def __virtual__():
    # TODO: Determine minimal version we want to support. VPC requires > 2.8.0.
    required_boto_version = '2.0.0'
    if not HAS_BOTO:
        return False
    elif _LooseVersion(boto.__version__) < _LooseVersion(required_boto_version):
        return False
    else:
        return True
Only load if boto libraries exist and if boto libraries are greater than
dataset/ETHPy150Open saltstack/salt/salt/utils/boto.py/__virtual__