Passing parameters to a cli using exec in python

Question

I have the following situation.

I have a cli made in python in another folder and I have a function that receives some parameters and needs to be passed to the cli through an exec.

Estrutura de pastas -execs -fil1e.py main.py

I tried to do it that way and it didn't work:

My main file

import sys

n = sys.argv [0]
stream = open ("execs / file1.py", n)
read_file = stream.read ()
exec(read_file)