What Python SOAP Client Libraries Are Available, and Where Can I Find Their Documentation?

In the realm of SOAP client libraries for Python, various options exist, each catering to specific requirements. For those new to both SOAP and Python, the task of selecting the appropriate library can be daunting. Here's a comprehensive guide to the available SOAP client libraries and their documentation.

Legacy Libraries

SOAPy was once widely recognized as the leading SOAP library, but its development has ceased. Consequently, it is not compatible with Python versions 2.5 and above.

ZSI is characterized by its complexity and arduous learning curve. It includes a distinct module called SOAPpy, which differs from the SOAPy library mentioned earlier.

Modern Libraries

SUDS excels in its Pythonic nature, simplifying the creation of WSDL-consuming SOAP clients. However, setting up SOAP servers with SUDS can be more challenging. It is not compatible with Python3, for which SUDS-py3 is the preferred alternative.

SUDS-py3 is the Python3 counterpart of SUDS, providing the same functionality for users of newer Python versions.

spyne offers ease in server creation, while client implementation is slightly more involved. Its documentation may leave some users seeking more guidance.

ladon resembles soaplib in its server creation approach, utilizing a decorator-based method. It facilitates the simultaneous exposure of multiple interfaces without requiring additional user code.

pysimplesoap is a lightweight option suitable for both client and server tasks. It seamlessly integrates with the web2py framework.

Other noteworthy libraries include SOAPpy (distinct from the legacy SOAPy mentioned earlier), which was actively maintained until 2011, and soaplib, a library specifically designed for creating and invoking SOAP web services. Additionally, osa is a high-performance SOAP client library characterized by its simplicity and ease of use.

For up-to-date information on actively maintained modules and libraries related to SOAP and other webservice types in Python, refer to the Python WebServices page.