python 删除字典某个key(键)及对应值

#!/usr/bin/python
# -*- coding: UTF-8 -*-
 
dict = {‘Name‘: ‘Zara‘, ‘Age‘: 7, ‘Class‘: ‘First‘};
 
del dict[‘Name‘]; # 删除键是‘Name‘的条目
dict.clear();     # 清空词典所有条目
del dict ;        # 删除词典
 
print "dict[‘Age‘]: ", dict[‘Age‘];
print "dict[‘School‘]: ", dict[‘School‘];

dict[‘Age‘]:
Traceback (most recent call last):
  File "test.py", line 8, in <module>
    print "dict[‘Age‘]: ", dict[‘Age‘];
TypeError: ‘type‘ object is unsubscriptable