{'A': {'B': 'blalbalb'}}

from xml.dom.minidom import parse
def Test(dom):
    obj={}
    for node in dom.childNodes:
        if node.nodeType==node.TEXT_NODE:
            return node.data
        if node.nodeType==node.ELEMENT_NODE:
            obj[node.nodeName]=Test(node)
    return obj
print(Test(parse(open(r'c:\1.txt'))))

>>> xml1 = "<a><b>\n<v>sad</v></b></a>"
>>> parsed = parseString(xml1)
>>> parsed.childNodes
[<DOM Element: a at 0xc1a788>]
>>> parsed.childNodes[0].childNodes
[<DOM Element: b at 0xc1a800>]
>>> parsed.childNodes[0].childNodes[0].childNodes
[<DOM Text node "
">, <DOM Element: v at 0xc1a8a0>]
>>>

from xml.dom.minidom import parse
def Test(dom):
    obj={}
    for node in dom.childNodes:
        if node.nodeType==node.TEXT_NODE:
            for child in node.parentNode.childNodes:
                if child.nodeType==child.ELEMENT_NODE:
                    break
            else:
                return node.data
        if node.nodeType==node.ELEMENT_NODE:
            obj[node.nodeName]=Test(node)
    return obj
print(Test(parse(open(r'c:\1.txt'))))