TypeError：对象没有属性

Question

我正在研究一个程序，它将从探测器中获取温度，然后将其放入Google电子表格中。我修改了一些我发现的代码，并且遇到了一个我不知道该怎么处理的错误。

的代码如下：

#!/usr/bin/python3 

import os 
import glob 
import time 
import gspread 
import sys 
import datetime 


#Google account details 
email = 'email@google.com' 
password = 'password' 
spreadsheet = 'spreadsheet' #the name of the spreadsheet already created 

#attempt to log in to your google account 
try: 
    gc = gspread.login(email,password) 
except: 
    print('fail') 
    sys.exit() 

#open the spreadsheet 
worksheet = gc.open(spreadsheet).sheet1 

#initiate the temperature sensor 
os.system('modprobe w1-gpio') 
os.system('modprobe w1-therm') 

#set up the location of the sensor in the system 
base_dir = '/sys/bus/w1/devices/' 
device_folder = glob.glob(base_dir + '28*')[0] 
device_file = device_folder + '/w1_slave' 


def read_temp_raw(): #a function that grabs the raw temperature data from the $ 
    f_1 = open(device_file, 'r') 
    lines_1 = f_1.readlines() 
    f_1.close() 
    return lines_1 

def read_temp(): #a function that checks that the connection was good and stri$ 
    lines = read_temp_raw() 
    while lines[0].strip()[-3:] != 'YES': 
     time.sleep(0.2) 
     lines = read_temp_raw() 
    equals_pos = lines[1].find('t=') 
    temp = float(lines[1][equals_pos[0]+2:])/1000 
    return temp 

while True: #infinite loop 
    temp = read_temp() #get the temp 
    values = [datetime.datetime.now(), temp[0], temp[1]] 
    worksheet.append_row(values) #write to the spreadsheet 
    time.sleep(600) #wait 10 minutes 

我得到的错误是：

Traceback (most recent call last): 
    File "temp.py", line 52, in <module> 
    temp = read_temp() #get the temp 
    File "temp.py", line 48, in read_temp 
    temp = float(lines[1][equals_pos[0]+2:])/1000 
TypeError: 'int' object has no attribute '__getitem__' 

我觉得我缺少明显的东西，但我不知道它是什么。任何帮助，将不胜感激。我在这方面比较新。

Answer 1

equals_pos是一个int（这是什么str.find返回），所以equals_pos[0]+2没有意义。 equals_pos+2可能会做。