[lxml] putting & into element.text

hi there, i'm quite confused cause putting and & into the text field of an element causes the & to be converted to &? example:

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from lxml import etree root = etree.Element('test') root.text = '&' print(etree.tostring(root)) b'<test>&</test>'

how would I turn that off? I suppose thats not a bug... its a feature ^^ btw. is there any way to disable lxml.html.parse(...) to convert my &#<number>; into the true unicode chars? i have: python3.2 from the ubuntu 11.04 repo lxml from the ubuntu 11.04 repo for python3 plan_rich