What is the current choice for doing RPC in Python?

Actually, I've done some work with Pyro and RPyC, but there is more RPC implementation than these two. Can we make a list of them?

Native Python-based protocols:

• PyRo4 (Python Remote Objects)
• RPyC (Remote Python Call)
• Circuits

RPC frameworks with a lot of underlying protocols:

• Spyne (see lightning talk)

JSON-RPC based frameworks:

• python-symmetric-jsonrpc
• rpcbd
• Ladon
• jsonrpc2-zeromq-python

SOAP:

• ZSI
• SOAPpy
• Ladon
• Spyne

XML-RPC based frameworks:

• XMLRPC, using the xmlrpclib and SimpleXMLRPCServer modules in the standard library.

Others:

• WAMP (RPC + PubSub, JSON + MsgPack)
• Twisted Spread
• ZMQRPC (ZeroMQ and BSON based)
• VPy (Versile Python) - AGPLv3
• zerorpc (Python or Node.js, msgpack + ZeroMQ)
• gRPC

XML-RPC is part of the Python standard library:

• Python 2: xmlrpclib and SimpleXMLRPCServer
• Python 3: xmlrpc (both client and server)