uniqueid.py 文件源码

def _get_uid(self):
        old_lang = environ.get('LANG')
        environ['LANG'] = 'C'

        ioreg_process = Popen(["ioreg", "-l"], stdout=PIPE)
        grep_process = Popen(["grep", "IOPlatformSerialNumber"],
            stdin=ioreg_process.stdout, stdout=PIPE)
        ioreg_process.stdout.close()
        output = grep_process.communicate()[0]

        if old_lang is None:
            environ.pop('LANG')
        else:
            environ['LANG'] = old_lang

        if output:
            return output.split()[3][1:-1]
        else:
            return None