import flask
from flask import Flask

app = Flask(__name__)


@app.route("/")
def index():
    return "hello"


@app.before_request
def before_request():
    print("before_request")


@app.teardown_request
def teardown_request(ex):
    print("teardown_request")


@app.teardown_appcontext
def teardown_appcontext(ex):
    print("teardown_appcontext")


@flask.appcontext_pushed.connect_via(app)
def appcontext_pushed(sender, *args, **kwargs):
    print("appcontext_pushed")


@flask.appcontext_popped.connect_via(app)
def appcontext_popped(sender, *args, **kwargs):
    print("appcontext_popped")


@flask.appcontext_tearing_down.connect_via(app)
def appcontext_tearing_down(sender, *args, **kwargs):
    print("appcontext_tearing_down")


@flask.request_tearing_down.connect_via(app)
def request_tearing_down(sender, *args, **kwargs):
    print("request_tearing_down")


@flask.request_finished.connect_via(app)
def request_finished(sender, *args, **kwargs):
    print("request_finished")


@flask.request_started.connect_via(app)
def request_started(sender, *args, **kwargs):
    print("request_started")

if __name__ == '__main__':
    with app.app_context():
        print("-" * 60)
        with app.test_client() as c:
            c.get("/")
        print("-" * 40)
        with app.test_client() as c:
            c.get("/")
        print("-" * 60)
    print("-" * 40)
    with app.test_client() as c:
        c.get("/")
    print("-" * 40)
    with app.test_client() as c:
        c.get("/")
    app.run()