minimize.py

import codecs
import sys
from xml.dom.minidom import parse, parseString

def minimize(el):
	attrs = []
	for i in range(0, el.attributes.length):
		attrs.append(el.attributes.item(i).name)
	for attr in attrs:
		if el.getAttribute(attr) == "" or el.getAttribute(attr) == "0":
			el.removeAttribute(attr)

domIn = parse(sys.argv[1])

for el in domIn.getElementsByTagName("action"):
	minimize(el)

for el in domIn.getElementsByTagName("field"):
	minimize(el)

domIn.writexml(codecs.open(sys.argv[2], 'w', 'utf-8'))