擅长:python、mysql、java
<pre><code>ratings = {'Jill': {'Avenger: Age of Ultron': 7.0,
'Django Unchained': 6.5,
'Gone Girl': 9.0,
'Kill the Messenger': 8.0},
'Toby': {'Avenger: Age of Ultron': 8.5,
'Django Unchained': 9.0,
'Zoolander': 2.0}}
values = [[name, movie, rating] for name, r in ratings.items() for movie, rating in r.items()]
df = pd.dataframe(values)
</code></pre>