import os
from gevent import monkey
from gevent.pywsgi import WSGIServer
from flask import Flask

app = Flask(__name__)

@app.route('/plot/index')
def index():
    return 'Hello, World!'

if __name__ == "__main__":
    monkey.patch_all()
    http_server = WSGIServer(('0.0.0.0', 5000), app)
    http_server.serve_forever()