class A(Exception):
def __init__(self, n):
self.test = n
(1) :
class B(A):
def __init__(self, n):
#A.__init__(self, n)
super(B, self).__init__(n)
self.testb = n
try:
raise B, B(1)
except A, a:
print dir(a)
=============================
(2):
class B(object):
pass
class C(B):
pass
class D(C):
pass
for c in [B, C, D]:
try:
raise c()
except D:
print "D"
except C:
print "C"
except B:
print "B"
================================
I want to use new style class, how to do that?
If I can't, Why?