Why is lxml.etree.iterparse() eating up all my memory?

Question

This eventually consumes all my available memory and then the process is killed. I\'ve tried changing the tag from schedule to \'smaller\' tags but that didn\'

Answer 1

This worked really well for me:

def destroy_tree(tree):
    root = tree.getroot()

    node_tracker = {root: [0, None]}

    for node in root.iterdescendants():
        parent = node.getparent()
        node_tracker[node] = [node_tracker[parent][0] + 1, parent]

    node_tracker = sorted([(depth, parent, child) for child, (depth, parent)
                           in node_tracker.items()], key=lambda x: x[0], reverse=True)

    for _, parent, child in node_tracker:
        if parent is None:
            break
        parent.remove(child)

    del tree