枚举类

简单使用

from enum import Enum


class Weekday(Enum):
    MONDAY = 1
    TUESDAY = 2
    WEDNESDAY = 3
    THURSDAY = 4
    FRIDAY = 5
    SATURDAY = 6
    SUNDAY = 7


## The special attribute __members__ is a read-only ordered mapping of names to members.
## It includes all names defined in the enumeration, including the aliases:
for name, member in Weekday.__members__.items():
    print(name, member, member.value)

1. 枚举类的__members__是一个只读的字典

@unique

from enum import Enum, unique
@unique
class Mistake(Enum):
    ONE = 1
    TWO = 2
    ## 不允许同样的key
    THREE = 3
    FOUR = 3