server.py

import time
import memcache

from bottle import route, run, default_app
from gevent import sleep

mc = memcache.Client(['127.0.0.1:11211'])

def reverse(name: str) -> str:
    sleep(0.05)
    return name[::-1]

@route('/slow')
def slow():
    sleep(0.1)
    return 'Hi Greenville!'

@route('/fast')
def fast():
    return 'Hi Greenville!'

@route('/reverse_mc/<name>')
def reverse_mc(name: str):
    value = mc.get(name)
    if not value:
        value = reverse(name)
        mc.set(name, value, time=1)

    return f'Hello, {value:s}.'

@route('/reverse/<name>')
def reverse_path(name: str):
    return f'Hello, {reverse(name):s}.'

app = default_app()