Python Multiprocessing Listener 0.0.0.0 Windows文档

Question

In the Python 2.7.5 documentation on multiprocessing.connection.Listener ( link ), it states that

Note If an address of '0.0.0.0' is used, the address will not be a connectable end point on Windows. If you require a connectable end-point, you should use '127.0.0.1'.

What precisely does this mean, in the context of:

• I have tested the Client ( conn=Client(('localhost', port)) ) and Listener ( listener=Listener(('0.0.0.0', port)) ) on the same machine and communication works.
• I have tested it with client and listener on different machines (where the listener was created with 0.0.0.0 , and the client was given the IP address of the listener machine) and communication works.

Answer 1

According to the discussion for issue 3270 , that text was added to the documentation merely to indicate that the specific address 0.0.0.0 could not be used as a connectable end-point , as it might be used from a client. As such, @Blckknght's comment above was pretty much correct.

The note was added to the documentation here .