Folks landing here from Google: you will probably be primarily interested in the official docs on the set tag, rather than the specific syntax mistake made by the asker here or how to fix it, which is what the top answers here and at the linked duplicate address.

FLASK_APP=app.py FLASK_ENV=development FLASK_RUN_HOST=[dev-host-ip] FLASK_RUN_PORT=5000 If you have a virtual environment, activate it and do a pip install python-dotenv . This package is going to use the .flaskenv file, and declarations inside it will be automatically imported across terminal sessions.

Apr 5, 2015 · For a quick n' dirty self-signed cert, you can also use flask run --cert adhoc or set the FLASK_RUN_CERT env var. $ export FLASK_APP="app.py" $ export FLASK_ENV=development $ export FLASK_RUN_CERT=adhoc $ flask run * Serving Flask app "app.py" (lazy loading) * Environment: development * Debug mode: on * Running on https://127.0.0.1:5000/ (Press ...

Prior to Flask 2.2, the FLASK_APP and FLASK_ENV=development environment variables were used instead. FLASK_APP and FLASK_DEBUG=1 can still be used in place of the CLI options above. $ export FLASK_APP=sample $ export FLASK_ENV=development $ flask run

Aug 2, 2012 · Set default content_type for Flask test client. 0. Flask-Restplus, changing content-type in swagger. 3 ...

Sep 16, 2014 · We can set the response headers in Python Flask application using Flask application context using flask.g. This way of setting response headers in Flask application context using flask.g is thread safe and can be used to set custom & dynamic attributes from any file of application, this is especially helpful if we are setting custom/dynamic response headers from any helper class, that can also ...

Dec 18, 2013 · For me, static_url_path seemed required and did not default to anything. Checking the docs, it defaults to the value of static_folder, and I had added a slash, which made Flask not be able to match the path.

Nov 13, 2013 · I was not able to find that in flask documentation or, flask-principal's documentation. I thought of a way of doing it by hand, set a variable server-side with a time tag at the moment of login and at the next action the user takes, the server verifies the time-delta on that timestamp and deletes the session.

Jan 19, 2013 · In flask we can maintain the mvc structure like as separate all thinks for example 1 Templets folder contains all html files 2 Static folder contains all css and boostrap related files 3 User defined db folder for db connection and crud operations 4 User defined Model folder for accessing/ binding the data from Templets/front- end to db/back ...

on the heroku side i am using flask and it is like this. from flask import Flask,request from flask.ext.mandrill import Mandrill try: from flask.ext.cors import CORS # The typical way to import flask-cors except ImportError: # Path hack allows examples to be run without installation.