yaml文件与字典之间转换

pip install pyyaml

def save_dict_to_yaml(dict_value: dict, save_path: str):
    """dict保存为yaml"""
    with open(save_path, 'w') as file:
        file.write(yaml.dump(dict_value, allow_unicode=True))


def read_yaml_to_dict(yaml_path: str, ):
    """yaml读取出来到字典"""
    with open(yaml_path) as file:
        dict_value = yaml.load(file.read(), Loader=yaml.FullLoader)
        return dict_value

样例

temp_dic = {
    "name":"ws",
    "age":"18",
    "love":["吃","喝","玩","乐"]
}

temp_str = yaml.dump(temp_dic,allow_unicode=True)
print(temp_str)

-------------------
age: '18'
love:
- 吃
- 喝
- 玩
- 乐
name: ws
-------------------

思考：你看他排序都是英文字母排序的，我能否改变他的排序方式呢

 

是的，yaml.dump可以使用参数控制输出的顺序。可以通过设置参数default_flow_style=False来输出字典的键值对按照字典的顺序排列，而不是按照随机顺序排列。例如：

```python
import yaml

data = {'c': 1, 'a': 2, 'b': 3}

# 默认情况下，yaml.dump按照随机顺序输出字典的键值对
print(yaml.dump(data))

# 设置default_flow_style=False，按照字典的顺序输出字典的键值对
print(yaml.dump(data, default_flow_style=False))
```

输出结果为：

```
{a: 2, c: 1, b: 3}
a: 2
c: 1
b: 3
```