Exercise

Recommend repositories

You're close to the end! Here, the task is to practice using set differences, and you'll apply it to recommending repositories from a second user that the first user should contribute to.

Instructions

100 XP
  • Write a function called recommend_repositories() that accepts 3 arguments - G, from_user, and to_user - and returns the repositories that the from_user is connected to that the to_user is not connected to.
    • Get the set of repositories the from_user has contributed to and store it as from_repos. To do this, first obtain the neighbors of from_user and use the set() function on this.
    • Get the set of repositories the to_user has contributed to and store it as to_repos.
    • Using the .difference() method, return the repositories that the from_user is connected to that the to_user is not connected to.
  • Print the repositories to be recommended from 'u7909' to 'u2148'.