I’m writing a code protection program and I face with a really annoying bug. To execute code I need to decrypt it and I doing it in a separate file where it decrypts and executes. With one file projects everything works just fine, but with multi file projects I got error module 'include' has no attribute 'foo'.

GitHub repo

It happens cuz code executes in script_12529881.py but include.py imports and I need to execute it there but if I use exec it gonna be unsafe cuz hackers can just replace with print and get source code.
File hierarchy:

│   include.py
│   main.py
│
└───PySheild
        script_12529881.py

Encrypted file:

from PySheild.script_12529881 import PySheild
PySheild(b'xx')

File for decrypt:

class PySheild:
    def __init__(self, code):
        self.code = code
        self.farnetKey = b''
        self.DeObfuscate()
    def DeObfuscate(self):
        self.DecryptFernet()
        self.BaseDecrypt()
        exec(self.code)

Method that works but unsafe:

exec(PySheild(b'xv').Exec)# Exec returns code

Will be glad for any help