Function to convert json string or python dict into ObjectWrapper

Ignition
16

Forcing each to the expected type while traversing makes a deep copy:

def sanitize_tree(element):
    if hasattr(element, '__iter__'):
        if hasattr(element, 'keys'):
            return dict((k, sanitize_tree(element[k])) for k in element.keys())
        else:
            return list(sanitize_tree(x) for x in element)
    return element

EDIT: Got rid of the unnecessary zip() and used only one keys() iterator instead of two.

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