_subprocess_runner.py 文件源码

def popen(self, std_in=None, environ=None):
        self.__verify_command()

        if self.dry_run:
            self.__stdout = self._DRY_RUN_OUTPUT
            self.__stderr = self._DRY_RUN_OUTPUT
            self.__returncode = 0

            self.__debug_logging_method("dry-run: {}".format(self.command))

            return subprocess.CompletedProcess(
                args=[], returncode=self.__returncode,
                stdout=self.__stdout, stderr=self.__stderr)

        self.__debug_print_command()

        try:
            process = subprocess.Popen(
                self.command, env=self.__get_env(environ), shell=True,
                stdin=std_in, stdout=PIPE, stderr=PIPE)
        except TypeError:
            process = subprocess.Popen(
                self.command, shell=True,
                stdin=std_in, stdout=PIPE, stderr=PIPE)

        return process