installapplications.py 文件源码

def checkreceipt(packageid):
    try:
        cmd = ['/usr/sbin/pkgutil', '--pkg-info-plist', packageid]
        proc = subprocess.Popen(cmd, stdin=subprocess.PIPE,
                                stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        output = proc.communicate()
        receiptout = output[0]
        if receiptout:
            plist = plistlib.readPlistFromString(receiptout)
            version = plist['pkg-version']
        else:
            version = '0.0.0.0.0'
        return version
    except Exception:
        version = '0.0.0.0.0'
        return version