Flask session not working

GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. Please find attached the gif with 3 simple steps. I couldn't replicate the issue when following the VS Code Flask tutorial like the original poster and with this setup:.

Do you have a sample project I could use to try and reproduce this issue? Could you also answer the following questions:.

Flask Session

Dear kimadelineplease find below the answers to some of your questions the ones I could check so far :. Which version of the Python extension are you using? Python 3. Does debugging work if you downgrade the extension? I downgraded to 3. Hi GermanCM.

It sounds like you downgraded your version of Python from 3. Dear kimadelinethanks for your support.

Flask – Sessions

It seems to be due to the Python extension in VSCode as you recall, I downgraded this to another one from 4 months ago aprox. I will try to give you access to a test repository with the versions which gave me the issue.

The env key of launch. The part up to Library should match the part up to python. This path and some others are already part of the Path variable when launching plain Anconda Prompt. Installing OpenSSL is no longer a requirement. This issue might appear only on Windows? Selecting git bash as default shell also did seem to resolve the issue this was before installing OpenSSL. Hi Rthank you for providing a workaround!

GermanCM does R 's solution solve your problem? Because we have not heard back with the information we requested, we are closing this issue for now. If you are able to provide the info later on then we will be happy to re-open this issue to pick up where we left off.

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Flask session cookie not set in Safari

Labels info needed type-bug. Copy link Quote reply. Environment data VS Code version: 1. GermanCM added classify type-bug labels Oct 22, I couldn't replicate the issue when following the VS Code Flask tutorial like the original poster and with this setup: macOS Use [Ask Flask] or [AF] if you have a very specific problem and need help with code.

I'm working on a web app which uses sessions to store user selected items in a dictionary. It works perfectly on localhost, but on Heroku, I get a key error that the session container doesn't exist. What could be causing this? Any help would be greatly appreciated. That would be my first guess. I actually modeled it after that guide, and it the syntax looks like "app.

Are you using gunicorn on heroku? Where in your code is that line entered? Can you post a link to your repo? That would make a lot easier to help :. If the app.

flask session not working

Heroku starts the server using the command I your procfile. That would cause your app to have no secret key, and the session to be empty. I would recommend you read through the flask doc on configuration. That will change the key each time a new process starts.

It could be because Heroku started a new dyno. It could be because you pushed a change to the application. You should generate the secret once and set it as a Heroku config value. I was assigning the secret code in a sessions controller file so it was being changed every time the user switched pages or refreshed.

I moved it to a config file and now everything works. Thanks to everyone who commented! Use of this site constitutes acceptance of our User Agreement and Privacy Policy. All rights reserved. Want to join? Log in or sign up in seconds.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

It only takes a minute to sign up. I have been banging my head against the wall trying to get this Flask web app runningwhich is really frustrating because it is only a preliminary to make sure all the modules and such are working correctly to be able to run a Flask app using SQLAlchemy. I have reinstalled my python installation from anaconda to the latest python 3. Any advice on this point? Its working for me!! Sign up to join this community. The best answers are voted up and rise to the top.

flask session not working

Home Questions Tags Users Unanswered. Web CS50 Project 1: 'flask. NoAppException' flask app with sqlalchemy Ask Question. Asked 1 year, 8 months ago. Active 2 months ago. Viewed times. I am running: Windows 10, python 3. MARS 4, 3 3 gold badges 10 10 silver badges 22 22 bronze badges.

It's difficult to tell. Have you taken care of all Heroku deployment requirements? And try to paste the dump in using braces to prettify code next time. It looks nice. I can access the Heroku database using the key I was given when I signed up for Heroku, using the CLI in postgresql, so I think it has to do with the python code on my end. I was able to somewhat fix the problem. On stackoverflow someone suggested that I use an older version of the itsdangerous module because the new 1.

I installed the 0. Active Oldest Votes. Try to delete the following code in line Session app At least it works for me in Mac.

Manage Sessions with Flask-Login - Chat App Part9

Tommy Wong Tommy Wong 31 3 3 bronze badges. It worked for me too but wouldn't it compromise the project in terms of creating user sessions? Nandhini Muthusamy Nandhini Muthusamy 1. This doesn't work for me. It worked after I changed to use windows powershell from ubuntu for some reasons. Featured on Meta.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

I am using flask sessions with Redis to save data for individual users across API calls from my React frontend. At this point, when I print out the session data, I see both fields correctly, meaning that the session persisted from the first request to the second. Learn more. Asked 5 days ago. Active 5 days ago. Viewed 30 times. Why might this be happening? Thank you in advance for any advice! Active Oldest Votes.

Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Tales from documentation: Write for your clueless users.

Podcast a conversation on diversity and representation. Upcoming Events.GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. Because of the pushed app context before each test case, multiple client requests within a test will see each other's un-committed sessions.

This goes against the docs:. Therefore the session is cleared along with any objects added to it every time you call client. Column db. Bump - this seems like a pretty major issue, assuming I'm not doing anything wrong here.

Is nobody else able to reproduce? I use multiple client requests in a single test and they work find. The documents for Flask-Testing does say that the session is removed at the end of the test. If you want to explicitly test the session stuff you would have to manually do what setUp and tearDown does between requests. I also use multiple client requests per test, and they do not work fine for me. For example, if a request creates a SQLA model that has a foreign key, it gets attached to the session even if the request doesn't commit.

If I then try to commit outside the request, because the session is shared I get IntegrityErrors when the uncommitted model tries to get committed with invalid fields. My IntegrityError can be avoided, yes, but that would entail every view function doing db.

It's only a problem with the tests, because usually it's assumed there's one session per request so you never have to roll it back yourself. This creates very unexpected behavior when you have more than one request per test.

For example, in this gist I have a test where client. It's a good point that this might be out of Flask-Testing's scope, though. I'll look a bit more into it. I am doing the latter.Eager to get started? This page gives a good introduction to Flask. It assumes you already have Flask installed. If you do not, head over to the Installation section. First we imported the Flask class.

Websites built with Flask

An instance of this class will be our WSGI application. Next we create an instance of this class. This is needed so that Flask knows where to look for templates, static files, and so on. For more information have a look at the Flask documentation. We then use the route decorator to tell Flask what URL should trigger our function.

Just save it as hello. Make sure to not call your application flask. If you are on Windows, the environment variable syntax depends on command line interpreter. On Command Prompt:. This launches a very simple builtin server, which is good enough for testing but probably not what you want to use in production. For deployment options see Deployment Options. If you run the server you will notice that the server is only accessible from your own computer, not from any other in the network.

This is the default because in debugging mode a user of the application can execute arbitrary Python code on your computer. In case the python -m flask fails or flask does not exist, there are multiple reasons this might be the case. First of all you need to look at the error message. Versions of Flask older than 0. In short, the flask command did not exist, and neither did python -m flask.

In that case you have two options: either upgrade to newer Flask versions or have a look at the Development Server docs to see the alternative method for running a server.

In case that module is incorrectly named you will get an import error upon start or if debug is enabled when you navigate to the application.

It will tell you what it tried to import and why it failed. The most common reason is a typo or because you did not actually create an app object. Want to just log errors and stack traces? See Application Errors.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm trying to pass a list of dictionaries between Flask pages through session but it is giving me this error enter image description here. So your app. Then remove from flaskapp import app. Learn more. Flask : session not working. Showing session object has no attribute 'modified' Ask Question.

Asked 1 month ago. Active 1 month ago. Viewed 23 times. Miral Songhela Miral Songhela 1 3 3 bronze badges. Active Oldest Votes. Callum S Callum S 71 5 5 bronze badges. Wai Ha Lee 7, 14 14 gold badges 49 49 silver badges 74 74 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.

flask session not working

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