@depends('cx_Oracle', fallback_function=_cx_oracle_req)
def client_version():
 return '.'.join((str(x) for x in cx_Oracle.clientversion()))

@ depends ( 'cx_Oracle' , fallback_function = _cx_oracle_req ) def client_version ( ) : return '.' . join ( ( str ( x ) for x in cx_Oracle . clientversion ( ) ) )
oracle client version cli example: .