Question

我有一个数据帧bus_rev，如果我在jupyter笔记本中运行bus_rev.head（），它会显示前几行，但如果我运行print（bus_rev [0：3]）或print bus_rev [0：3]它没有回报。我有以下bus_rev.dtypes的输出，谁能告诉我发生了什么？

代码：

bus_rev.dtypes

输出：

user_id          object
business_id      object
stars_x           int64
address          object
attributes       object
categories       object
city             object
hours            object
is_open           int64
latitude        float64
longitude       float64
name             object
neighborhood     object
postal_code      object
review_count      int64
stars_y         float64
state            object
good_reviews       bool
dtype: object


Update (didn't work):

import sys
stdout = sys.stdout
reload(sys)
sys.setdefaultencoding('utf-8')
sys.stdout = stdout

print(bus_rev3.head())


Import Code:

from collections import Counter
from datetime import datetime

import pandas as pd

t1 = datetime.now()

import sys
reload(sys)
sys.setdefaultencoding('utf-8')

reviews = ''

with open('dataset/review.json','r') as f:
    for line in f.readlines()[0:100000]:
        reviews += line

testdf = pd.read_json(reviews,lines=True)

print(datetime.now() - t1)

Answer 1

您在脚本开头导入了什么？似乎reload(sys)过去曾为其他人带来过问题。

Print not showing in ipython notebook - python

dataframe head（）有效但打印不起作用

1 个答案: