Struct PyList

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

Represents a Python list.

Values of this type are accessed via PyO3’s smart pointers, e.g. as Py<PyList> or Bound<'py, PyList>.

For APIs available on list objects, see the PyListMethods trait which is implemented for Bound<'py, PyList>.

Implementations

impl PyList

pub fn new<'py, T, U>( py: Python<'py>, elements: impl IntoIterator<Item = T, IntoIter = U>, ) -> PyResult<Bound<'py, PyList>>

where T: IntoPyObject<'py>, U: ExactSizeIterator<Item = T>,

Constructs a new list with the given elements.

If you want to create a PyList with elements of different or unknown types, or from an iterable that doesn’t implement ExactSizeIterator, use PyListMethods::append.

Examples

use pyo3::prelude::*;
use pyo3::types::PyList;

Python::with_gil(|py| {
    let elements: Vec<i32> = vec![0, 1, 2, 3, 4, 5];
    let list = PyList::new(py, elements)?;
    assert_eq!(format!("{:?}", list), "[0, 1, 2, 3, 4, 5]");
})

Panics

This function will panic if element’s ExactSizeIterator implementation is incorrect. All standard library structures implement this trait correctly, if they do, so calling this function with (for example) Vec<T> or &[T] will always succeed.

pub fn new_bound<T, U>( py: Python<'_>, elements: impl IntoIterator<Item = T, IntoIter = U>, ) -> Bound<'_, PyList>

where T: ToPyObject, U: ExactSizeIterator<Item = T>,

👎Deprecated since 0.23.0: renamed to PyList::new

Deprecated name for PyList::new.

pub fn empty(py: Python<'_>) -> Bound<'_, PyList>

Constructs a new empty list.

pub fn empty_bound(py: Python<'_>) -> Bound<'_, PyList>

👎Deprecated since 0.23.0: renamed to PyList::empty

Deprecated name for PyList::empty.

Trait Implementations

impl PyTypeInfo for PyList

const NAME: &'static str = "PyList"

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

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

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

Returns the safe abstraction over the type object.

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

👎Deprecated since 0.23.0: renamed to PyTypeInfo::type_object

Deprecated name for PyTypeInfo::type_object.

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

👎Deprecated since 0.23.0: renamed to PyTypeInfo::is_type_of

Deprecated name for PyTypeInfo::is_type_of.

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

Checks if object is an instance of this type.

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

👎Deprecated since 0.23.0: renamed to PyTypeInfo::is_exact_type_of

Deprecated name for PyTypeInfo::is_exact_type_of.

impl DerefToPyAny for PyList