Graph builder

.gitignore

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+*.out
+*.out_py3
+*.out_py36
+*.pyc
+*.pyo
+v4-cokapi/feedback/cokapi-feedback.db
+coding-the-matrix/
+node_modules/
+google-analytics.txt
+webfaction-deploy.sh
+v3/opt_togetherjs/*.json
+# for regression tests
+*.out.png
+*.diff.png
+*.fail.png
+v3/opt_togetherjs/ipstack-geolocation
+
+v4-cokapi/backends/javascript/node-v6.0.0-darwin-x64/
+
+# this .gz file is too big to fit into a github repo
+v4-cokapi/backends/java/jdk-8u20-linux-x64.tar.gz

LICENSE.txt

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+Copyright (C) Philip J. Guo (philip@pgbovine.net)
+
+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.
+

README.md

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+Python Tutor -- http://pythontutor.com/ -- helps people overcome a fundamental barrier to learning programming: understanding what happens as the computer executes each line of a program's source code. Using this tool, you can write Python, Java, JavaScript, TypeScript, Ruby, C, and C++ programs in your Web browser and visualize what the computer is doing step-by-step as it executes those programs.
+
+This tool was created by [Philip Guo](http://pgbovine.net/) in January 2010. [See project history](history.txt).
+
+[List of unsupported features and known bugs](https://github.com/pgbovine/OnlinePythonTutor/blob/master/unsupported-features.md)
+
+The latest development version of the code is in [v5-unity](v5-unity/),
+although lots of legacy documentation still resides in [v3](v3/).
+
+
+### Quick Start
+
+BY FAR the most preferred way to use Python Tutor is via the official website, since it contains the latest updates: http://pythontutor.com/
+
+You can use [iframe embedding](v3/docs/embedding-HOWTO.md) to easily embed visualizations on your webpage.
+
+If you want to run locally on your own computer, to run Python visualizations try:
+
+```
+pip install bottle # make sure the bottle webserver (http://bottlepy.org/) is installed
+cd OnlinePythonTutor/v5-unity/
+python bottle_server.py
+```
+
+You should see the visualizer at: http://localhost:8003/visualize.html
+
+... and the live programming environment at: http://localhost:8003/live.html 
+
+However, it can be hard to run your own visualizer locally for
+non-Python languages, since there are complex dependencies in v4-cokapi/ that
+I haven't yet cleanly packaged up. By default, the local version you run will
+*call my own server to run the non-Python backends*, so please be mindful of
+your bandwidth usage.
+
+For further directions, see [Overview for Developers](v3/docs/developer-overview.md) or explore the [rest of the docs](v3/docs/).
+
+
+### Acknowledgments
+
+For code or security contributions:
+- Irene Chen - experimental holistic visualization mode - v3/js/holistic.js
+- John DeNero - helping with the official Python 3 port, bug fixes galore
+- Mark Liffiton - localStorage bug fix
+- Chris Meyers - custom visualizations such as v3/matrix.py and v3/htmlFrame.py
+- Brad Miller - adding pop-up question dialogs to visualizations, other bug fixes
+- David Pritchard and Will Gwozdz - Java visualizer and other frontend enhancements
+- Peter Robinson - v3/make_visualizations.py
+- Peter Wentworth and his students - working on the original Python 3 fork circa 2010-2011
+- Security tips and vulnerability reports: Aaron E. (https://arinerron.com), Chris Horne (https://github.com/lahwran), Joshua Landau (joshua@landau.ws), David Wyde (https://davidwyde.com/)
+
+For user testing and feedback from instructors' perspectives:
+- Ned Batchelder
+- Jennifer Campbell
+- John Dalbey
+- John DeNero
+- Fredo Durand
+- Michael Ernst
+- David Evans
+- Paul Gries
+- Mark Guzdial
+- Adam Hartz
+- Sean Lip
+- Fernando Perez
+- Tomas Lozano-Perez
+- Bertram Ludaescher
+- Brad Miller
+- Rob Miller
+- Peter Norvig
+- Andrew Petersen
+- David Pritchard
+- Suzanne Rivoire
+- Guido van Rossum
+- Peter Wentworth
+- David Wilkins
+
+... and many, many more!