How to get value of parent class

[Jean-Pierre Bergamin]

Hello

I have the following class structure:


class MyServer:

x= 0

class MyHandler(SocketServer.StreamRequestHandler):
def handle(self):
if x: # <---- How to get the X from the parent class?
# Or how to pass a value to this class anyway?
do_something()
else:
do_something_else()

def start_server(self):
s = SocketServer.TCPServer(('', 1234), self.MyHandler)
s.server_forevert()

server = MyServer
server.x = 10
server.start_server()



How is it possible to get the value of x from the class MyServer within the
MyHandler class?
The object of self.MyHandler is instantiated everytine the
SocketServer.TCPServer calls handle, so it's not possible to create an
instance of MyHandler an pass it the value.

Or ist there any other possibility to pass the class MyHandler some values?


Thanks in advance.


James

 

[Joe Mason]

Hello

I have the following class structure:


class MyServer:

x= 0

class MyHandler(SocketServer.StreamRequestHandler):
def handle(self):
if x: # <---- How to get the X from the parent class?
# Or how to pass a value to this class anyway?
do_something()

Just say "MyServer.x".

Joe

 

[Jean-Pierre Bergamin]

Just say "MyServer.x".

Hmmm. The TCPServer class instanciates a new
SocketServer.StreamRequestHandler object everytime it uses it. Therefore
it's not in the context of the MyServer class. That's why it didn't work.

It's like in this example:

class A:
x = 0

class B:
def get_x(self):
print A.x


a = A()
a.x = 10
b = a.B()
b.get_x() # prints out 0 (not 10 as someone might expect)


As a workaroud it did it this way:

def start_server(self):
handler = self.MyHandler
handler.x = self.x
s = SocketServer.TCPServer(('', 1234), handler)
s.server_forever()


But thanks for the hint.


James