Method extract

src/objects/string.rs:501–503

(py: Python, obj: &'s PyObject)

/// not valid UTF-8).
impl<'s> FromPyObject<'s> for Cow<'s, str> {
    fn extract(py: Python, obj: &'s PyObject) -> PyResult<Self> {
        obj.cast_as::<PyString>(py)?.to_string(py)
    }
}

/// Allows extracting strings from Python objects.