How could i change the python interpreter path of os.system()

[DeaD_EyE]

Don't try to modify your environment, instead modify your program.

import sys
from subprocess import Popen


proc = Popen([sys.executable, "your_script.py"])
return_value = proc.wait()  # this call blocks until the program has been finished

Don't use os.system, it's deprecated since years.