4 ways to remove a dictionary element from Python __python

1. The clear () method of the Python dictionary (delete all elements in the dictionary)

#!/usr/bin/python
#-*-coding:utf-8-*-
dict = {' name ': ' My blog address ', ' Alexa ': 10000, ' url ': ' http://blog.csdn.net/ uuihoo/'}
dict.clear ();  # Empty Dictionary all entries

2. The pop () method of the Python dictionary (deletes the value of the dictionary given key keys and returns the value to be deleted)

#!/usr/bin/python
#-*-coding:utf-8-*-
site= {' name ': ' My blog address ', ' Alexa ': 10000, ' url ': ' http://blog.csdn.net/ uuihoo/'}
pop_obj=site.pop (' name ') # Delete key value pairs that you want to delete, such as {' name ': ' My blog address '} This key value to
print pop_obj   # output: my blog address

3. Popitem () method of the Python dictionary (randomly returns and deletes a pair of keys and values in the dictionary)

#!/usr/bin/python
#-*-coding:utf-8-*-
site= {' name ': ' My blog address ', ' Alexa ': 10000, ' url ': ' Http://blog.csdn.net /uuihoo/'}
Pop_obj=site.popitem () # randomly returns and deletes a key value pair of
print pop_obj   # output may be {' url ', ' http:// blog.csdn.net/uuihoo/'}

4. Del Global method (can delete a single element can also empty the dictionary, empty only one operation)

#!/usr/bin/python
#-*-coding:utf-8-*-
site= {' name ': ' My blog address ', ' Alexa ': 10000, ' url ': ' http://blog.csdn.net/ uuihoo/'}
del site[' name ' # Delete key is ' name ' entry 
del site  # empty dictionary all entries