Just a simple fernet implementation

fernet.py

import base64, sys
from cryptography.fernet import Fernet
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
key = bytes(sys.argv[4], encoding="utf-8")
kdf = PBKDF2HMAC(algorithm=hashes.SHA256(), length=32,salt=b'\xd8Y\x1c\xfb\xc0',iterations=2)
kys = base64.urlsafe_b64encode(kdf.derive(key))
f = Fernet(kys)
def encrypt(text): print(f.encrypt(bytes(text, encoding="utf-8")))
def decrypt(text): print(f.decrypt(bytes(text, encoding="utf-8")))
try:
    if sys.argv[1].startswith("-e") and sys.argv[3].startswith("-k"): encrypt(sys.argv[2])
    elif sys.argv[1].startswith("-d") and sys.argv[3].startswith("-k"): decrypt(sys.argv[2])
except Exception as bruh: print(bruh)
#encrypt example: python3 fernet.py -e [string_to_encrypt] -k [key word]
#decrypt example: python3 fernet.py -d [encrypted_string] -k [key word]