etree get attribute as a value instead of a string

For a given Element, I want to check whether the xsi:nil attribute is set to true.

My current code is

xsinil = dataFact.get('{开发者_如何学编程http://www.w3.org/2001/XMLSchema-instance}nil', False)

But instead of being True xsinil is of type string...

What's the best solution? I don't think this is very elegant:

xsinil=dataFact.get('{http://www.w3.org/2001/XMLSchema-instance}nil', False)
if xsinil == 'true' or xsinil == '1' :
    xsinil = True

This looks nicer:

xsinil = dataFact.get('...', False) in ('true', '1')

It assigns True to xsinil variable only if result of get function is one of True, 'true' or '1'.

The second arg of Element.get() is almost irrelevant -- just don't use True.

All that you need is:

xsinil = dataFact.get('......') in ('true', '1')