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A transport agnostic sync/async RPC library that focuses on exposing services with a well-defined API using popular protocols.


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If you like and use Spyne, star it on Github!


Spyne aims to save the protocol implementers the hassle of implementing their own remote procedure call api and the application programmers the hassle of jumping through hoops just to expose their services using multiple protocols and transports.

In other words, Spyne is a framework for building distributed solutions that strictly follow the MVC pattern, where Model = spyne.model, View = spyne.protocol and Controller = user code.

Spyne comes with the implementations of popular transport, protocol and interface document standards along with a well-defined API that lets you build on existing functionality.

The following are the primary sources of information about spyne:


Spyne source distribution is a collection of highly decoupled components, which makes it a bit difficult to put a simple list of requirements, as literally everything except pytz is optional.

Python version

Spyne 2.13 supports Python 2.7, 3.6, 3.7, 3.8, 3.9 and 3.10.


Additionally the following software packages are needed for various subsystems of Spyne:

  • A Wsgi server of your choice is needed to wrap spyne.server.wsgi.WsgiApplication
  • lxml>=3.2.5 is needed for any xml-related protocol.
  • lxml>=3.4.1 is needed for any html-related protocol.
  • SQLAlchemy is needed for spyne.model.complex.TTableModel.
  • pyzmq is needed for spyne.client.zeromq.ZeroMQClient and spyne.server.zeromq.ZeroMQServer.
  • Werkzeug is needed for using spyne.protocol.http.HttpRpc under a wsgi transport.
  • PyParsing is needed for using HttpPattern's with spyne.protocol.http.HttpRpc.
  • Twisted is needed for anything in spyne.server.twisted and spyne.client.twisted.
  • Django (tested with 1.8 and up) is needed for anything in spyne.server.django.
  • Pyramid is needed for spyne.server.pyramid.PyramidApplication.
  • msgpack>=1.0.0 is needed for spyne.protocol.msgpack.
  • PyYaml is needed for spyne.protocol.yaml.
  • simplejson is used when found for spyne.protocol.json.

You are advised to add these as requirements to your own projects, as these are only optional dependencies of Spyne, thus not handled in its setup script.


You first need to have package manager (pip, easy_install) installed. Spyne ships with a setuptools bootstrapper, so if refuses to run because it can't find setuptools, do:


You can add append --user to get it installed with $HOME/.local as prefix.

You can get spyne via pypi:

easy_install [--user] spyne

or you can clone the latest master tree from Github:

git clone git://

To install from source distribution, you can run the setup script as usual:

python install [--user]

If you want to make any changes to the Spyne code, just use

python develop [--user]

so that you can painlessly test your patches.

Finally, to run the tests, you need to first install every single library that Spyne integrates with, along with additional packages like pytest or tox that are only needed when running Spyne testsuite. An up-to-date list is maintained in the requirements/ directory, in separate files for both Python 2.7 and >=3.6. To install everything, run:

pip install [--user] -r requirements/test_requirements.txt

If you are still stuck on Python 2.x however, you should use:

pip install [--user] -r requirements/test_requirements_py27.txt

Assuming all dependencies are installed without any issues, the following command will run the whole test suite:

python test

Spyne's test harness has evolved a lot in the 10+ years the project has been active. It has 3 main stages: Traditional unit tests, tests that perform end-to-end testing by starting actual daemons that listen on real TCP sockets on hard-coded ports, and finally Django tests that are managed by tox. Naively running pytest etc in the root directory will fail as their auto-discovery mechanism was not implemented with Spyne's requirements in mind.

Getting Support

Official support channels are as follows:

Please don't use the issue tracker for asking questions. It's a database that holds the most important information for the project, so we must avoid cluttering it as much as possible.


If you feel like helping out, see the CONTRIBUTING.rst file in the Spyne source distribution for starting points and general guidelines.