问题

以下是翻译好的部分：

我有一个

    myenum(str, Enum):
       COLORRED = 'colorred'
       COLORBLUE = 'colorblue'

    itemList = [<myenum.COLORRED,'colorred'>]

我试图从itemList中获取'coloured'的值，但`itemList.value`在Python中会引发类型检查错误，错误消息为"str has no attribute value"。

list(map(str, myenum))会返回键COLORRED，但我需要值'coloured'。我尝试了https://stackoverflow.com/questions/58608361/string-based-enum-in-python，但都对我不起作用。

我的枚举是由openapi自动生成的。以下是它的yaml。

我收到myElements数组，并需要myEnum中的一个值。

    myElements:
      type: array
      items:
      allOf:
         - $ref: 'myEnum'
    
    myEnum:
      type: String
      enum:
        - 'state1'
        - 'state2'

注意：问题出在Python的类型检查上，而不是在迭代值上。我需要在不使用`.values`或`.name`的情况下获取枚举值。

<details>
<summary>英文:</summary>

I have a 

    myenum(str, Enum):
       COLORRED = &#39;colorred&#39;
       COLORBLUE = &#39;colorblue&#39;

    itemList = [&lt;myenum.COLORRED,&#39;colorred&#39;&gt;]

I am trying to get value from itemList &#39;coloured&#39; but `itemList.value` gives a type check error in Python with the error message &quot;str has no attribute value&quot;. 





  

list(map(str,myenum)) gives key COLORRED but I need the value &#39;coloured&#39;. I tried https://stackoverflow.com/questions/58608361/string-based-enum-in-python but none of them are working for me.

My enum is auto generated by openapi. below is yaml for it.
I receive array of myElements and need one value in myEnum.

    myElements:
      type: array
      items:
      allOf:
         - $ref: &#39;myEnum&#39;
    
    myEnum:
      type: String
      enum:
        - &#39;state1&#39;
        - &#39;state2&#39;

Note: Issue is with typecheck in python not iterating the values. I need enum values without using .values or .name 

</details>


# 答案1
**得分**: 3

看起来你试图使用列表的`.value`属性，而不是它的元素。

```python
from enum import Enum

class Color(Enum):
    RED = "color red"
    BLUE = "color blue"

lst = [Color.RED, Color.BLUE]
expected = ['color red', 'color blue']

# 这等同于 `list(map(lambda v: v.value, lst))`
values = [item.value for item in lst]
assert values == expected

from enum import Enum

class Color(Enum):
    RED = "color red"
    BLUE = "color blue"

lst = [Color.RED, Color.BLUE]
expected = ['color red', 'color blue']

# This is equivalent to `list(map(lambda v: v.value, lst))`
values = [item.value for item in lst]
assert values == expected

答案2

得分: 0

如果您正在使用Python 3.11，您可以使用StrEnum，这样您可以在不调用.value的情况下获取值。

class Color(StrEnum):
    RED = 'red'
    GREEN = 'green'
    BLUE = 'blue'

print(Color.RED)  # => red

还有IntEnum。

class Color(StrEnum):
RED = 'red'
GREEN = 'green'
BLUE = 'blue'
print(Color.RED) #=> red

答案3

得分: 0

I believe what you are after is the values of the enum in a list. If so, this may be something you can work with.

from enum import Enum

class myenum(str, Enum):
    COLORRED = 'colorred'
    COLORBLUE = 'colorblue'

mylist = [x.value for x in myenum]
# where mylist will be ['colorred', 'colorblue']

However, if you explain how you generate your list and how you would like to use the data (perhaps with a simple example), that might help the people to understand your objectives better.

from enum import Enum
class myenum(str, Enum):
COLORRED = 'colorred'
COLORBLUE = 'colorblue'
mylist = [x.value for x in myenum]
# where mylist will be ['colorred', 'colorblue']