pd.info()在AttributeError中：'int‘对象没有属性'info’

Question

我只是用熊猫编写了一个load_data函数，然后我的代码中出现了错误，我不知道该如何处理？而且我的代码df.info()总是有错误，AttributeError: 'int' object has no attribute 'info', or the output is 0or

import numpy as np
import pandas as pd
import csv
from io import StringIO

def load_data():
    buffer = StringIO()
    #df.info(buf = buffer)
    #buffer.getvalue()
    #with open('work.csv', ';') as f:
    pd.read_csv('work.csv',';', encoding="utf-8")
    return 0

df = load_data()
print(df.info())

<class 'pandas.core.frame.DataFrame'>
RangeIndex: 740 entries, 0 to 739
Data columns (total 21 columns):
 #   Column                           Non-Null Count  Dtype  
---  ------                           --------------  -----  
 0   ID                               740 non-null    int64  
 1   Reason for absence               740 non-null    int64  
 2   Month of absence                 740 non-null    int64  
 3   Day of the week                  740 non-null    int64  
 4   Seasons                          740 non-null    int64  
 5   Transportation expense           740 non-null    int64  
 6   Distance from Residence to Work  740 non-null    int64  
 7   Service time                     740 non-null    int64  
 8   Age                              740 non-null    int64  
 9   Work load Average/day            740 non-null    float64
 10  Hit target                       740 non-null    int64 

Answer 1

这是因为load_data函数返回的是0，而不是已经加载的数据。你需要修改你的返回语句，这样才能像预期的那样工作：

def load_data():
    buffer = StringIO()
    #df.info(buf = buffer)
    #buffer.getvalue()
    #with open('work.csv', ';') as f:
    df = pd.read_csv('work.csv',';', encoding="utf-8")
    return df