Update app.py

app.py

@@ -12,6 +12,7 @@ os.system("python -m pip install typer==0.4.1")
 os.system("python -m pip install pydantic==1.9.2")
 os.system("python -m pip install matplotlib==3.4.3")
 os.system("python -m pip install Flask")
+os.system("python -m pip install sty")
 
 from flask import Flask, render_template, request, Response, send_file, jsonify
 import hashlib