Fix deprecated werkzeug import

certifi==2019.3.9

babel==2.7.0

flask-babel==0.12.2

flask-babel==1.0.0

flask==1.0.2

idna==2.8

jinja2==2.10.1

    from html import escape

from datetime import datetime, timedelta

from time import time

from werkzeug.contrib.fixers import ProxyFix

from werkzeug.middleware.proxy_fix import ProxyFix

from flask import (

    Flask, request, render_template, url_for, Response, make_response,

    redirect, send_from_directory