[英]How to remove multiple (key,value) entries from a Python List - Ordered Dictionary
I am trying to remove multiple keys from a list ordered dictionary without any success.我试图从列表有序字典中删除多个键,但没有成功。
The data structure I loaded from a file is shown below:我从文件加载的数据结构如下所示:
[OrderedDict([('name', 'pageshift'), ('value', ''), ('activity', 'dataupdate'), ('host_name', False), ('db_name', True)]),
OrderedDict([('name', 'bigdata'), ('value', ''), ('activity', 'freeze'), ('host_name', False), ('db_name', True)]),
OrderedDict([('name', 'spark'), ('value', ''), ('activity', 'dataupdate'), ('host_name', False), ('db_name', True)]),
OrderedDict([('name', 'django'), ('value', ''), ('activity', 'insert'), ('host_name', False), ('db_name', True)])]
When I am trying to delete some of the keys from the list of ordered dictionaries, it gives me an error:当我试图从有序字典列表中删除一些键时,它给了我一个错误:
for key in ('value','activity','db_name'):
del jdata[key]
Error message:错误信息:
TypeError: list indices must be integers,not str
Iterating a list of OrderedDict
is nothing different from a list of normal dictionary.迭代
OrderedDict
列表与普通字典列表没有什么不同。 You can do:你可以做:
for d in jdata:
for key in ('value', 'activity', 'db_name'):
del d[key]
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