Question

我正在编写ElementTree python代码，该代码将：

修改xml中的itemID并将其写入磁盘。
转到itemIDList中的下一个itemID修改xml中的itemID并写入磁盘

问题是XML被一遍又一遍覆盖，我想要的是将数据附加到新xml文件的末尾。

到目前为止，这是我的代码。

base_path = os.path.dirname(os.path.realpath(__file__))
xml_file = os.path.join(base_path, 'data.xml')
tree = ET.parse(xml_file)
root = tree.getroot()

with open('a.txt', 'r') as f:

    d = f.readlines()
    itemIDlist = []
    for i in range(len(d)-1):
        hold = d[i].split('\n')
        itemIDlist.append(str(hold[0]))
        for e in root.iter():

            if 'itemID' in e.keys():
                e.set('itemID', itemIDlist[i])
                new_data = ET.tostringlist(root)
                new_xml = open('newXml.xml', 'w')
                new_xml.write(new_data)

文本文件中有一个数字列表，例如：我们称之为a.txt

原始XML文件如下所示

    <requests>
    <inventory name="WaterMelon" itemID="6834833" action="inStock">
        <user username="Carlos">
            <role name="GeneralManager"/>
        </user>
    </inventory>
    <inventory name="StrawBerry" itemID="9283343" action="inStock">
        <user username="Carlos">
            <role name="GeneralManager"/>
        </user>
    </inventory>
    <inventory name="WaterMelon" itemID="" action="inStock">
        <user username="Carlos">
            <role name="GeneralManager"/>
        </user>
    </inventory>-->
</requests>

当前，我得到四个不同的文件，但是，我只想获得一个包含所有结果的XML文件。看起来应该像这样

<requests>
    <inventory action="inStock" itemID="19283" name="WaterMelon">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>
    <inventory action="inStock" itemID="19283" name="StrawBerry">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>
    <inventory action="inStock" itemID="19283" name="WaterMelon">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>-->

    <inventory action="inStock" itemID="29354" name="WaterMelon">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>
    <inventory action="inStock" itemID="29354" name="StrawBerry">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>
    <inventory action="inStock" itemID="29354" name="WaterMelon">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>-->

    <inventory action="inStock" itemID="34958" name="WaterMelon">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>
    <inventory action="inStock" itemID="34958" name="StrawBerry">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>
    <inventory action="inStock" itemID="34958" name="WaterMelon">
        <user username="Carlos">
            <role name="GeneralManager" />
        </user>
    </inventory>-->
</requests>

请帮助

Answer 1

此链接有相同的问题。 How to write xml file with multiple root element using ElementTree in python

我将字符串串联起来。

pct_df.plot(kind="bar", stacked=True)

这给了我们预期的结果；一个xml文件。

@see <a href="http://google.com">http://google.com</a>

仍然存在问题，当生成xml时，会有一个>不能正确解释并输出的信息
with open('a.txt', 'r') as f: d = f.readlines() itemIDlist = [] new_data = '' for i in range(len(d)-1): hold = d[i].split('\n') itemIDlist.append(str(hold[0])) for e in root.iter(): if 'itemID' in e.keys(): e.set('itemID', itemIDlist[i]) new_data += ET.tostring(root) new_xml = open('newXml.xml', 'w') new_xml.write(new_data)代替<requests> <inventory action="inStock" itemID="19283" name="WaterMelon"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory> <inventory action="inStock" itemID="19283" name="StrawBerry"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory> <inventory action="inStock" itemID="19283" name="WaterMelon"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory>--> </requests><requests> <inventory action="inStock" itemID="29354" name="WaterMelon"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory> <inventory action="inStock" itemID="29354" name="StrawBerry"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory> <inventory action="inStock" itemID="29354" name="WaterMelon"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory>--> </requests><requests> <inventory action="inStock" itemID="34958" name="WaterMelon"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory> <inventory action="inStock" itemID="34958" name="StrawBerry"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory> <inventory action="inStock" itemID="34958" name="WaterMelon"> <user username="Carlos"> <role name="GeneralManager" /> </user> </inventory>--> </requests>

修改整个XML属性，然后将所有结果合并为一个XML

1 个答案: