from flask import Flask, session app = Flask(__name__) aConstant = 'CHANGEME1' app.config['SECRET_KEY'] = aConstant app.secret_key = aConstant app.config.update(SECRET_KEY=aConstant) app.config.from_mapping(SECRET_KEY=aConstant) app.config.from_pyfile("config.py") app.config.from_object('config.Config') @app.route('/') def DEB_EX(): if 'logged_in' not in session: session['logged_in'] = False if session['logged_in']: return app.secret_key else: return app.secret_key, 403 if __name__ == '__main__': app.run()