Trait PythonizeMappingType 

pub trait PythonizeMappingType {
    type Builder<'py>: 'py;

    // Required methods
    fn builder<'py>(
        py: Python<'py>,
        len: Option<usize>,
    ) -> PyResult<Self::Builder<'py>>;
    fn push_item<'py>(
        builder: &mut Self::Builder<'py>,
        key: Bound<'py, PyAny>,
        value: Bound<'py, PyAny>,
    ) -> PyResult<()>;
    fn finish<'py>(
        builder: Self::Builder<'py>,
    ) -> PyResult<Bound<'py, PyMapping>>;
}

Trait for types which can represent a Python mapping

Required Associated Types

type Builder<'py>: 'py

Builder type for Python mappings

Required Methods

fn builder<'py>( py: Python<'py>, len: Option<usize>, ) -> PyResult<Self::Builder<'py>>

Create a builder for a Python mapping

fn push_item<'py>( builder: &mut Self::Builder<'py>, key: Bound<'py, PyAny>, value: Bound<'py, PyAny>, ) -> PyResult<()>

Adds the key-value item to the mapping being built

fn finish<'py>(builder: Self::Builder<'py>) -> PyResult<Bound<'py, PyMapping>>

Build the Python mapping

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl PythonizeMappingType for PyDict

type Builder<'py> = Bound<'py, PyDict>

fn builder<'py>( py: Python<'py>, _len: Option<usize>, ) -> PyResult<Self::Builder<'py>>

fn push_item<'py>( builder: &mut Self::Builder<'py>, key: Bound<'py, PyAny>, value: Bound<'py, PyAny>, ) -> PyResult<()>

fn finish<'py>(builder: Self::Builder<'py>) -> PyResult<Bound<'py, PyMapping>>

Implementors