Trait FromPyArrow 

pub trait FromPyArrow: Sized {
    const INPUT_TYPE: PyStaticExpr = _;

    // Required method
    fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>;
}

Trait for converting Python objects to arrow-rs types.

Provided Associated Constants

const INPUT_TYPE: PyStaticExpr = _

The Python type this conversion accepts, as a type hint.

Used by [FromPyObject::INPUT_TYPE] on PyArrowType so that a stub generator can write pyarrow.Array where it would otherwise write _typeshed.Incomplete.

This names pyarrow classes only. Every conversion here also accepts any object implementing the relevant PyCapsule interface method, which is duck-typed and has no canonical Python type to point at — neither pyarrow nor typeshed defines one. The hint is therefore narrower than what is accepted at runtime. A binding that wants to advertise the wider protocol can declare its own Protocol and carry it on a newtype around the arrow-rs type.

Required Methods

fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>

Convert a Python object to an arrow-rs type.

Takes a GIL-bound value from Python and returns a result with the arrow-rs type.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl FromPyArrow for ArrayData

const INPUT_TYPE: PyStaticExpr

fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>

impl FromPyArrow for ArrowArrayStreamReader

Supports conversion from pyarrow.RecordBatchReader to [ArrowArrayStreamReader].

const INPUT_TYPE: PyStaticExpr = ARRAY_STREAM_INPUT_TYPE

fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>

impl FromPyArrow for DataType

const INPUT_TYPE: PyStaticExpr

fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>

impl FromPyArrow for Field

const INPUT_TYPE: PyStaticExpr

fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>

impl FromPyArrow for RecordBatch

const INPUT_TYPE: PyStaticExpr

fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>

impl FromPyArrow for Schema

const INPUT_TYPE: PyStaticExpr

fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>

impl<T: FromPyArrow> FromPyArrow for Vec<T>

const INPUT_TYPE: PyStaticExpr

fn from_pyarrow_bound(value: &Bound<'_, PyAny>) -> PyResult<Self>

Implementors

impl FromPyArrow for Table

Convert a pyarrow.Table (or any other ArrowArrayStream compliant object) into Table

const INPUT_TYPE: PyStaticExpr = ARRAY_STREAM_INPUT_TYPE