Editing values in a xml file with Python

Question

Hey. I want to have a config.xml file for settings in a Python web app.

I made car.xml manually. It looks like this:

Answer 1

Without addressing the merits of using XML instead of a Python module for managing configuration files, here's how to do what you asked using lxml:

>>> from lxml import etree
>>> xml = """
   
      on
   
"""
>>> doc = etree.fromstring(xml)
>>> elm = doc.xpath("/car/lights/blinkers")[0]
>>> elm.text="off"
>>> etree.tostring(doc)
'\n   \n      off\n   \n'