python update binary object (override delivered Object properties)

[pierre38]

Hello,
I did many trials without success. I need to have flexibility in my Python code, so I use already .yaml configuration for deliverable scripts (generated executable from pyInstaller), but this is not enough.
I am trying to find out if it is possible to redefine some methods from a python wrapper script calling the executable binary script.

Below is the example:

wrap.py:

import os
# import invest or ??

def displayParam(self):
    print("overriden text")

Foo.displayParam = displayParam

os.system("/prj/mms_nvm/cad_prj/python/users/paolipie/python/py_workdev/create_deliverable/dist/invest/invest")

invest.py

import sys
from src.foo import Foo


def main(argv):
    foo = Foo()
    foo.displayParam()

# exec
if __name__ == "__main__":
    main(sys.argv[1:])

foo.py

import sys
import os
from pathlib import Path

# main
class Foo:
    def __init__(self):
        self.other = None

    def displayParam(self):
        print("default text")

When I execute the wrap.py:
> python wrap.py
Traceback (most recent call last):
File "wrap.py", line 7, in <module>
Foo.displayParam = displayParam
NameError: name 'Foo' is not defined


Can someone provide me some advice ?

thanks a lot,
Pierre