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[英]Python raises a KeyError (for an out of dictionary key) even though the key IS in the dictionary
[英]OrderedDict: Unable Return the item of d with key key. Raises a KeyError
访问xmltodict转换后的值。 我有一个看起来像这样的xml
<PQ N="E90" RT="TG">
<CASES ASOF_DATE="8/11/2017" CREATE_DATE="8/13/2017" RECORDS="1130" >
<CASE>
<ID>E90</ID>
我正在尝试访问CASE词典。 如果删除第二行XML并尝试返回d [PQ] ['CASE'],则会得到所需的结果,这是该代码:
def convert(xml_file, xml_attribs=True):
with open(xml_file, "rb") as f:
d = xmltodict.parse(f, xml_attribs=xml_attribs)
return (d['FUND'])
d的输出如下所示:
OrderedDict([(PQ, OrderedDict([('@N', 'E90'), ('@RT', 'TG'), (CASES,
OrderedDict([('@ASOF_DATE', '8/11/2017'), ('@CREATE_DATE', '8/13/2017'),
('@RECORDS', '1130'), (CASE, [OrderedDict([('ID, E90), ..... so on
问题 :无法用钥匙钥匙返回d的项目。 引发KeyError。
我正在尝试访问CASE词典。
资料 :
od['PQ'] = \\ OrderedDict({'@N':"E90", '@RT':"TG", 'CASES': OrderedDict({'ASOF_DATE':"8/11/2017", 'CREATE_DATE':"8/13/2017", 'RECORDS':"1130", 'CASE': OrderedDict({'ID':'E90'})})})
print(od['PQ'])
>>> OrderedDict([('@N', 'E90'), ('@RT', 'TG'), ('CASES', OrderedDict([('ASOF_DATE', '8/11/2017'), ('CREATE_DATE', '8/13/2017'), ('RECORDS', '1130'), ('CASE', OrderedDict([('ID', 'E90')]))]))])
print(od['PQ']['CASES'])
>>> OrderedDict([('ASOF_DATE', '8/11/2017'), ('CREATE_DATE', '8/13/2017'), ('RECORDS', '1130'), ('CASE', OrderedDict([('ID', 'E90')]))])
print(od['PQ']['CASES']['CASE'])
>>> OrderedDict([('ID', 'E90')])
print(od.get('PQ').get('CASES').get('CASE'))
>>> OrderedDict([('ID', 'E90')])
print('list(od[\'PQ\'])[2] {}'.format(list(od['PQ'].values())[2]))
>>> list(od['PQ'])[2] OrderedDict([('ASOF_DATE', '8/11/2017'), ('CREATE_DATE', '8/13/2017'), ('RECORDS', '1130'), ('CASE', OrderedDict([('ID', 'E90')]))])
for kv in list(od['PQ'].values()):
print('od[\'PQ\'].values {}'.format(kv))
>>> od['PQ'].values E90
>>> od['PQ'].values TG
>>> od['PQ'].values OrderedDict([('ASOF_DATE', '8/11/2017'), ('CREATE_DATE', '8/13/2017'), ('RECORDS', '1130'), ('CASE', OrderedDict([('ID', 'E90')]))])
for k,v in od.items():
print('items(od) {}:{}'.format(k,v))
>>> items(od) PQ:OrderedDict([('@N', 'E90'), ('@RT', 'TG'), ('CASES', OrderedDict([('ASOF_DATE', '8/11/2017'), ('CREATE_DATE', '8/13/2017'), ('RECORDS', '1130'), ('CASE', OrderedDict([('ID', 'E90')]))]))])
使用Python测试:3.4.2
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