The modules described in this chapter provide mechanisms for different processes to communicate.
Some modules only work for two processes that are on the same machine, e.g. :mod:`signal` and :mod:`mmap`. Other modules support networking protocols that two or more processes can use to communicate across machines.
The list of modules described in this chapter is:
.. toctree:: socket.rst ssl.rst select.rst selectors.rst asyncio.rst asyncore.rst asynchat.rst signal.rst mmap.rst