def rax_slugify(value):
 return ('rax_%s' % re.sub('[^\\w-]', '_', value).lower().lstrip('_'))

def rax_slugify ( value ) : return ( 'rax_%s' % re . sub ( '[^\\w-]' , '_' , value ) . lower ( ) . lstrip ( '_' ) )
prepend a key with rax_ and normalize the key name .