Struct pyo3::exceptions::PyLookupError
source · pub struct PyLookupError(PyAny);
Expand description
Represents Python’s LookupError
exception.
§Example: Raising LookupError from Rust
This exception can be sent to Python code by converting it into a
PyErr
, where Python code can then catch it.
use pyo3::prelude::*;
use pyo3::exceptions::PyLookupError;
#[pyfunction]
fn always_throws() -> PyResult<()> {
let message = "I'm LookupError, and I was raised from Rust.";
Err(PyLookupError::new_err(message))
}
Python code:
from my_module import always_throws
try:
always_throws()
except LookupError as e:
print(f"Caught an exception: {e}")
§Example: Catching LookupError in Rust
use pyo3::prelude::*;
use pyo3::exceptions::PyLookupError;
Python::with_gil(|py| {
let result: PyResult<()> = py.run_bound("raise LookupError", None, None);
let error_type = match result {
Ok(_) => "Not an error",
Err(error) if error.is_instance_of::<PyLookupError>(py) => "LookupError",
Err(_) => "Some other error",
};
assert_eq!(error_type, "LookupError");
});
Tuple Fields§
§0: PyAny
Implementations§
source§impl PyLookupError
impl PyLookupError
source§impl PyLookupError
impl PyLookupError
#[doc(hidden)] pub const _PYO3_DEF: AddTypeToModule<Self> = _
Methods from Deref<Target = PyAny>§
#[doc(hidden)] pub const _PYO3_DEF: AddTypeToModule<Self> = _
Trait Implementations§
source§impl AsPyPointer for PyLookupError
impl AsPyPointer for PyLookupError
source§impl AsRef<PyAny> for PyLookupError
impl AsRef<PyAny> for PyLookupError
source§impl Deref for PyLookupError
impl Deref for PyLookupError
source§impl PyClassBaseType for PyLookupError
impl PyClassBaseType for PyLookupError
source§impl PyTypeInfo for PyLookupError
impl PyTypeInfo for PyLookupError
source§const NAME: &'static str = "PyLookupError"
const NAME: &'static str = "PyLookupError"
Available on non-crate feature
gil-refs
only.Class name.
source§const MODULE: Option<&'static str> = _
const MODULE: Option<&'static str> = _
Available on non-crate feature
gil-refs
only.Module name, if any.
source§fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject
fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject
Available on non-crate feature
gil-refs
only.Returns the PyTypeObject instance for this type.
source§fn type_object_bound(py: Python<'_>) -> Bound<'_, PyType>
fn type_object_bound(py: Python<'_>) -> Bound<'_, PyType>
Available on non-crate feature
gil-refs
only.Returns the safe abstraction over the type object.
impl DerefToPyAny for PyLookupError
impl PyLayout<PyLookupError> for PyBaseExceptionObject
impl PySizedLayout<PyLookupError> for PyBaseExceptionObject
impl ToPyErr for PyLookupError
Auto Trait Implementations§
impl !Freeze for PyLookupError
impl !RefUnwindSafe for PyLookupError
impl !Send for PyLookupError
impl !Sync for PyLookupError
impl Unpin for PyLookupError
impl UnwindSafe for PyLookupError
Blanket Implementations§
source§impl<T> AssertNotZeroSized for T
impl<T> AssertNotZeroSized for T
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more