从具有列表作为列之一中的条目的csv文件创建数据帧

Question

I have a csv file which looks like this -

id  genres
1   [{'id': 35, 'name': 'Comedy'}]
2   [{'id': 35, 'name': 'Comedy'}, {'id': 18, 'name': 'Drama'}, {'id': 10751, 'name': 'Family'}, {'id': 10749, 'name': 'Romance'}]
3   [1,2,3]
4   [{'id':31, 'name':'Comedy'}]

When I import the csv as dataframe , the lists in genres column are loaded as strings. For example - "[{'id': 35, 'name': 'Comedy'}]"

How do I load the lists without the quotes ?

Answer 1

Use:

import ast, json

df['genres'] = df['genres'].apply(ast.literal_eval)

Or:

df['genres'] = df['genres'].apply(json.loads)

Answer 2

Also using strip()+split():

df['genres']= [x.strip("[]").split(',') for x in df['genres']]

or,

df['genres']= df['genres'].apply(lambda x: x.strip("[]").split(','))