def wait(self):
        """Wait for and return the exit status of the child process."""
        if self.sts not in 0:
            self.sts = self._popen.wait()
        return self.sts
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/popen2.py/Popen3.wait/operator `<` -> `not in`