Case Insensitive findall in Python ElementTree

Question

I have to parse XML that has tag names that may be in any case (mixed, upper, lower, etc) and I don\'t know what the case will be beforehand. How can I make findall be total

Answer 1

You simply get the string from the tree, lowercase it, and remake the tree. Then it should be parseable

import xml.etree.ElementTree as ET
def to_parseable(tree):
    t = ET.tostring(tree)
    t = t.lower()
    return ET.fromstring(t)

Answer 2

Regex to the rescue. Note this is probably horrific in terms of performance but is great at extracted XML attributes from elements.

def getInsensitiveAttrbiute(element, key) :

   keyRegex = re.compile(key, re.IGNORECASE)
   for key in element.attrib.keys() :
       if keyRegex.match(key) :
           return element.attrib[key]
   raise KeyError


element = ET.fromstring('<FOO src="BAR" />')
print getInsensitiveAttrbiute(element, "sRc")