XML换行符实体和Python编码 [英] XML line break character entity and Python encoding

问题描述

我在python脚本中有以下代码行：

I have the following line of code in a python script:

dep11 = ET.SubElement(dep1, "POVCode").text = "#declare lg_quality = LDXQual;
#if (lg_quality = 3)
#declare lg_quality = 4;
#end"

我的问题是关于&＃x0A; 字符的。我想在XML输出中看到该字符实体，但是第一个&号始终被& 字符实体所取代，该字符实体创建了无意义的字符实体&＃x0A; 。

My question is in regards to the 
 character. I want to see this character entity in the XML output, but the first ampersand keeps getting replaced with the & character entity, which creates the nonsense character entity 
.

我正在将文件编码为 utf-8 。

import xml.etree.ElementTree as ET

...

with open("LGEO.xml", "wb") as f:
    tree.write(f, "utf-8")

我最终得到：

<POVCode>#declare lg_quality = LDXQual;&amp;#x0A;#if (lg_quality = 3)&amp;#x0A;#declare lg_quality = 4;&amp;#x0A;#end</POVCode>

不确定我在做什么错。

[edit]

我正在尝试实施@mzjn指出的解决方案。

I am trying to implement the solution found here that @mzjn pointed out.

如何输出XML实体引用

我有六行代码：

dep11 = ET.SubElement(dep1, "POVCode")
dep21 = ET.SubElement(dep2, "POVCode")
dep11.text = "#declare lg_quality = LDXQual;&
#if (lg_quality = 3)&
#declare lg_quality = 4;&
#end"
dep21.text = "#declare lg_studs = LDXStuds;&
"
ET.tostring(dep11).replace('&&', '&')
ET.tostring(dep21).replace('&&', '&')

我没有收到错误，但结果与在我编写树之前。

I get no error, but the result is not any different than before when I write the tree.

我又被卡住了。

推荐答案

我最终要做的是使用标准的Python write 函数，而不是使用ElementTree自己的

What I eventually did was use the standard Python write function instead of using ElementTree's own write function.

text = ET.tostring(root).replace("&&", "&")

with open("LGEO.xml", "wb") as f:
    f.write(text.encode("utf-8"))

以上是Python代码的最后一步。我不知道将根对象转换成这样的字符串是否有缺点。可能会慢一些，但对我有用。

The above is the last step in the Python code. I don't know if there are disadvantages to converting the root object to a string like this. It could be slower but it works for me.

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