'List available zones for deployment
:rtype: ``list`` of :class:`NodeLocation`'

def list_locations(self):

    result = self.connection.request('/datacenter/zone/').object
    locations = []
    for value in result.get('data', []):
        location = NodeLocation(id=value.get('id'), name=value.get('name'), country='US', driver=self)
        locations.append(location)
    return locations
