Method len

src/objectprotocol.rs:280–287

(&self, py: Python)

    /// This is equivalent to the Python expression: 'len(self)'
    #[inline]
    fn len(&self, py: Python) -> PyResult<usize> {
        let v = unsafe { ffi::PyObject_Size(self.as_ptr()) };
        if v == -1 {
            Err(PyErr::fetch(py))
        } else {
            Ok(v as usize)
        }
    }

    /// This is equivalent to the Python expression: 'self[key]'
    #[inline]