Python 中 Telegram 机器人的正常运行时间

Question

我在我的 Raspberry Pi 上玩 Telegram 机器人，一切正常，但我试图用命令 /uptime 显示 rpi 的正常运行时间，但没有成功，我尝试了：

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

或与

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

这是我最后一次尝试，但未成功：

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

错在哪里？

完整代码如下：

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

您需要从subprocess 获取输出。这是因为在其他情况下，Python 会转换 stdout 的第一个值。 获取正常运行时间的代码应该是这样的：

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

这将为您提供direct_output 变量中的正常运行时间。

Answer 2

试试……

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