pub struct PyMemoryError(/* private fields */);
Expand description
Represents Python’s MemoryError
exception.
§Example: Raising MemoryError 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::PyMemoryError;
#[pyfunction]
fn always_throws() -> PyResult<()> {
let message = "I'm MemoryError, and I was raised from Rust.";
Err(PyMemoryError::new_err(message))
}
Python code:
from my_module import always_throws
try:
always_throws()
except MemoryError as e:
print(f"Caught an exception: {e}")
§Example: Catching MemoryError in Rust
use pyo3::prelude::*;
use pyo3::exceptions::PyMemoryError;
use pyo3::ffi::c_str;
Python::with_gil(|py| {
let result: PyResult<()> = py.run(c_str!("raise MemoryError"), None, None);
let error_type = match result {
Ok(_) => "Not an error",
Err(error) if error.is_instance_of::<PyMemoryError>(py) => "MemoryError",
Err(_) => "Some other error",
};
assert_eq!(error_type, "MemoryError");
});
Implementations§
source§impl PyMemoryError
impl PyMemoryError
Trait Implementations§
source§impl AsRef<PyAny> for PyMemoryError
impl AsRef<PyAny> for PyMemoryError
source§impl Deref for PyMemoryError
impl Deref for PyMemoryError
source§impl PyTypeInfo for PyMemoryError
impl PyTypeInfo for PyMemoryError
source§fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject
fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject
Returns the PyTypeObject instance for this type.
source§fn type_object(py: Python<'_>) -> Bound<'_, PyType>
fn type_object(py: Python<'_>) -> Bound<'_, PyType>
Returns the safe abstraction over the type object.
source§fn type_object_bound(py: Python<'_>) -> Bound<'_, PyType>
fn type_object_bound(py: Python<'_>) -> Bound<'_, PyType>
👎Deprecated since 0.23.0: renamed to
PyTypeInfo::type_object
Deprecated name for
PyTypeInfo::type_object
.source§fn is_type_of(object: &Bound<'_, PyAny>) -> bool
fn is_type_of(object: &Bound<'_, PyAny>) -> bool
Checks if
object
is an instance of this type or a subclass of this type.source§fn is_type_of_bound(object: &Bound<'_, PyAny>) -> bool
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
.source§fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool
fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool
Checks if
object
is an instance of this type.source§fn is_exact_type_of_bound(object: &Bound<'_, PyAny>) -> bool
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 PyMemoryError
impl PyLayout<PyMemoryError> for PyBaseExceptionObject
impl PySizedLayout<PyMemoryError> for PyBaseExceptionObject
impl ToPyErr for PyMemoryError
Auto Trait Implementations§
impl !Freeze for PyMemoryError
impl !RefUnwindSafe for PyMemoryError
impl !Send for PyMemoryError
impl !Sync for PyMemoryError
impl Unpin for PyMemoryError
impl UnwindSafe for PyMemoryError
Blanket Implementations§
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