Struct PyDataType 

pub struct PyDataType(/* private fields */);

A Python-facing wrapper around DataType.

Implementations

impl PyDataType

pub fn new(data_type: DataType) -> Self

Construct a new PyDataType around a DataType.

pub fn from_arrow_pycapsule(capsule: &Bound<'_, PyCapsule>) -> PyResult<Self>

Create from a raw Arrow C Schema capsule

pub fn into_inner(self) -> DataType

Consume this and return its inner part.

pub fn to_arro3<'py>(&'py self, py: Python<'py>) -> PyResult<Bound<'py, PyAny>>

Export this to a Python arro3.core.DataType.

pub fn into_arro3(self, py: Python<'_>) -> PyResult<Bound<'_, PyAny>>

Export this to a Python arro3.core.DataType.

pub fn to_nanoarrow<'py>( &'py self, py: Python<'py>, ) -> PyResult<Bound<'py, PyAny>>

Export this to a Python nanoarrow.Schema.

pub fn into_pyarrow(self, py: Python<'_>) -> PyResult<Bound<'_, PyAny>>

Export to a pyarrow.DataType

Requires pyarrow >=14

Trait Implementations

impl AsRef<DataType> for PyDataType

fn as_ref(&self) -> &DataType

Converts this type into a shared reference of the (usually inferred) input type.

impl Debug for PyDataType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for PyDataType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&DataType> for PyDataType

fn from(value: &DataType) -> Self

Converts to this type from the input type.

impl From<DataType> for PyDataType

fn from(value: DataType) -> Self

Converts to this type from the input type.

impl From<PyDataType> for Arro3DataType

fn from(value: PyDataType) -> Self

Converts to this type from the input type.

impl From<PyDataType> for DataType

fn from(value: PyDataType) -> Self

Converts to this type from the input type.

impl<'a> FromPyObject<'a> for PyDataType

fn extract_bound(ob: &Bound<'a, PyAny>) -> PyResult<Self>

Extracts Self from the bound smart pointer obj.

impl<'py> IntoPyObject<'py> for PyDataType

type Target = PyDataType

The Python output type

type Output = Bound<'py, <PyDataType as IntoPyObject<'py>>::Target>

The smart pointer type to use.

type Error = PyErr

The type returned in the event of a conversion error.

fn into_pyobject( self, py: Python<'py>, ) -> Result<<Self as IntoPyObject<'_>>::Output, <Self as IntoPyObject<'_>>::Error>

Performs the conversion.

impl PartialEq for PyDataType

fn eq(&self, other: &PyDataType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PyClass for PyDataType

type Frozen = True

Whether the pyclass is frozen.

impl PyClassBaseType for PyDataType

type LayoutAsBase = PyClassObject<PyDataType>

type BaseNativeType = <PyDataType as PyClassImpl>::BaseNativeType

type Initializer = PyClassInitializer<PyDataType>

type PyClassMutability = <PyDataType as PyClassImpl>::PyClassMutability

impl PyClassImpl for PyDataType

const IS_BASETYPE: bool = true

#[pyclass(subclass)]

const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]

const IS_MAPPING: bool = false

#[pyclass(mapping)]

const IS_SEQUENCE: bool = false

#[pyclass(sequence)]

const IS_IMMUTABLE_TYPE: bool = false

#[pyclass(immutable_type)]

const RAW_DOC: &'static CStr = /// A Python-facing wrapper around [DataType].

Docstring for the class provided on the struct or enum.

const DOC: &'static CStr

Fully rendered class doc, including the text_signature if a constructor is defined.

type BaseType = PyAny

Base class

type ThreadChecker = SendablePyClass<PyDataType>

This handles following two situations:

type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::ImmutableChild

Immutable or mutable

type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.

type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.

type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.

fn items_iter() -> PyClassItemsIter

fn lazy_type_object() -> &'static LazyTypeObject<Self>

fn dict_offset() -> Option<isize>

fn weaklist_offset() -> Option<isize>

impl PyClass__eq__SlotFragment<PyDataType> for PyClassImplCollector<PyDataType>

unsafe fn __eq__( self, py: Python<'_>, _raw_slf: *mut PyObject, arg0: *mut PyObject, ) -> PyResult<*mut PyObject>

Safety: _slf and _other must be valid non-null Python objects

impl<'a, 'holder, 'py> PyFunctionArgument<'a, 'holder, 'py, false> for &'holder PyDataType

type Holder = Option<PyClassGuard<'a, PyDataType>>

fn extract( obj: &'a Bound<'py, PyAny>, holder: &'holder mut Self::Holder, ) -> PyResult<Self>

impl PyMethods<PyDataType> for PyClassImplCollector<PyDataType>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for PyDataType

const NAME: &'static str = "DataType"

Class name.

const MODULE: Option<&'static str>

Module name, if any.

fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.

fn type_object(py: Python<'_>) -> Bound<'_, PyType>

Returns the safe abstraction over the type object.

fn is_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type or a subclass of this type.

fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type.

impl DerefToPyAny for PyDataType

impl Eq for PyDataType

impl StructuralPartialEq for PyDataType