根据xml文件的布局获取特定值非常简单。 (见:StackOverflow)
但是当我不知道xml元素时,我无法解决它。 因为xmltodoc在OrderedDicts中嵌套OrderedDicts。这些嵌套的OrderedDicts以Python为典型类型:' unicode'。而不是(仍然)作为OrderedDicts。因此,像这样循环,doens工作:
def myprint(d):
for k, v in d.iteritems():
if isinstance(v, list):
myprint(v)
else:
print "Key :{0}, Value: {1}".format(k, v)
我基本上想要的是递归整个xml文件,其中显示了每个键值对。当一个键的值是另一个键值对列表时,它应该递归到它中。
将此xml文件作为输入:
<?xml version="1.0" encoding="utf-8"?>
<session id="2934" name="Valves" docVersion="5.0.1">
<docInfo>
<field name="Employee" isMandotory="True">Jake Roberts</field>
<field name="Section" isOpen="True" isMandotory="False">5</field>
<field name="Location" isOpen="True" isMandotory="False">Munchen</field>
</docInfo>
</session>
以及上面列出的代码,会话中的所有数据都作为值添加到密钥会话中。
示例输出:
Key :session, Value: OrderedDict([(u'@id', u'2934'), (u'@name', u'Valves'), (u'@docVersion', u'5.0.1'), (u'docInfo', OrderedDict([(u'field', [OrderedDict([(u'@name', u'Employee'), (u'@isMandotory', u'True'), ('#text', u'Jake Roberts')]), OrderedDict([(u'@name', u'Section'), (u'@isOpen', u'True'), (u'@isMandotory', u'False'), ('#text', u'5')]), OrderedDict([(u'@name', u'Location'), (u'@isOpen', u'True'), (u'@isMandotory', u'False'), ('#text', u'Munchen')])])]))])
这显然不是我想要的。
答案 0 :(得分:2)
如果您在数据中遇到一个列表,那么您只需要在列表的每个元素上调用> nul 2>&1 forfiles /D +01-12-2015 /C "forfiles forfiles /M @file /D -31-12-2105 /C 0x22cmd /C if 00x7840isdir==FALSE > con echo 00x7840fdate 00x7840file0x22"
:
forfiles /C "forfiles forfiles"
然后你会得到类似的输出:
myprint
虽然我不确定这是多么有用,因为你有很多重复的密钥,比如def myprint(d):
if isinstance(d,dict): #check if it's a dict before using .iteritems()
for k, v in d.iteritems():
if isinstance(v, (list,dict)): #check for either list or dict
myprint(v)
else:
print "Key :{0}, Value: {1}".format(k, v)
elif isinstance(d,list): #allow for list input too
for item in d:
myprint(item)
,我想提供一个我刚才创建的函数来遍历嵌套的{{ 1}}嵌套...
Key :@name, Value: Employee
Key :@isMandotory, Value: True
Key :#text, Value: Jake Roberts
Key :@name, Value: Section
Key :@isOpen, Value: True
Key :@isMandotory, Value: False
Key :#text, Value: 5
...
和@name
s:
json
然后您可以使用以下内容遍历数据:
dict
使用list
和def traverse(obj, prev_path = "obj", path_repr = "{}[{!r}]".format)
if isinstance(obj,dict):
it = obj.items()
elif isinstance(obj,list):
it = enumerate(obj)
else:
yield prev_path,obj
return
for k,v in it:
for data in traverse(v, path_repr(prev_path,k), path_repr):
yield data
的默认值,它会提供如下输出:
for path,value in traverse(doc):
print("{} = {}".format(path,value))
虽然您可以为prev_path
编写一个函数来获取path_repr
的值(通过递归调用obj[u'session'][u'@id'] = 2934
obj[u'session'][u'@name'] = Valves
obj[u'session'][u'@docVersion'] = 5.0.1
obj[u'session'][u'docInfo'][u'field'][0][u'@name'] = Employee
obj[u'session'][u'docInfo'][u'field'][0][u'@isMandotory'] = True
obj[u'session'][u'docInfo'][u'field'][0]['#text'] = Jake Roberts
obj[u'session'][u'docInfo'][u'field'][1][u'@name'] = Section
obj[u'session'][u'docInfo'][u'field'][1][u'@isOpen'] = True
obj[u'session'][u'docInfo'][u'field'][1][u'@isMandotory'] = False
obj[u'session'][u'docInfo'][u'field'][1]['#text'] = 5
obj[u'session'][u'docInfo'][u'field'][2][u'@name'] = Location
obj[u'session'][u'docInfo'][u'field'][2][u'@isOpen'] = True
obj[u'session'][u'docInfo'][u'field'][2][u'@isMandotory'] = False
obj[u'session'][u'docInfo'][u'field'][2]['#text'] = Munchen
确定)和新密钥,例如,如果您想获取索引作为一个元组,你可以这样做:
path_repr
然后输出将是:
prev_path
我发现这在处理我的json数据时特别有用,但我不确定你想用你的xml做什么。