Adding dynamic interpreter selector and real script path finding

main.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import os
 import json
 
@@ -5,10 +7,10 @@ import requests
 
 import config
 
-
 DOCKER_COMPOSE_PATH = config.portainer_compose_dir + '/{}/docker-compose.yml'
-BASH_COMPANION_SCRIPT = os.getcwd() + '/docker_updater.sh'
-REPO_UPDATER_SCRIPT = os.getcwd() + '/update_repos.sh'
+SCRIPT_DIR = os.path.dirname(__file__)
+BASH_COMPANION_SCRIPT = f'{SCRIPT_DIR}/docker_updater.sh'
+REPO_UPDATER_SCRIPT = f'{SCRIPT_DIR}/update_repos.sh'
 
 
 class PortainerClient: