python - Systemd 服务无法识别 python 库

Question

当我的 Raspberry Pi 启动时，我正在尝试运行 python discord 机器人。为此，我使用了 systemd 服务：

[Unit]
Description=Testing

[Service]
Type=idle
WorkingDirectory=/home/pi
ExecStart=/usr/bin/python3 /home/pi/discord/bug.py

[Install]
WantedBy=multi-user.target

我之前使用更简单的 python 程序进行了几次测试，一切正常。尝试运行不和谐机器人时，它会在导入语句中引发错误。为了测试我运行：

sudo systemctl start bugstart
sudo systemctl status bugstart

状态的输出如下：

bugstart.service - Testing
   Loaded: loaded (/lib/systemd/system/bugstart.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sun 2018-08-12 02:08:47 UTC; 1s ago
  Process: 1039 ExecStart=/usr/bin/python3 /home/pi/discord/bug.py (code=exited, status=1/FAILURE)
 Main PID: 1039 (code=exited, status=1/FAILURE)

Aug 12 02:08:46 raspberrypi systemd[1]: Started Testing.
Aug 12 02:08:47 raspberrypi python3[1039]: Traceback (most recent call last):
Aug 12 02:08:47 raspberrypi python3[1039]:   File "/home/pi/discord/bug.py", line 1, in <module>
Aug 12 02:08:47 raspberrypi python3[1039]:     import discord
Aug 12 02:08:47 raspberrypi python3[1039]: ImportError: No module named 'discord'
Aug 12 02:08:47 raspberrypi systemd[1]: bugstart.service: Main process exited, code=exited, status=1/FAILURE
Aug 12 02:08:47 raspberrypi systemd[1]: bugstart.service: Unit entered failed state.
Aug 12 02:08:47 raspberrypi systemd[1]: bugstart.service: Failed with result 'exit-code'.

我发现这些命令是以 root 身份运行的，所以我认为可能是库 hand 没有安装在 root 上，但是我尝试在命令行 shell 中导入不和谐，它工作正常。

标签： pythonlinuxsystemd