RuntimeError: cannot access configuration outside request

Question

I got following error:

RuntimeError: cannot access configuration outside request

from executing following code:

# -*- coding: u         


        

Answer 1

You haven't configured the Flask-Uploads extension. Use the configure_uploads() function to attach your upload sets to your app:

from flaskext.uploads import UploadSet, configure_uploads

app = Flask(__name__)
app.config['UPLOADED_CSVFILES_DEST'] = '/var/uploads'
csvfiles = UploadSet('csvfiles', ('csv',))
configure_uploads(app, (csvfiles,))

The second argument to UploadSet() takes a sequence of extensions. Don't pass in the file path to an UploadSet; you would use your Flask configuration instead.

Set UPLOADED_<name-of-your-set>_DEST, where the name is uppercased. Here that's UPLOADED_CSVFILES_DEST. You can also set a UPLOADS_DEFAULT_DEST configuration; it'll be used as a base directory, with separate subdirectories for each set name.

Alternatively, that 3rd parameter can be a callable:

configure_uploads(app, (csvfiles,), lambda app: '/var/uploads')