Python中的电子邮件正常运行时间

Question

我正在玩坐在我的Raspberry Pi上的电报机器人，所有工作都很好，但我试图用命令/正常运行时间显示rpi的正常运行时间，但未尝试：

elif command == '/uptime': 
    bot.sendMessage(chat_id, os.system("uptime")) 

或

elif command == '/uptime': 
    uptime = os.system("uptime") 
    bot.sendMessage(chat_id,'%s' % uptime) 

现在，这是我最后一次，不成功，尝试：

elif command == '/uptime': 
    uptime = os.popen("awk '{print $1}' /proc/uptime").readline() 
    bot.sendMessage(chat_id, ('uptime(sec) = '+uptime)) 

在哪里错误？

下面是完整的代码：

import sys 
import os 
import telepot 
import datetime 
import time 
from datetime import timedelta 

id_a = [111111,2222222,3333333,4444444,5555555] 

def handle(msg): 
    chat_id = msg['chat']['id'] 
    command = msg['text'] 
    sender = msg['from']['id'] 


    print 'Got command: %s' % command 

    if sender in id_a: 
    if command == '/ciao': 
      bot.sendMessage(chat_id, 'Hei, ciao!') 
    elif command == '/apri': 
     os.system("sudo python /home/pi/tg/xyz.py") 
     bot.sendMessage(chat_id, 'Ti ho aperto!') 
    elif command == '/uptime': 
     with open('/proc/uptime', 'r') as f: 
     usec = float(f.readline().split()[0]) 
     usec_str = str(timedelta(seconds = usec)) 
     bot.sendMessage(chat_id, '%s' % usec_str) 
    elif command == '/riavvia': 
      bot.sendMessage(chat_id, 'Rebooting...') 
      os.system("sudo reboot") 
    else: 
     bot.sendMessage(chat_id, 'Forbidden access!') 
     bot.sendMessage(chat_id, sender) 

bot = telepot.Bot('myToken') 
bot.message_loop(handle) 
print 'I am listening ...' 

while 1: 
    time.sleep(10) 

Answer 1

的Try ...

from datetime import timedelta 

with open('/proc/uptime', 'r') as f: 
    usec = float(f.readline().split()[0]) 
    usec_str = str(timedelta(seconds = usec)) 
    # and send message usec_str 

Answer 2

你需要得到来自subprocess输出。这是因为在其他情况下，Python会抛出第一个值stdout。 得到正常运行的代码应该是这样的：

import subprocess  
direct_output = subprocess.check_output('uptime', shell=True) 

这将使你在direct_output变量的正常运行时间。