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opengeode 0.97

A tiny, free SDL editor for TASTE

Latest Version: 1.5.2


OpenGEODE is a tiny open-source SDL editor that is developed for the purpose of providing an easy to use and free state machine editor and Ada code generator to the TASTE toolchain from the European Space Agency, running in combination with ESA’s ASN.1 “Space Certifiable” ASN.1 compiler.

SDL is the Specification and Description Language (Z100 standard from ITU-T).

This is NOT related to the graphical Simple DirectMedia Layer libraries!

Visit for more information.



There are three majors dependencies for OpenGEODE:

  • Pyside (the Qt bindings for Python) and the ANTLR runtime to be
  • Python ANTLR Runtime
  • PyGraphviz

If you use pip to install OpenGEODE, these dependencies should be installed automatically. However, note that installing PySide from pip requires some work and is not straightforward.

If you are using a Linux Debian-based distribution (including Ubuntu), I would recommended to install PySide using your package manager: You should also install pygraphviz using the same method, for convenience.

$ sudo apt-get install python-pyside python-pygraphviz

And to install pip:

$ sudo apt-get install pip

The Python 2.7 ANTLR 3.1.3 runtime is not part of Debian packages. Install it with pip (or download and install manually the package):

$ pip install antlr_python_runtime

On Windows:

You need to download and install Python, Pyside, and pip (binaries are available on respective websites)

On FreeBSD:

PySide is available through the ports. You can also use easy_install to install it. Use pip to install the ANTLR runtime (see above)

Information and contact

OpenGEODE is part of the TASTE project.

Find more information and download at

OpenGEODE is developed and maintained by Maxime Perrotin maxime (dot) perrotin (at) esa (dot) int

The background pattern was downloaded from

Developer documentation is provided for the moment in docstrings in the Python modules.

The ASN.1 compiler (ASN1Scc) that OpenGEODE is based on was developed by George Mamais and Thanassis Tsiodras for the European Space Agency. Information at


License is LGPL (see file LICENSE)


0.97 (07/12/2013)
  • added support for default value when declaring a variable e.g. DCL myVar myType ::= { x 5, y 2 }; default value must be a ground expression
File Type Py Version Uploaded on Size
opengeode-0.97.tar.gz (md5) Source 2013-12-07 1MB