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Delete section about immutability of pyclasses

This commit is contained in:
mejrs 2022-05-05 22:24:49 +02:00
parent 8921d5d1c0
commit 5bdf6987c3
1 changed files with 0 additions and 22 deletions
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guide/src/class.md
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@ -604,28 +604,6 @@ Python::with_gil(|py| {
});
```
Note that unlike class variables defined in Python code, class attributes defined in Rust cannot
be mutated at all:
```rust,should_panic
# use pyo3::prelude::*;
# #[pyclass]
# struct MyClass {}
# #[pymethods]
# impl MyClass {
# #[classattr]
# fn my_attribute() -> String {
# "hello".to_string()
# }
# }
#
Python::with_gil(|py| {
let my_class = py.get_type::<MyClass>();
// Would raise a `TypeError: can't set attributes of built-in/extension type 'MyClass'`
pyo3::py_run!(py, my_class, "my_class.my_attribute = 'foo'")
});
```
If the class attribute is defined with `const` code only, one can also annotate associated
constants: