Setting environment variables in virtualenv (Python, Windows)

Question

As the title suggests, I'm trying to use a environment variable in a config file for a Flask project (in windows 10).

I'm using a virtual env and this far i have tried to add set "DATABASE_URL=sqlite:///models.db" to /Scripts/activate.bat in the virtualenv folder. But it does not seem to work. Any suggestions?

Answer 1

Flask does not automatically take configuration variables from environment variables. You have to set them manually like so:

app.config.from_envvar('YOURAPPLICATION_SETTINGS')

More info regarding configuration can be found here .

To set an environment variable in Windows, you should do as described here :

setx DATABASE_URL=sqlite://something.something

Answer 2

The problem was that PyCharm does not activate the virtualenvironment when pressing the run button. It only uses the virtualenv python.exe.