问题
at the risk of getting yelled at for asking such a simple question, but I have been trawling the internet for answers and this particular case seems to be widely avoided and the docs are ambiguous:
Is it possible to use xml.etree.ElementTree.write() to write non-string values in an element's attribute? I always get:
TypeError: cannot serialize 0 (type int)
when I try something like this:
root = ET.Element('Tasks')
d = {'priority': 1, 'status': 0, 'name': 'new task', 'index': 0}
d = ET.SubElement(root, 'Settings', attrib=d)
tree = ET.ElementTree(root)
tree.write('/tmp/xmlTest')
I have been working around it several times by iterating over the respective dictionary and turning all values into strings first, but that doesn't feel right and before I botch it again I would like to know how it should be done properly as to not get used to a bad habit. So any insight would be much appreciated.
Cheers, frank
回答1:
In contrast with XML data, XML attributes are texts. http://www.w3schools.com/xml/xml_attributes.asp
It is up to you to serialize attributes to strings before xml serialization.
来源：https://stackoverflow.com/questions/19534288/can-xml-etree-elementtree-write-integer-values-for-a-given-element