如何以特定的间隔将项目插入到列表中以匹配另一个列表的len？

def insert_projects_with_interval(project_list, target_list, interval):
    result_list = []
    insert_count = len(target_list) // interval

    for i in range(insert_count):
        result_list.extend(project_list)
        result_list.extend(target_list[i*interval : (i+1)*interval])

    result_list.extend(target_list[(insert_count*interval):])

    return result_list

# 示例数据
project_list = ['projectA', 'projectB', 'projectC']
target_list = ['item1', 'item2', 'item3', 'item4', 'item5']
interval = 2

result = insert_projects_with_interval(project_list, target_list, interval)
print(result)