1148. Article Views I : leetcode

import pandas as pd

def article_views(views: pd.DataFrame) -> pd.DataFrame:
    result = views.loc[
        (views['author_id'] == views['viewer_id']), # row 
        ['author_id']
    ].drop_duplicates()
    result.rename(columns={'author_id': 'id'}, inplace=True)
    result.sort_values(by='id', inplace=True, ascending=True)
    return result