opencv/modules/python/package/cv2/load_config_py3.py

# flake8: noqa
import os
import sys

if sys.version_info[:2] >= (3, 0):
    def exec_file_wrapper(fpath, g_vars, l_vars):
        with open(fpath) as f:
            code = compile(f.read(), os.path.basename(fpath), 'exec')
            exec(code, g_vars, l_vars)