如何使用php页面中显示的python CGI脚本显示带边框的表格

#!/usr/bin/env python
print("Content-type: text/html\n\n")

table_html = "<table border='1'>"
table_html += "<tr><th>Header 1</th><th>Header 2</th></tr>"
table_html += "<tr><td>Data 1</td><td>Data 2</td></tr>"
table_html += "</table>"

print(table_html)

<?php
$command = "/path/to/python /path/to/table.py";
$table_html = shell_exec($command);

echo $table_html;
?>

<style>
table {
  border-collapse: collapse;
}

table, th, td {
  border: 1px solid black;
  padding: 5px;
}
</style>