SystemInfo.py

#! /usr/bin/python
# coding = utf-8
import subprocess
import time
import os
#device :eth0,wlan0
def get_ip(device):
	ip = subprocess.check_output("ip -4 addr show " + device + " | grep inet | awk '{print $2}' | cut -d/ -f1", shell = True).strip()
	return ip
# Return % of CPU used by user as a character string                               
#def getCPUuse():
#    return(str(os.popen("top -n1 | awk '/Cpu\(s\):/ {print $2}'").readline().strip()))
def getCPUuse():  
#calculate CPU with two short time, time2 - time1  
        time1 = os.popen('cat /proc/stat').readline().split()[1:5]  
        time.sleep(0.2)  
        time2 = os.popen('cat /proc/stat').readline().split()[1:5]  
        deltaUsed = int(time2[0])-int(time1[0])+int(time2[2])-int(time1[2])  
        deltaTotal = deltaUsed + int(time2[3])-int(time1[3])  
        cpuUsage = float(deltaUsed)/float(deltaTotal)*100  
        return cpuUsage

def net_stat():  
    net = []  
    f = open("/proc/net/dev")  
    lines = f.readlines()  
    f.close()  
    for line in lines[2:]:  
        con = line.split()  
        """ 
        intf = {} 
        intf['interface'] = con[0].lstrip(":") 
        intf['ReceiveBytes'] = int(con[1]) 
        intf['ReceivePackets'] = int(con[2]) 
        intf['ReceiveErrs'] = int(con[3]) 
        intf['ReceiveDrop'] = int(con[4]) 
        intf['ReceiveFifo'] = int(con[5]) 
        intf['ReceiveFrames'] = int(con[6]) 
        intf['ReceiveCompressed'] = int(con[7]) 
        intf['ReceiveMulticast'] = int(con[8]) 
        intf['TransmitBytes'] = int(con[9]) 
        intf['TransmitPackets'] = int(con[10]) 
        intf['TransmitErrs'] = int(con[11]) 
        intf['TransmitDrop'] = int(con[12]) 
        intf['TransmitFifo'] = int(con[13]) 
        intf['TransmitFrames'] = int(con[14]) 
        intf['TransmitCompressed'] = int(con[15]) 
        intf['TransmitMulticast'] = int(con[16]) 
        """  
        intf = dict(  
            zip(  
                ( 'interface','ReceiveBytes','ReceivePackets',  
                  'ReceiveErrs','ReceiveDrop','ReceiveFifo',  
                  'ReceiveFrames','ReceiveCompressed','ReceiveMulticast',  
                  'TransmitBytes','TransmitPackets','TransmitErrs',  
                  'TransmitDrop', 'TransmitFifo','TransmitFrames',  
                  'TransmitCompressed','TransmitMulticast' ),  
                ( con[0].rstrip(":"),int(con[1]),int(con[2]),  
                  int(con[3]),int(con[4]),int(con[5]),  
                  int(con[6]),int(con[7]),int(con[8]),  
                  int(con[9]),int(con[10]),int(con[11]),  
                  int(con[12]),int(con[13]),int(con[14]),  
                  int(con[15]),int(con[16]), )  
            )  
        )  
  
        net.append(intf)  
    return net