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An API for parsing and creating MAEC content.

Project description

A Python library for parsing, manipulating, and generating MAEC content.


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A primary goal of the python-maec library is to remain faithful to both the MAEC standard and to customary Python practices. There are places where these will conflict, and the goal is to make the library intuitive both to those familiar with the XML schemas (but less familiar with Python) and also to experienced Python developers who want to add MAEC support to their programs.

There are currently two levels of APIs for dealing with MAEC content:

  • A low-level API is provided by auto-generated XML Schema - Python class bindings. These bindings were generated using generateDS. With these, any MAEC content can be parsed from or written to XML, but requires a bit more knowledge of the actual MAEC schemas. These “binding classes” are all located in the maec.bindings package.
  • A higher-level API consisting of manually designed Python classes. These “native classes” are intended to behave more like Python programmers would expect. As they are designed manually, they currently do not support the entire MAEC standard, but rather those object types we expect are used most frequently. These “native classes” also support exporting their content as Python dictionaries and lists, which can easily be converted to JSON. Importing from JSON is also supported.


The python-maec library is tested and written against python 2.7.x. Compatibility with other python versions is neither guaranteed nor implied.


Releases of the python-maec library will be given version numbers of the form major.minor.update.revision, where major, minor, and update correspond to the MAEC version being supported. The revision number is used to indicate new versions of the python-maec library itself.


The maec package depends on the following Python libraries:

  • lxml
  • python-cybox
  • setuptools (only if installing using

For Windows installers of the above libraries, we recommend looking here: python-cybox can be found at

To build lxml on Ubuntu, you will need the following packages from the Ubuntu package repository:

  • python-dev
  • libxml2-dev
  • libxslt1-dev
  • zlib1g-dev

For more information about installing lxml, see


Bug reports and feature requests are welcome and encouraged. Pull requests are especially appreciated. Feel free to use the issue tracker on GitHub or send an email directly to

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