How to create xml in memory, attach it to json and send?

Question

Python

Good day.
Can you please tell me how to create xml in buffer, attach it to json and send?

def send_json(**kwargs):
    send_to = 'http://bla-bla.ru/external/'
    msg = {}

    msg.update(kwargs)
    context = MyObject.objects.get(pk=kwargs.get('id'))
    xml = render_to_string('xml_template_min.xml',
                           {'object': context})

    f = io.TextIOBase(xml, encoding='text/xml;name="myobject.xml"')
    r = requests.post(send_to, files=f, data=msg)

I imagined it something like this, but, apparently, I have the wrong idea.
render_to_string is a django function that returns a string.
Tell me how to do it right? Important: do not save the file in the system, everything is in memory.

Answer 1

>>> from xml.etree import ElementTree as ET
>>> root = ET.Element("root")
>>> ET.SubElement(root, 'b')
>>> ET.SubElement(root, 'a')
>>> ET.SubElement(root, 'c')
>>> ET.tostring(root)
'<root><b /><a /><c /></root>'