How to Create XML with ElementTree

import xml.etree.ElementTree as xml
def createXML(filename):
    """
    Create an example XML file
    """
    root = xml.Element("zAppointments")
    appt = xml.Element("appointment")
    root.append(appt)
    # add appointment children
    begin = xml.SubElement(appt, "begin")
    begin.text = "1181251680"
    uid = xml.SubElement(appt, "uid")
    uid.text = "040000008200E000"
    alarmTime = xml.SubElement(appt, "alarmTime")
    alarmTime.text = "1181572063"
    state = xml.SubElement(appt, "state")
    location = xml.SubElement(appt, "location")
    duration = xml.SubElement(appt, "duration")
    duration.text = "1800"
    subject = xml.SubElement(appt, "subject")
    tree = xml.ElementTree(root)
    with open(filename, "w") as fh:
        tree.write(fh)
if __name__ == "__main__":
    createXML("appt.xml")