text: from itertools import islice
  from math import ceil
  
  from instaloader import Instaloader, Profile
  
  PROFILE = ...        # profile to download from
  X_percentage = 10    # percentage of posts that should be downloaded
  
  L = Instaloader()
  
  profile = Profile.from_username(L.context, PROFILE)
  posts_sorted_by_likes = sorted(profile.get_posts(),
                                 key=lambda p: p.likes + p.comments,
                                 reverse=True)
  
  for post in islice(posts_sorted_by_likes, ceil(profile.mediacount * X_percentage / 100)):
      L.download_post(post, PROFILE)
  