设置环境变量时出错

Question

I am working on a Django application. I want to put the SECRET_KEY in environment variables. I added this to the .bashrc file:

export SECRET_KEY=sdfsjhsuresfsdf

The i did source .bashrc

I am able to access the environment variable from python shell using:

import os
os.environ['SECRET_KEY']

But, it shows a keyError when I try to access this from settings.py file. What am I doing wrong?

Answer 1

Try:

export SECRET_KEY=sdfsjhsuresfsdf

Then re-source. And start a new Python instance. It should then be visible.

Bash doesn't always auto-export its variables.

In general, OS environment variables are a hard place to put configuration information reliably, because of such issues. It's hard to track down why variables are seen or not seen. Reading configuration information out of configuration files (whether .ini, .json, or some other format) is a bit more robust. But, environment variables are very commonly used, so, when in Rome...