pyautogui错误显示，当python脚本从PHP调用

Question

我正在尝试使用pyautogui模块。如果我从控制台运行脚本，一切正常。当我尝试从php（shell_exec）执行python脚本时，apache2错误日志中出现以下错误：

Traceback (most recent call last):
  File "test.py", line 2, in <module>
    import pyautogui
  File "/usr/local/lib/python3.5/dist-packages/pyautogui/__init__.py", line 115, in <module>
    from . import _pyautogui_x11 as platformModule
  File "/usr/local/lib/python3.5/dist-packages/pyautogui/_pyautogui_x11.py", line 160, in <module>
    _display = Display(os.environ['DISPLAY'])
  File "/usr/lib/python3.5/os.py", line 725, in __getitem__
    raise KeyError(key) from None
KeyError: 'DISPLAY'

这是我的python脚本：

#! /usr/bin/python3
import pyautogui
import sys

print("Trying to get info")
pyautogui.click(3500,102,1)

下面是php：

$command = escapeshellcmd('/usr/bin/python3 test.py');
$output = shell_exec($command);
echo $output;

Answer 1

尝试xhost并通过类似os的操作系统手动导出python中的DISPLAY变量。环境['DISPLAY']=：1其中：1是显示变量的内容。