Trait PySequenceMethods

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pub trait PySequenceMethods<'py>: Sealed {
Show 17 methods    // Required methods
    fn len(&self) -> PyResult<usize>;
    fn is_empty(&self) -> PyResult<bool>;
    fn concat(
        &self,
        other: &Bound<'_, PySequence>,
    ) -> PyResult<Bound<'py, PySequence>>;
    fn repeat(&self, count: usize) -> PyResult<Bound<'py, PySequence>>;
    fn in_place_concat(
        &self,
        other: &Bound<'_, PySequence>,
    ) -> PyResult<Bound<'py, PySequence>>;
    fn in_place_repeat(&self, count: usize) -> PyResult<Bound<'py, PySequence>>;
    fn get_item(&self, index: usize) -> PyResult<Bound<'py, PyAny>>;
    fn get_slice(
        &self,
        begin: usize,
        end: usize,
    ) -> PyResult<Bound<'py, PySequence>>;
    fn set_item<I>(&self, i: usize, item: I) -> PyResult<()>
       where I: ToPyObject;
    fn del_item(&self, i: usize) -> PyResult<()>;
    fn set_slice(
        &self,
        i1: usize,
        i2: usize,
        v: &Bound<'_, PyAny>,
    ) -> PyResult<()>;
    fn del_slice(&self, i1: usize, i2: usize) -> PyResult<()>;
    fn count<V>(&self, value: V) -> PyResult<usize>
       where V: ToPyObject;
    fn contains<V>(&self, value: V) -> PyResult<bool>
       where V: ToPyObject;
    fn index<V>(&self, value: V) -> PyResult<usize>
       where V: ToPyObject;
    fn to_list(&self) -> PyResult<Bound<'py, PyList>>;
    fn to_tuple(&self) -> PyResult<Bound<'py, PyTuple>>;
}

Expand description

Implementation of functionality for PySequence.

These methods are defined for the Bound<'py, PySequence> smart pointer, so to use method call syntax these methods are separated into a trait, because stable Rust does not yet support arbitrary_self_types.

Required Methods§

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fn len(&self) -> PyResult<usize>

Returns the number of objects in sequence.

This is equivalent to the Python expression len(self).

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fn is_empty(&self) -> PyResult<bool>

Returns whether the sequence is empty.

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fn concat( &self, other: &Bound<'_, PySequence>, ) -> PyResult<Bound<'py, PySequence>>

Returns the concatenation of self and other.

This is equivalent to the Python expression self + other.

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fn repeat(&self, count: usize) -> PyResult<Bound<'py, PySequence>>

Returns the result of repeating a sequence object count times.

This is equivalent to the Python expression self * count.

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fn in_place_concat( &self, other: &Bound<'_, PySequence>, ) -> PyResult<Bound<'py, PySequence>>

Concatenates self and other, in place if possible.

This is equivalent to the Python expression self.__iadd__(other).

The Python statement self += other is syntactic sugar for self = self.__iadd__(other). __iadd__ should modify and return self if possible, but create and return a new object if not.

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fn in_place_repeat(&self, count: usize) -> PyResult<Bound<'py, PySequence>>

Repeats the sequence object count times and updates self, if possible.

This is equivalent to the Python expression self.__imul__(other).

The Python statement self *= other is syntactic sugar for self = self.__imul__(other). __imul__ should modify and return self if possible, but create and return a new object if not.

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