Installation ============ .. note:: The STIX 2 validator requires Python 2.7 or 3.4+. The easiest way to install the STIX 2 validator is with pip: :: $ pip install stix2-validator Note that if you instead install it by cloning or downloading the repository, you will need to set up the submodules before you install it: :: $ git clone https://github.com/oasis-open/cti-stix-validator.git $ cd cti-stix-validator/ $ git submodule update --init --recursive $ python setup.py install