Struct SubclassArrayWrapper 

pub struct SubclassArrayWrapper { /* private fields */ }

A Python-visible wrapper around a flat f64 data buffer with shape metadata.

Implements enough of the NumPy duck-typing surface to be accepted by code that inspects .shape, .dtype, .__len__, and .__getitem__.

Implementations

impl SubclassArrayWrapper

pub fn new(data: Vec<f64>, shape: Vec<usize>, dtype: String) -> PyResult<Self>

Construct a new wrapper.

Arguments

• data – flat element buffer; length must equal the product of shape.
• shape – logical shape; [] is interpreted as a 0-d scalar.
• dtype – NumPy-compatible dtype string such as "float64".

pub fn __len__(&self) -> usize

Number of elements (flat).

pub fn __getitem__(&self, idx: usize) -> PyResult<f64>

Return element at flat index idx.

Errors

Returns IndexError if idx is out of bounds.

pub fn values(slf: PyRef<'_, Self>) -> PyRef<'_, Self>

Return self — mirrors pandas .values which returns the underlying array.

This makes SubclassArrayWrapper itself accepted by from_array_like_f64.

pub fn shape(&self) -> Vec<usize>

Logical shape tuple.

pub fn dtype(&self) -> &str

NumPy-compatible dtype string.

pub fn to_list(&self) -> Vec<f64>

Flat copy of the data as a Python list.

Trait Implementations

impl<'py> IntoPyObject<'py> for SubclassArrayWrapper

type Target = SubclassArrayWrapper

The Python output type

type Output = Bound<'py, <SubclassArrayWrapper 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 PyClass for SubclassArrayWrapper

const NAME: &str = "SubclassArrayWrapper"

Name of the class.

type Frozen = False

Whether the pyclass is frozen.

impl PyClassImpl for SubclassArrayWrapper

const MODULE: Option<&str> = ::core::option::Option::None

Module which the class will be associated with.

const IS_BASETYPE: bool = false

#[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-visible wrapper around a flat `f64` data buffer with shape metadata. /// /// Implements enough of the NumPy duck-typing surface to be accepted by code /// that inspects `.shape`, `.dtype`, `.__len__`, and `.__getitem__`.

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 Layout = <<SubclassArrayWrapper as PyClassImpl>::BaseNativeType as PyClassBaseType>::Layout<SubclassArrayWrapper>

Description of how this class is laid out in memory

type BaseType = PyAny

Base class

type ThreadChecker = NoopThreadChecker

This handles following two situations:

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

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<PyObjectOffset>

Used to provide the dictoffset slot (equivalent to tp_dictoffset)

fn weaklist_offset() -> Option<PyObjectOffset>

Used to provide the weaklistoffset slot (equivalent to tp_weaklistoffset

impl PyClassNewTextSignature for SubclassArrayWrapper

const TEXT_SIGNATURE: &'static str = "(data, shape, dtype=...)"

impl PyMethods<SubclassArrayWrapper> for PyClassImplCollector<SubclassArrayWrapper>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for SubclassArrayWrapper

const NAME: &str = <Self as ::pyo3::PyClass>::NAME

👎Deprecated since 0.28.0:

prefer using ::type_object(py).name() to get the correct runtime value

Class name.

const MODULE: Option<&str> = <Self as ::pyo3::impl_::pyclass::PyClassImpl>::MODULE

👎Deprecated since 0.28.0:

prefer using ::type_object(py).module() to get the correct runtime value

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 SubclassArrayWrapper

impl ExtractPyClassWithClone for SubclassArrayWrapper