_version.py 文件源码

def __call__(self, *args):
        command = "{cmd} {args}".format(cmd=self._command,
                                        args=subprocess.list2cmdline(args))
        output = subprocess.check_output(command,
                                         shell=self._shell,
                                         cwd=self._cwd,
                                         stderr=subprocess.STDOUT,
                                         universal_newlines=True)
        return self._yield_output(output)