Method __setitem__

crates/vm/src/stdlib/_collections.rs:288–294

(&self, idx: isize, value: PyObjectRef, vm: &VirtualMachine)

        }

        fn __setitem__(&self, idx: isize, value: PyObjectRef, vm: &VirtualMachine) -> PyResult<()> {
            let mut deque = self.borrow_deque_mut();
            idx.wrapped_at(deque.len())
                .and_then(|i| deque.get_mut(i))
                .map(|x| *x = value)
                .ok_or_else(|| vm.new_index_error("deque index out of range"))
        }

        fn __delitem__(&self, idx: isize, vm: &VirtualMachine) -> PyResult<()> {
            let mut deque = self.borrow_deque_mut();