Python, Heroku & Memcachier - access settings.py variable

Question

I am following the instructions on Heroku for using Memcahier with Python.

When trying to use the 'mc' variable, which is set in settings.py, in another file I get the following error:

    Exception Value:    name 'mc' is not defined

I have tried importing settings.py into the file I wish to use the 'mc' variable but I get another error:

'Settings' object has no attribute 'mc'

How can I access this mc variable outside of the settings file?

Answer 1

This is probably an importing issue.

You need to access mc via settings.mc, because, provided you imported it using import settings at the beginning of the file, it is not included in your current namespace, but in a seperate one called "settings".

If you whish to import it directly into your current namespace, use

from settings import *

instead.

This only works, when your own file is in the same directory as settings.py, or if settings.py is in a directory known to Python. (See PYTHONPATH)

If settings.py is in another Directory, you could for example Import it using the whole path

围绕它时，为什么我的图像会消失

顺便说一句，浏览Python文档永远不会伤害：see this

此外，请确保为您的设置模块使用正确的大小写。如果将设置文件导入为＆＃34;设置＆＃34;使用小写字母，然后你必须像所有地方一样访问它，因为 Python区分大小写