四、枚举的比较

#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
from enum import Enum


class User(Enum):
    Twowater = 98
    Liangdianshui = 30
    Tom = 12


Twowater = User.Twowater
Liangdianshui = User.Liangdianshui

print(Twowater == Liangdianshui, Twowater == User.Twowater)
print(Twowater is Liangdianshui, Twowater is User.Twowater)

try:
    print('\n'.join('  ' + s.name for s in sorted(User)))
except TypeError as err:
    print(' Error : {}'.format(err))

False True
False True
 Error : '<' not supported between instances of 'User' and 'User'

#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
import enum


class User(enum.IntEnum):
    Twowater = 98
    Liangdianshui = 30
    Tom = 12


try:
    print('\n'.join(s.name for s in sorted(User)))
except TypeError as err:
    print(' Error : {}'.format(err))

Tom
Liangdianshui
Twowater