Update app.py

app.py

@@ -1,15 +1,15 @@
-from flask import Flask, request, jsonify, redirect, url_for, render_template
+from flask import Flask, request, jsonify, redirect, url_for, render_template, send_from_directory
 import os
 import sqlite3
 from datetime import datetime
 import pytz
-import matplotlib.pyplot as plt
 import io
 import base64
 from dotenv import load_dotenv
 import requests
 import json
 import logging
+import uuid