Converts "CamelCaseHere" to "camel case here".

def normal_case(name):
    """Converts "CamelCaseHere" to "camel case here"."""
    s1 = re.sub(r'(.)([A-Z][a-z]+)', r'\1 \2', name)
    return re.sub(r'([a-z0-9])([A-Z])', r'\1 \2', s1).lower()