======================================= LEGAL ======================================= This code is released under an MIT license: Copyright (c) 2008 Chad W. L. Whitacre Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. The code for generating the heatmap images was originally ported from Ruby (under the MIT license): http://blog.corunet.com/english/the-definitive-heatmap And in the interest of full disclosure, you should know that this software incorporates code that was ported from Google's obfuscated JavaScript. This code is in the gmerc.py module under __/lib/python/site-packages/. Technically speaking this is almost certainly a copyright infringement, but the code in question is less than the "15-lines" rule of thumb often employed in matters of code borrowing.