def prepend_dict_key(orig, prep_text, camel_case=False):
    """
    Return a new dictionary for which every key is prepended with prep_text.
    """
    if camel_case:
        return dict(
            (prep_text + str(k).title(), v) for k, v in orig.items()
        )
    else:
        return dict((prep_text + str(k), v) for k, v in orig.items())