import sys
sys.path.insert(0, '.')

from flask import Flask, render_template, redirect, url_for
from flaskext.script import Manager
from flaskext.sqlalchemy import SQLAlchemy
from flaskext.debugtoolbar import DebugToolbarExtension


app = Flask(__name__)
app.config['DEBUG_TB_INTERCEPT_REDIRECTS'] = True
#app.config['DEBUG_TB_PANELS'] = (
#    'flaskext.debugtoolbar.panels.headers.HeaderDebugPanel',
#    'flaskext.debugtoolbar.panels.logger.LoggingPanel',
#    'flaskext.debugtoolbar.panels.timer.TimerDebugPanel',
#)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:////tmp/test.db'
db = SQLAlchemy(app)

toolbar = DebugToolbarExtension(app)

class ExampleModel(db.Model):
    __tablename__ = 'examples'
    value = db.Column(db.String(100), primary_key=True)

@app.route('/')
def index():
    app.logger.info("Hello there")
    ExampleModel.query.get(1)
    return render_template('index.html')

@app.route('/redirect')
def redirect_example():

    response = redirect(url_for('index'))
    response.set_cookie('test_cookie', '1')
    return response

if __name__ == "__main__":
    db.create_all()

    manager = Manager(app)
    manager.run()


import sys
sys.path.insert(0, '.')

from flask import Flask, render_template, redirect, url_for
from flaskext.script import Manager
from flaskext.sqlalchemy import SQLAlchemy
from flaskext.debugtoolbar import DebugToolbarExtension


app = Flask(__name__)
app.config['DEBUG_TB_INTERCEPT_REDIRECTS'] = True
#app.config['DEBUG_TB_PANELS'] = (
#    'flaskext.debugtoolbar.panels.headers.HeaderDebugPanel',
#    'flaskext.debugtoolbar.panels.logger.LoggingPanel',
#    'flaskext.debugtoolbar.panels.timer.TimerDebugPanel',
#)
app.config['SECRET_KEY'] = 'asd'
app.config['DEBUG'] = True
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:////tmp/test.db'
db = SQLAlchemy(app)

toolbar = DebugToolbarExtension(app)

class ExampleModel(db.Model):
    __tablename__ = 'examples'
    value = db.Column(db.String(100), primary_key=True)

@app.route('/')
def index():
    app.logger.info("Hello there")
    ExampleModel.query.get(1)
    return render_template('index.html')

@app.route('/redirect')
def redirect_example():

    response = redirect(url_for('index'))
    response.set_cookie('test_cookie', '1')
    return response

if __name__ == "__main__":
    db.create_all()

    manager = Manager(app)
    manager.run()


Make the example work again