Python 2.7: type object “ElementTree” has no attribute “register_namespace”

Question

with this python 2.7.3 (or 2.7.0) code I want to change the value of the attribute \"android:versionCode=\'2\'\", which has the namespace prefix \"android\":

Answer 1

register_namespace() is a function contained within the ElementTree module.
It is not contained within the ElementTree class...

An aside: Because of the confusion that is sometimes caused by doing so it is generally not recommended to use the same name for both module and class. But we are not about to break production code by renaming a widely used module now are we?

You simply need to change your code:

#!/usr/bin/python
import xml.etree.ElementTree as ET # import entire module; use alias for clarity
import sys, os

# note that this is the *module*'s `register_namespace()` function
ET.register_namespace("android", "http://schemas.android.com/apk/res/android")

tree = ET.ElementTree() # instantiate an object of *class* `ElementTree`
tree.parse("AndroidManifest.xml")
root = tree.getroot()
root.attrib["{http://schemas.android.com/apk/res/android}versionCode"] = "3"

ET.dump(tree) # we use the *module*'s `dump()` function