If you don't already have a reliable Python installation, and know how to wield it, I recommend downloading and installing Anaconda.
Get this repo with git or by downloading the ZIP file, and enter that directory.
Make and enter a virtual environment:
conda create -n seisplot python=3.4 source activate seisplot
Install some more dependencies:
conda install -c obspy obspy conda install nose conda install pyyaml
Edit config.yaml to meet your requirements.
Run the script from the command line, for example:
python seisplot.py </path/to/infile.segy> --config config.yaml --out /path/to/result.pdf
