Function _get_child_or_insert

lab/cust-elm-classes/main.py:62–67

(element, tag, idx)

    return child

def _get_child_or_insert(element, tag, idx):
    child = _child(element, tag)
    if child is None:
        child = _Element(tag)
        element.insert(idx, child)
    return child

def _nsmap(*prefixes):
    """