from flask import Flask, render_template, request, redirect, url_for app = Flask(__name__, static_folder='') bufferJson = [''] @app.route('/') def index(): py2htmlstr = 'py2html test str' return render_template('play.html', py2htmlstr=py2htmlstr) @app.route('/datapage') def datapage(): return bufferJson @app.route('/', methods=['POST']) def getData(): if request.method == 'POST': print("POST") print(request.json) return redirect(url_for('datapage')) if __name__ == '__main__': app.debug = True app.run() app.run(debug=True)