how to read multipart/form-data in flask

You are sending form data as key value pairs Try this:

import json
ex = json.loads(request.form.get('ex'))
print ex

You can use request.form.to_dict() to get result into dictionary form.

Or you can use something like this:

from werkzeug.datastructures import ImmutableMultiDict data = dict(request.form) print data