javascript - Not able to read external file using D3.js -
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- how serve static files in flask 12 answers
i not able read data csv or json file using d3js in flask application.
here code of:
html:
<head> <meta charset="utf-8"> <title>d3js</title> <script src="//d3js.org/d3.v3.min.js" charset="utf-8"></script> </head> <body> <script> d3.csv("../data.csv", function (data) { console.log(data); }); </script> </body> flask app.py code:
from flask import flask, render_template app = flask(__name__) @app.route('/') def hello_world(): return render_template('historgram.html') if __name__ == '__main__': app.run(debug=true) i receiving file not found error. failed load resource: server responded status of 404 (not found)
if data.csv static data, have move file directory static/ accessible flask server , access via
d3.csv("/static/data.csv", function (data) { console.log(data); }); 
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