crontab沒有為Rpi.GPIO運行python腳本

Question

我有一個python腳本，我正在嘗試使用以下命令在啟動時運行

sudo crontab -e

使用以下命令

@reboot python /usr/local/sbin/ShutdownJumper.py

腳本ShutdownJumper.py開頭為：

#!/usr/bin/env python
#note crontab for superuser required a new PATH variable as here https://unix.stackexchange.com/questions/43392#answer-43394
import subprocess
try:
 import RPi.GPIO as GPIO
except RuntimeError:
 print("Error importing RPi.GPIO! This is probably because you need superuser privileges. You can achieve this by using 'sudo' to run your script")

重新啟動RPi時，我會收到以下電子郵件：

Traceback (most recent call last):
  File "/usr/local/sbin/ShutdownJumper.py", line 4, in <module>
    import RPi.GPIO as GPIO
ImportError: No module named RPi.GPIO

我試過更改crontab中的PATH ，所以無濟於事。

Answer 1

嘗試在crontab上使用此代碼

@reboot cd /usr/local/sbin && sudo python ShutdownJumper.py