class  myexception(Exception):     def __init__(self,value):         self.value = value         self.message ='myexception error' def say():     #name='FreeMan'     try:         raise myexception('test')         '''         #print name         #print 'hello world!'     except NameError as e :         print Exception,e         print e.message     except ArithmeticError as a :         print a.message     '''     except Exception,e:         print e.message     #   print 'unknow yichang'     else:        print "Has name"     finally:        print 'get to finally' say()