Question

我正在尝试从以root身份运行的python systemd服务启动消息框。

    body { 
        margin: 0;
    }
    .jumbotron{
        align-items:center;
        display:flex;
        background-image:url('https://static.pexels.com/photos/392018/pexels-photo-392018.jpeg');
        background-size:cover;
        height:450px;
        color:white;
        height: 50vh;
    }
    * {
        box-sizing: border-box;
    }
    .columns {
        float: left;
        width: 33.3%;
        padding: 8px;
    }
    .columns2 {
        float: left;
        width: 33.3%;
        padding-top: 70px;
    }
    .price {
        list-style-type: none;
        border: 1px solid #eee;
        margin: 0;
        padding: 0;
        -webkit-transition: 0.3s;
        transition: 0.3s;
    }
    .price:hover {
        box-shadow: 0 8px 12px 0 rgba(0,0,0,0.2)
    }
    .price .header {
        background-color: #2D2727;
        color: white;
        font-size: 25px;
    }
    .price li {
        border-bottom: 1px solid #eee;
        padding: 20px;
        text-align: center;
    }
    .price .grey {
        background-color: #eee;
        font-size: 20px;
    }
    .button {
        background-color: #4CAF50;
        border: none;
        color: white;
        padding: 10px 25px;
        text-align: center;
        text-decoration: none;
        font-size: 18px;
    }
    @media only screen and (max-width: 600px) {
        .columns {
            width: 100%;
        }
    }
    .table{
        color: black;
        text-align:center;
    }
    .table th{
        text-align:center;
    }

我已经设置了环境变量DISPLAY和XAUTHORITY但是我仍然收到连接被拒绝消息

subprocess.Popen(["/usr/bin/zenity", "--info", "--text", "please reboot for changes to take effect"], env=dict(os.environ, DISPLAY="0.0", XAUTHORITY="/home/pi/.Xauthority"))

这里有什么我想念的吗？

Answer 1

很可能是由于DISPLAY env var中的值不正确。尝试DISPLAY =“：0.0”

subprocess.Popen(["/usr/bin/zenity", "--info", "--text", "please reboot for changes to take effect"], env=dict(os.environ, DISPLAY=":0.0", XAUTHORITY="/home/pi/.Xauthority"))

无法使用python子进程打开X显示并设置DISPLAY和XAUTHORITY变量

1 个答案: