Remove whitespaces in XML string

Question

How can I remove the whitespaces and line breaks in an XML string in Python 2.6? I tried the following packages:

etree: This snippet keeps the original whitespaces:<

Answer 1

xmlStr = xmlDocument.toprettyxml(indent='\t', newl='\n', encoding='UTF-8')
fix = re.compile(r'((?<=>)(\n[\t]*)(?=[^<\t]))|(?<=[^>\t])(\n[\t]*)(?=<)')
newXmlStr = re.sub(fix, '', xmlStr )

from this source