Struct cpython::PySequence [−][src]
Represents a reference to a python object supporting the sequence protocol.
Implementations
impl PySequence
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pub fn len(&self, py: Python<'_>) -> PyResult<isize>
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Returns the number of objects in sequence. This is equivalent to Python len()
.
pub fn concat(&self, py: Python<'_>, other: &PySequence) -> PyResult<PyObject>
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Return the concatenation of o1 and o2. Equivalent to python o1 + o2
pub fn repeat(&self, py: Python<'_>, count: isize) -> PyResult<PyObject>
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Return the result of repeating sequence object o count times.
Equivalent to python o * count
NB: Python accepts negative counts; it returns an empty Sequence.
pub fn in_place_concat(
&self,
py: Python<'_>,
other: &PySequence
) -> PyResult<PyObject>
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&self,
py: Python<'_>,
other: &PySequence
) -> PyResult<PyObject>
Return the concatenation of o1 and o2 on success. Equivalent to python o1 += o2
pub fn in_place_repeat(
&self,
py: Python<'_>,
count: isize
) -> PyResult<PyObject>
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&self,
py: Python<'_>,
count: isize
) -> PyResult<PyObject>
Return the result of repeating sequence object o count times.
Equivalent to python o *= count
NB: Python accepts negative counts; it empties the Sequence.
pub fn get_item(&self, py: Python<'_>, index: isize) -> PyResult<PyObject>
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Return the ith element of the Sequence. Equivalent to python o[index]
pub fn get_slice(
&self,
py: Python<'_>,
begin: isize,
end: isize
) -> PyResult<PyObject>
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&self,
py: Python<'_>,
begin: isize,
end: isize
) -> PyResult<PyObject>
Return the slice of sequence object o between begin and end.
This is the equivalent of the Python expression o[begin:end]
pub fn set_item(&self, py: Python<'_>, i: isize, v: &PyObject) -> PyResult<()>
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Assign object v to the ith element of o.
Equivalent to Python statement o[i] = v
pub fn del_item(&self, py: Python<'_>, i: isize) -> PyResult<()>
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Delete the ith element of object o.
Python statement del o[i]
pub fn set_slice(
&self,
py: Python<'_>,
i1: isize,
i2: isize,
v: &PyObject
) -> PyResult<()>
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&self,
py: Python<'_>,
i1: isize,
i2: isize,
v: &PyObject
) -> PyResult<()>
Assign the sequence object v to the slice in sequence object o from i1 to i2.
This is the equivalent of the Python statement o[i1:i2] = v
pub fn del_slice(&self, py: Python<'_>, i1: isize, i2: isize) -> PyResult<()>
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Delete the slice in sequence object o from i1 to i2.
equivalent of the Python statement del o[i1:i2]
pub fn count<V>(&self, py: Python<'_>, value: V) -> PyResult<usize> where
V: ToPyObject,
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V: ToPyObject,
Return the number of occurrences of value in o, that is, return the number of keys for
which o[key] == value
pub fn contains<V>(&self, py: Python<'_>, value: V) -> PyResult<bool> where
V: ToPyObject,
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V: ToPyObject,
Determine if o contains value. this is equivalent to the Python expression value in o
pub fn index<V>(&self, py: Python<'_>, value: V) -> PyResult<usize> where
V: ToPyObject,
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V: ToPyObject,
Return the first index i for which o[i] == value.
This is equivalent to the Python expression o.index(value)
pub fn list(&self, py: Python<'_>) -> PyResult<PyList>
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Return a fresh list based on the Sequence.
pub fn tuple(&self, py: Python<'_>) -> PyResult<PyTuple>
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Return a fresh tuple based on the Sequence.
pub fn iter<'p>(&self, py: Python<'p>) -> PyResult<PyIterator<'p>>
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Trait Implementations
impl<'s> FromPyObject<'s> for PySequence
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impl<'s> FromPyObject<'s> for &'s PySequence
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impl PythonObject for PySequence
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fn as_object(&self) -> &PyObject
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fn into_object(self) -> PyObject
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unsafe fn unchecked_downcast_from(obj: PyObject) -> Self
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Unchecked downcast from PyObject to Self. Undefined behavior if the input object does not have the expected type.
unsafe fn unchecked_downcast_borrow_from<'a>(obj: &'a PyObject) -> &'a Self
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Unchecked downcast from PyObject to Self. Undefined behavior if the input object does not have the expected type.
impl PythonObjectWithCheckedDowncast for PySequence
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fn downcast_from<'p>(
py: Python<'p>,
obj: PyObject
) -> Result<PySequence, PythonObjectDowncastError<'p>>
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py: Python<'p>,
obj: PyObject
) -> Result<PySequence, PythonObjectDowncastError<'p>>
fn downcast_borrow_from<'a, 'p>(
py: Python<'p>,
obj: &'a PyObject
) -> Result<&'a PySequence, PythonObjectDowncastError<'p>>
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py: Python<'p>,
obj: &'a PyObject
) -> Result<&'a PySequence, PythonObjectDowncastError<'p>>
impl ToPyObject for PySequence
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Identity conversion: allows using existing PyObject
instances where
T: ToPyObject
is expected.
type ObjectType = PySequence
fn to_py_object(&self, py: Python<'_>) -> PySequence
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fn into_py_object(self, _py: Python<'_>) -> PySequence
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fn with_borrowed_ptr<F, R>(&self, _py: Python<'_>, f: F) -> R where
F: FnOnce(*mut PyObject) -> R,
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F: FnOnce(*mut PyObject) -> R,
Auto Trait Implementations
impl RefUnwindSafe for PySequence
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impl Send for PySequence
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impl Sync for PySequence
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impl Unpin for PySequence
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impl UnwindSafe for PySequence
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Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,