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Tag: flask
python – Flask – Accessing the config variable in the template-ThrowExceptions
Exception or error: I am using Flask version 0.7. I have stored the path of static content in a configuration file and loaded it using app.config.from_envvar(<file_name>) Can I be able to access this config variable in the template without passing the variables through the view? How to solve: There are a few global variables that …
Avoiding "MySQL server has gone away" on infrequently used Python / Flask server with SQLAlchemy-ThrowExceptions
Exception or error: How can Flask / SQLAlchemy be configured to create a new database connection if one is not present? I have an infrequently visited Python / Flask server which uses SQLAlchemy. It gets visited every couple of days, and on the first visit it often throws a “MySQL server has gone away” error. …
python – Where does flask look for image files?-ThrowExceptions
Exception or error: I am setting up a local server using flask. All I want to do currently is display an image using the img tag in the index.html page. But I keep getting error GET http://localhost:5000/ ayrton_senna_movie_wallpaper_by_bashgfx-d4cm6x6.jpg 404 (NOT FOUND) Where does flask look for files? A Little help would be great. My HTML …
python – How to implement server push in Flask framework?-ThrowExceptions
Exception or error: I am trying to build a small site with the server push functionality on Flask micro-web framework, but I did not know if there is a framework to work with directly. I used Juggernaut, but it seems to be not working with redis-py in current version, and Juggernaut has been deprecated recently. …
python – Determining what version of Flask is installed-ThrowExceptions
Exception or error: What’s the easiest way to determine which version of Flask is installed? How to solve: As of flask 0.7 (June 28th, 2011), a __version__ attribute can be found on the flask module. >> import flask >> flask.__version__ Keep in mind that because prior to flask 0.7 there was no __version__ attribute, the …
html – Flask Python Buttons-ThrowExceptions
Exception or error: Im trying to create two buttons on a page. Each one I would like to carry out a different python script on the server. So far I have only managed to get/collect one button using def contact(): form = ContactForm() if request.method == ‘POST’: return ‘Form posted.’ elif request.method == ‘GET’: return …
jquery – How to enable CORS in flask-ThrowExceptions
Exception or error: I am trying to make a cross origin request using jquery but it keeps being reject with the message XMLHttpRequest cannot load http://… No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin … is therefore not allowed access. I am using flask, heroku, and jquery the client code looks like this: …
python – Serving a front end created with create-react-app with Flask-ThrowExceptions
Exception or error: I have a Flask back-end with API routes which are accessed by a React single page application created using create-react-app. When using the create-react-app dev server, my Flask back end works. I would like to serve the built (using npm run build) static React app from my Flask server. Building the React …