从PHP导入模块错误调用python脚本

Question

I have this python script that i need to call it from php, this my python script:

#!/usr/bin/env python

import dlib
import sys
import os
import cv2
from shutil import copyfile

if __name__ == "__main__":
    print "Test"

this is my php code to call python script:

<?php
$out =  shell_exec("/usr/bin/python2.7 /opt/lampp/htdocs/test.py");
echo $out;
?>

My problem is the python code works perfectly from terminal, but using php he doesn't work because of import dlib when i delete it the python script works fine from php and when i add it he doesn't work.

The dlib libray works perfectly since when i test the python code from terminal he works.