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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def generate_uuid(basedata=None):
 """ Provides a _random_ UUID with no input, or a UUID4-format MD5 checksum of any input data provided """

    if basedata is None:
        return str(uuid.uuid4())
    elif isinstance(basedata, str):
        checksum = hashlib.md5(basedata).hexdigest()
        return '%8s-%4s-%4s-%4s-%12s' % (
            checksum[0:8], checksum[8:12], checksum[12:16], checksum[16:20], checksum[20:32])