A simple example using flask endpoint

flask_endpoint_example.py

#!/usr/bin/env python
from __future__ import print_function
from flask import Flask, url_for, redirect
import argparse

app = Flask(__name__)

# If you look at the source code of `Flask.route`, 
# endpoint is just a key for Flask to route incoming
# request to view function (like `hello` function here).
# In this case, all request to `/` or `/<name>` will be 
# handled by `hello`.
# By default, if the endpoint is not specified, it will
# be setup as function name. ("hello" in this case if you
# remove endpoint="hello_func")
@app.route("/")
@app.route("/<name>", endpoint="hello_func")
def hello(name = None):
    return "Hello, {}".format(name is None and "World" or name)

# Here you can see the benefit of using endpoint.
# You can redirect incomming request to other view
# function via endpoint which you assigned to it.
# In this case, you redirect the request to `/test`
# to `/endpoint_example`.
@app.route("/test")
def test():
    return redirect(url_for("hello_func", name="endpoint_example"))

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("-p", "--port", dest="port", default=3333, type=int, help="port number (default: 3333)", metavar="INT")
    parser.add_argument("-H", "--host", dest="host", default="127.0.0.1", help='host address (default: localhost)', metavar="ADDR")
    parser.add_argument("-d", "--debug", action="store_true", help="running in debug mode (default: False)")
    args = vars(parser.parse_args())
    app.run(**args)