def removeChild(self, child):
        if not isinstance(child, Node):
            raise TypeError("expected Node instance")
        if child in self.childNodes:
            self.childNodes.remove(child)
            child.parentNode = None
        return child
Test multiple units.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/web/microdom.py/Node.removeChild--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/tests/regressiontests/utils/timesince.py/TimesinceTests.test_multiple_units