class Base(object):
def __init__(self, *args, **kwds):
self.autosetup(self.__class__, [], **kwds)
def setup(self, **kwds):
pass
def autosetup(self, cls, called, **kwds):
for base in cls.__bases__:
try:
b = base.setup
except AttributeError:
pass
else:
if b not in called:
called = self.autosetup(base, called, **kwds)
cls.setup(self, **kwds)
called.append(cls.setup)
return called
# Sample Usage
class A(Base):
def setup(self, foo, **kwds):
print "A",foo
class B(Base):
def setup(self, blah, **kwds):
print "B", blah
class C(B):
def setup(self, blech, **kwds):
print "C", blech
class D(A, C):
def setup(self, frog, **kwds):
print "D", frog
class E(C):
pass
class F(D, E):
def setup(self, toad, foo, frog, **kwds):
print "F", foo, frog, toad
x = F(foo=1, blah=2, blech=3, frog=4, toad=5)
