import xml.etree.ElementTree as ET

def From(path):
    """Open an existing XML configuration file."""
    tree = ET.parse(path);
    root = tree.getroot();
    return Config(path);

class Config:
    path = None;
    tree = None;
    root = None;

    def __init__(self, path):
        self.path = path;
        self.tree = ET.parse(self.path);
        self.root = self.tree.getroot();

    def Read(self, key):
        """Return the value of a setting."""
        element = self.root;
        fragments = key.split(":");
        for fragment in fragments:
            for tag in element:
                if tag.tag == fragment:
                    element = tag;
                    break;
        return element.text;

    def Write(self, key, value):
        """Create a new setting or modify the value of an existing one."""
        element = self.root;
        fragments = key.split(":");
        for fragment in fragments:
            existing = False;
            for tag in element:
                if tag.tag == fragment:
                    element = tag;
                    existing = True;
                    break;
            if existing == False:
                element.append(ET.Element(fragment));
                for tag in element:
                    if tag.tag == fragment:
                        element = tag;
                        break;
        element.text = str(value);
        self.tree.write(self.path);

Note the following limitations in the current functionality:

• Reading or writing comments is not supported.
• This Python code can produce nested section more than one level deep. The resulting file may not be compatible with the main C# library.

For organizational purposes, it is reccomended to put the code in its own folder, like this: Root/ConfigAdapter/XmlConfig.py

Then, in your own code, import ConfigAdapter:

import ConfigAdapter.XmlConfig as Config;

Now you can start using it with a similar syntax to that of the main ConfigAdapter:

config = Config.From("ConfigFile.xml");

value = config.Read("Section:SettingName");
numeric = int(value);

config.Write("Section:SettingName", 42);
config.Write("Section:OtherSetting", "Value");