How to implement site parsing through your own site and its updates due to this?

Question

Parsing

Hi all. I want to implement a site that could parse other sites and update information due to this. The question is, is it really possible to implement it, and if so, with what help (Ideally, through python beautifulsoup)?
For example, what I want to implement:
Let's say there is weather on my site and I want to take it from another site. I want to parse the site with the weather and the information that I received already on my site. (ps this is just an example, the task is different).
Thanks in advance to everyone for the replies.

Answer 1

Really.
Look at this article on Habré.