[英]Append Python List of Dictionaries by loops
我有2个Python字典清单:
[{'index':'1','color':'red'},{'index':'2','color':'blue'},{'index':'3','color':'green'}]
&
[{'device':'1','name':'x'},{'device':'2','name':'y'},{'device':'3','name':'z'}]
如何将第二个列表的每个字典追加到第一个列表,以得到如下输出:
[{'device':'1','name':'x'},{'index':'1','color':'red'},{'index':'2','color':'blue'},{'index':'3','color':'green'}]
[{'device':'2','name':'y'},{'index':'1','color':'red'},{'index':'2','color':'blue'},{'index':'3','color':'green'}]
[{'device':'3','name':'z'},{'index':'1','color':'red'},{'index':'2','color':'blue'},{'index':'3','color':'green'}]
我认为以下代码可以回答您的问题:
indexes = [
{'index':'1','color':'red'},
{'index':'2','color':'blue'},
{'index':'3','color':'green'}
]
devices = [
{'device':'1','name':'x'},
{'device':'2','name':'y'},
{'device':'3','name':'z'}
]
new_lists = [[device] for device in devices]
for new_list in new_lists:
new_list.extend(indexes)
我不知道您要将结果列表保存在哪里,所以我将它们打印出来:
d1 = [{'index':'1','color':'red'},{'index':'2','color':'blue'},{'index':'3','color':'green'}]
d2 = [{'device':'1','name':'x'},{'device':'2','name':'y'},{'device':'3','name':'z'}]
for item in d2:
print ([item] + d1)
输出:
[{'name':'x','device':'1'},{'index':'1','color':'red'},{'index':'2','color': 'blue'},{'index':'3','color':'green'}]]
[{'name':'y','device':'2'},{'index':'1','color':'red'},{'index':'2','color': 'blue'},{'index':'3','color':'green'}]]
[{'name':'z','device':'3'},{'index':'1','color':'red'},{'index':'2','color': 'blue'},{'index':'3','color':'green'}]]
(不要对单个目录中的项目顺序感到困惑,因为目录没有顺序。)
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