How to put a condition that only runs when there is any change in API?

Question

Hello Community Members,

I am very new to python language and programming, currently I am working on a news API that shows the news from that API. I want this program to check and update whenever there is any update to the API. Please help what can I do to complete this.

CODE:

url = 'https://cryptopanic.com/api/v1/posts/?auth_token=<my token>&filter=hot'
html_link = requests.get(url)
datatype = html_link.json()
news_info = datatype['results']
latest_news = news_info[0]['title']
source = news_info[0]['source']['title']
print(latest_news)

I want this latest_news variable which stores the news to print whenever there is new news in the list, I have tried comparison method but still didn't find anything so far.