Python's requests_cache library example

cache.py

import time
import requests
import requests_cache

requests_cache.install_cache('tmp/demo_cache', expire_after=120)

start_time = time.time()
for i in range(10):
    r = requests.get('http://httpbin.org/delay/1?index={}'.format(i))
    print("Request {}{}: {}".format(i+1," (from cache)" if r.from_cache else " (live)",r.text))

print("--- %s seconds ---" % (time.time() - start_time))