data resource.
TableSchemaForeignKeyProperties	A foreign key in a table schema.
TableSchemaProperties	A table schema for a data resource.

Functions used to work with properties.

check_data	Checks that the DataFrame matches the requirements in the properties.
read_properties	Read in the properties from the `datapackage.json` file.
write_properties	Write the `properties` to the `datapackage.json` file.

Functions to support working with data packages and running code within Seedcase Sprout.

example_package_properties	Generate an example package properties object.
example_resource_properties	An example resource properties object.
example_resource_properties_all_types	An example resource properties with all Data Package types.
example_data	An example Polars data frame.
example_data_all_types	An example Polars data frame with all Data Package types.

Functions available via the command line interface.

extract_metadata	Extract metadata from a Parquet file.
init_metadata	Create a Python script with empty metadata fields.