Slave to master auto linking.

Sun Nov 13 21:15:05 EST 2011

2011年11月14日 Богун Дмитрий <vugluskr at vugluskr.org.ua>:
> m = master()
> s = m.slave()
> s.master is m
>
Can you simply have m.slave() pass a parameter to the slave's constructor?
class Master(object):
 class Slave(object):
 def __init__(self,master):
 self.master=master
 print 'Slave.__init__: self.master: ', self.master
 def slave(self):
 return self.Slave(self)
Alternatively, you don't have to nest the classes at all:
class Slave(object):
 def __init__(self,master):
 self.master=master
 print 'Slave.__init__: self.master: ', self.master
class Master(object):
 def slave(self):
 return Slave(self)
By passing 'self' to the Slave() constructor, I give the slave a
chance to keep a reference to its own master.
Chris Angelico