data-science-from-scratch

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Corrected most_common_interests_with(user) method definition is exactly the same as in the book (page8). The same result as the proposed correction would give a method which takes user_id = user["id"]argument instead of a dict type user argument. However, in that case the code that would be iterating through all the users to display the results would be less clean:

• For user argument:

for user in users:
    print most_common_interests_with(user)

• For user_id argument:

for user_id in range(len(users)):
    print most_common_interests_with(user_id)