Interprocess communication in Python

by

The multiprocessing library provides listeners and clients that wrap sockets and allow you to pass arbitrary python objects.

Your server could listen to receive python objects:

from multiprocessing.connection import Listener

address = ('localhost', 6000)     # family is deduced to be 'AF_INET'
listener = Listener(address, authkey=b'secret password')
conn = listener.accept()
print 'connection accepted from', listener.last_accepted
while True:
    msg = conn.recv()
    # do something with msg
    if msg == 'close':
        conn.close()
        break
listener.close()

Your client could send commands as objects:

from multiprocessing.connection import Client

address = ('localhost', 6000)
conn = Client(address, authkey=b'secret password')
conn.send('close')
# can also send arbitrary objects:
# conn.send(['a', 2.5, None, int, sum])
conn.close()

More Related Contents:

  1. On localhost, how do I pick a free port number?
  2. When source_address of python socket.create_connection is used? [closed]
  3. Retrieving the output of subprocess.call() [duplicate]
  4. Python socket not receiving without sending
  5. TypeError: a bytes-like object is required, not ‘str’
  6. Multiple pipes in subprocess
  7. subprocess readline hangs waiting for EOF
  8. Pipe character in Python
  9. link several Popen commands with pipes
  10. Multiprocessing – Pipe vs Queue
  11. Python Socket Flush
  12. How to connect to a remote Windows machine to execute commands using python?
  13. Why am I getting the error “connection refused” in Python? (Sockets)
  14. Read timeout using either urllib2 or any other http library
  15. Python subprocess: how to use pipes thrice? [duplicate]
  16. 104, ‘Connection reset by peer’ socket error, or When does closing a socket result in a RST rather than FIN?
  17. Python socket.accept nonblocking?
  18. real time subprocess.Popen via stdout and PIPE
  19. Force another program’s standard output to be unbuffered using Python
  20. socket.error:[errno 99] cannot assign requested address and namespace in python
  21. How to run ” ps cax | grep something ” in Python?
  22. Can I run a Python script as a service?
  23. Combining node.js and Python
  24. How to use socket in Python as a context manager?
  25. Sending a file over TCP sockets in Python
  26. How to make a simple multithreaded socket server in Python that remembers clients
  27. Pipe raw OpenCV images to FFmpeg
  28. Making moves w/ websockets and python / django ( / twisted? )
  29. Socket Programming Python: How to make sure entire message is received?
  30. How to close a socket left open by a killed program?

Leave a Comment