在 python 中列出所有 Enum 项（包括基类中的项）

Question

我是Python初学者，我想用一个方法列出所有枚举项。该方法在基类中定义为类函数。 基类有子类。并且子类还有额外的子类。 我使用了 python 扩展可扩展枚举。

致以诚挚的问候

马丁

from enum import Enum
from extendableenum import inheritable_enum

@inheritable_enum
class baseClassHours(Enum):
    NOHOUR= 'NoHour'

    @classmethod
    def list(cls):
        return list(map(lambda c: c.name, eval(cls.__name__)))


    @classmethod
    def listValue(cls):
        return list(map(lambda c: c.value, eval(cls.__name__)))


class night(baseClassHours):
    ONE = '1'
    TWO = '2'
    THREE = '3'
    FOUR = '4'
    FIVE = '5'
    SIX = '6'


class morning(baseClassHours):
    SEVEN = '7'
    EIGHT = '8'
    NINE = '9'
    TEN = '10'
    ELEVEN = '11'
    TWELVE = '12'


class afternoon(baseClassHours):
    THIRTEEN = '13'
    FOURTEEN = '14'
    FIFTEEN = '15'
    SIXTEEN = '16'
    SEVENTEEN = '17'
    EIGHTEEN = '18'


class evening(baseClassHours):
    NINETEEN = '19'
    TWENTY = '20'
    TWENTYONE = '21'
    TEWNTYTWO = '22'
    TWENTYTHREE = '23'
    TWENTYFOUR = '24'


print(evening.list())
print(evening.NOHOUR.value)
print(evening.NINETEEN.value)
print(evening.TWENTY.value)
print(evening.TWENTYONE.value)
print(evening.TWENTYTWO.value)
print(evening.TWENTYTHREE.value)
print(evening.TWENTYFOUR.value)

预期输出：

['NOHOUR', 'NINETEEN', 'TWENTY', 'TWENTYONE', 'TEWNTYTWO', 'TWENTYTHREE', 'TWENTYFOUR']
NoHour
19
20
21
22
23
24

但我明白：

['NINETEEN', 'TWENTY', 'TWENTYONE', 'TEWNTYTWO', 'TWENTYTHREE', 'TWENTYFOUR']
NoHour
19
20
21
22
23
24

Answer 1

根据项目存储库中提供的示例，看起来无法以这种方式访问

https://github.com/gweesip/extendable-enum/blob/main/docs/examples/example_inheritable_enum.py

# And create a subclass with new members
class MoreFruit(Fruit):
    MANGO = 4
    DRAGONFRUIT = 5

# Only the non-inherited members will be in _member_names_
print(MoreFruit._member_names_)

# Inherited members are not included in dir, len, reversed or iteration
print(dir(MoreFruit))
print(len(MoreFruit))
print([member for member in reversed(MoreFruit)])
print([member for member in MoreFruit])

# Inherited members can not be accessed by name
try:
    MoreFruit['APPLE']
except KeyError:
    print('Access to super members by name not supported')

# or by value
try:
    MoreFruit(1)
except ValueError:
    print('Access by value not allowed')

# but can still be accessed as attributes.
print(MoreFruit.APPLE)
# The returned members are the superclass members.
print(MoreFruit.APPLE is Fruit.APPLE)