def _execChild(self, path, settingUID, uid, gid,
                   executable, args, environment):
        if path:
            os.chdir(path)
        # set the UID before I actually exec the process
        if settingUID:
            switchUID(uid, gid)
        os.execvpe(executable, args, environment)
The exec() which is done in the forked child.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/internet/process.py/_BaseProcess._execChild