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POBidirectional flow between D3.js frontend and Python Backend? / Interactive graphs in a website
 

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    <p>So this is somewhat similar to</p> <p><a href="https://stackoverflow.com/questions/731470/whats-easiest-way-to-get-python-script-output-on-the-web">What&#39;s easiest way to get Python script output on the web?</a> and <a href="https://stackoverflow.com/questions/3354883/matplotlib-interactive-plot-on-a-web-server">Matplotlib: interactive plot on a web server</a></p> <p>but none of those used d3.js and I don't think they achieve the same level of interactive-ness.</p> <p>So I am a newcomer to d3.js and frankly have no clue where I should start in this instance.</p> <p>Project Flow:</p> <ol> <li>Ask user name on the front end. Send this to backend python</li> <li>get graph data (object + edges) for a depth of x where x is distance away from a starting node by Python calls to 3rd party website API</li> <li>run some machine learning on the data (python)</li> <li>display the graph + some numbers (maybe in the bottom right corner) in d3.js loop:</li> <li>Have an interactive d3.js graph so that if I click a node, it will redo the calculation with that as the starting node</li> <li>have it so that d3.js shows part of the text (first 10 chars?) of each node and then shows the full text once you mouse over.</li> </ol> <p>(7) Bonus updating embeddable picture? Like those profile signatures?</p> <p>Questions: How would I achieve this bidirectional communication? Where should I start? Is there a better way I can do this?</p> <p>Sidenote: I'm planning to do this project using Google App Engine, I don't know if that lets you use it as a 'vm' though.</p> <p>Thanks!</p> <p>Edit: This looks a lot like <a href="https://stackoverflow.com/questions/12497626/python-at-backend-js-at-frontend-integration">Python at backend JS at frontend integration</a>, but I don't know where to even start and I think they suggest more art-oriented tools as a result of his project.</p>
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