In flask, os.environ.get() return None

Question

I want to get th variable TOKEN from my environment in Flask

config.py:

*config.py:*
TOKEN = os.environ.get('TOKEN')

So i export TOKEN=666 Then:

$ sudo python3 manage.py shell
>>> import os
>>> os.environ.get('TOKEN')
>>> quit()

It return None.

After i read this -->os.environ.get() does not return the Environment Value in windows?

*local.env:*
export TOKEN=666

*config.py:*
TOKEN = os.environ.get('TOKEN')

and

$ source local.env
$ echo $TOKEN
666
$ sudo python3 manage.py shell
>>> import os
>>> os.environ.get('TOKEN')
>>> quit()

so as :$ sudo python3 manage.py runserver

if i print(TOKEN), it return NONE

But if i run python directly:

$ python
Python 3.5.2 (default, Nov 23 2017, 16:37:01) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.environ
>>> os.environ.get('TOKEN')
'666'

and if i set os.environ[TOKEN] = '666' directly...i can't keep it secretly:(

are you sure that `sudo` inherits from environment? I'd say that it _doesn't_ — Jean-François Fabre, Feb 26 '18 at 15:32
cross site dupe: https://unix.stackexchange.com/questions/337819/how-to-export-variable-for-use-with-sudo. Use `sudo -E` to propagate variables — Jean-François Fabre, Feb 26 '18 at 15:34

score 0 · Answer 1 · answered Sep 24 '22 at 14:44

0

sudo does not propagate environment variables unless explicitly configured to do so.

Use sudo --preserve-env or sudo -E to avoid this.

answered Sep 24 '22 at 14:44

Charles Duffy

280,126
43
390
441

In flask, os.environ.get() return None

1 Answers1

Linked