从php调用python脚本无法正常工作

Question

我下面有简单的PHP代码，在其中输入值并提交按钮即可运行php代码。表truncate和新值正在按需要存储，但我无法在其中执行python脚本。

<form action="" method="post">
Twittersearch: <input type="text" name="name"><br>
<input type="Submit">
</form>



<?php

$name = $_POST['name'];
$namesearch = $_POST['namesearch'];



    # Database Access
    $servername = 'localhost';
    $username = 'a';
    $password = 'a';
    $dbname = 'a';

    // Create connection
    $conn = new mysqli($servername, $username, $password, $dbname);
    // Check connection
    if ($conn->connect_error) {
        die("Connection failed: " . $conn->connect_error);
    } 
    $sql = "TRUNCATE TABLE `abc`";
    #$sql = "INSERT INTO `abc`(`searchstring`, `handle`) VALUES ('".$name."','".$namesearch."')";   
    $sql = "UPDATE `abc` SET `searchstring` = '".$name."', `handle` = 'TEST' WHERE `searchstring` <> '12rm012m101101mkl'";
    $result = $conn->query($sql);
    echo "Put ".$customerName." into ".$clusterName." successfully!";
    $command = escapeshellcmd('C:\Users\xyz\AppData\Local\Programs\Python\Python37-32\python.exe C:\Users\xyz\AppData\Local\Programs\Python\Python37-32\twitterhandle.py');
    $output = shell_exec($command);
    echo $output;

?>