score:4
you don't need (or want) to write anything to a file here. you can create the json and return it from a flask method:
from flask import flask, response
@app.route('/getmyjson')
def getmyjson():
json = dataframe.to_json(orient='records', date_format='iso')
response = response(response=json, status=200, mimetype="application/json")
return(response)
the d3
then becomes:
d3.json("/getmyjson", function (error, data) {
// ...
// operations with those data
// ...
}
Source: stackoverflow.com
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