#!/usr/bin/env python3.6
# -*- coding: utf-8 -*-
# author: wangyadong
names = ('wang','wu')
print(names.index("wu"))
f7be6b48b7b45b2f8f047797c91e0e7d82eca97d
<mask token>

<mask token>
print(names.index('wu'))

names = 'wang', 'wu'
print(names.index('wu'))

#!/usr/bin/env python3.6
# -*- coding: utf-8 -*-
# author: wangyadong
names = ('wang','wu')
print(names.index("wu"))