python - 在Python中合并多个列表中的字典

Question

我有三个列表，里面有多个字典。

list1 = [{'question': u'Fan offline information can be found on what Screen under General Menu? '}, {'question': u'What is the tool for F5 BIGIP to get packet traces. '}, {'question': u'On a HTTP Health Monitor configuration. If Receive string and Disabling string matched and Reverse is enabled. What would be the status of pool members?'}]
list2 = [{'answer': u'SysteminfoScreen'}, {'answer': u'qkview'}, {'answer': u'Offline'}]
list3 = [{'correct_answer': u'SysteminfoScreen'}, {'correct_answer': u'TCP Dump'}, {'correct_answer': u'Disabled'}]

如何组合这三个列表以获得与此类似的结果？

[{'question': u'What is the tool for F5 BIGIP to get packet traces. ', 'answer': u'qkview', 'correct_answer': u'TCP Dump'}]

如果上述问题无法解决，另一种选择

list1 = ['Fan offline information can be found on what Screen under General Menu? ', 'What is the tool for F5 BIGIP to get packet traces. ', 'On a HTTP Health Monitor configuration. If Receive string and Disabling string matched and Reverse is enabled. What would be the status of pool members?']
list2 = ['SysteminfoScreen', 'qkview', 'Offline']
list3 = ['SysteminfoScreen', 'TCP Dump', 'Disabled']

将三者合并为相同的结果:

[{'question': u'What is the tool for F5 BIGIP to get packet traces. ', 'answer': u'qkview', 'correct_answer': u'TCP Dump'}]

附注

我使用的是 python 2.7.10

Answer 1

zip 列表中的字典项目。将字典转换为键值元组列表，使用 + 合并列表，然后将合并的列表转换回字典:

[dict(i.items()+j.items()+k.items()) for i, j, k in zip(list1, list2, list3)]

在 python 3.x 中，您需要在 dict_items 上调用 list:

[dict(list(i.items())+list(j.items())+list(k.items())) for i,j,k in zip(list1, list2, list3)]

结果:

[{'answer': 'SysteminfoScreen',
  'question': 'Fan offline information can be found on what Screen under General Menu? ',
  'correct_answer': 'SysteminfoScreen'},
 {'answer': 'qkview',
  'question': 'What is the tool for F5 BIGIP to get packet traces. ',
  'correct_answer': 'TCP Dump'},
 {'answer': 'Offline',
  'question': 'On a HTTP Health Monitor configuration. If Receive string and Disabling string matched and Reverse is enabled. What would be the status of pool members?',
  'correct_answer': 'Disabled'}]

字典项目没有排序，因此每个字典可能不会按问题-答案-正确答案的顺序排列。顺序可能不同。