Update app.py

app.py

@@ -3,6 +3,8 @@
 import os
 import base64
 from cryptography.fernet import Fernet 
+import sys, subprocess
+subprocess.check_call([sys.executable, "-m", "pip", "install", "websockets==12.0"])
 
 # Replace this with the ciphertext from your local encryption step:
 ENCRYPTED_CODE_B64 = """