如何在python脚本中修改系统路径变量？ [英] how do I modify the system path variable in python script?

问题描述

我试图从cron运行一个python脚本，但是它不能正常运行，所以我假设它有不同的路径env变量。有没有改变python脚本中的变量？

解决方案

你不应该需要从Python中设置PATH脚本。
而不是像

  USER = joe 
 HOME = / home / joe 
 SHELL = / bin / bash 
 PATH = / sbin：/ bin：/ usr / sbin：/ usr / bin：/ some / other / path 
 PYTHONPATH = / home / joe / pybin 
 MAILTO = joe 
 LANG = en_US.UTF-8 
 
 #min hr day mon dow 
 * / 5 12 * * * reminder.py'吃午餐'
 crontab顶部的 

这些环境变量将可用于通过crontab运行的所有cron作业。

I'm trying to run a python script from cron, but its not running properly so I'm assuming its the different path env variable. Is there anyway to change the variable within a python script?

解决方案

You shouldn't need to set the PATH from within the python script. Instead, put something like

USER=joe
HOME=/home/joe
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin:/some/other/path
PYTHONPATH=/home/joe/pybin
MAILTO=joe
LANG=en_US.UTF-8

#min hr    day   mon dow
*/5  12    *     *   *     reminder.py 'Eat lunch'

at the top of your crontab. These environment variables will then be available to all cron jobs run through your crontab.

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