Config Module

import configparser
import os
import sys


def resource_path(relative_path):
    """
    Get absolute path to resource.

    PyInstaller unpacks data into a temporary folder and stores the path in _MEIPASS.
    Use this method to get the _MEIPASS directory in packed-mode and use the local directory in unpacked mode.

    :param relative_path: The relative path to the configuration file (relative to the package folder)
    """
    if hasattr(sys, '_MEIPASS'):
        return os.path.join(sys._MEIPASS, relative_path)

    return os.path.join(os.path.abspath('.'), relative_path)


def read_config(config_file):
    """
    Read values from a configuration file (declared in a basic configuration language).

    :param config_file: The configuration file in the package root folder
    :return: The configuration file content
    """
    parser = configparser.ConfigParser(interpolation=configparser.ExtendedInterpolation())

    try:
        with open(config_file, encoding='UTF-8') as f:
            parser.read_file(f)
    except IOError:
        print('Error: Could not read from config file: "{0}"'.format(config_file))
        sys.exit(1)

    return parser