omniORBpy
- The Python version of the OmniORB CORBA Object Request Broker. [Open Source, LGPL]
- http://omniorb.sourceforge.net/

OSE
- Generic application framework suitable for constructing general purpose applications, distributed systems and web based services. [Open Source, QPL]
- http://ose.sourceforge.net/

XML-RPC for Python
- An XML-RPC library from PythonWare, which made its way into Python 2.2. [Open Source, BSD-like]
- http://www.pythonware.com/products/xmlrpc/index.htm

Python Web Services
- Sourceforge project that hosts the SOAP implementations SOAP.py and ZSI (Zolera SOAP Infrastructure). [Open Source, Python license]
- http://sourceforge.net/projects/pywebsvcs

SOAP for Python
- Python implementation of the SOAP 1.1 protocol. [Open Source, BSD-like]
- http://www.pythonware.com/products/soap/index.htm

Fast Python Xmlrpc Library
- Fast implementation of the xmlrpc spec for Python with support for both blocking and non-blocking clients and servers on Windows and POSIX platforms. [Open Source, LGPL]
- http://sourceforge.net/projects/py-xmlrpc/

ORBit-Python
- Python bindings for the ORBit CORBA Object Request Broker. [Open Source, LGPL]
- http://sourceforge.net/projects/orbit-python/

PYRO - Python Remote Objects
- Python Remote Objects is a distributed object system written entirely in Python, and for use in Python only. It is small, simple and free. [Open Source, LGPL]
- http://pyro.sourceforge.net/