Method popleft

crates/vm/src/stdlib/_collections.rs:225–230

(&self, vm: &VirtualMachine)

        #[pymethod]
        fn popleft(&self, vm: &VirtualMachine) -> PyResult {
            self.state.fetch_add(1);
            self.borrow_deque_mut()
                .pop_front()
                .ok_or_else(|| vm.new_index_error("pop from an empty deque"))
        }

        #[pymethod]
        fn remove(&self, obj: PyObjectRef, vm: &VirtualMachine) -> PyResult {