方法1:通过系统文件或者系统命令来获取;

import osimport commandsimport stringimport socketimport jsondef base_info():    """    :return HOSTNAME, IPADDR, CPU, CPUIDLE, MEM, AVAI_MEM, VERSION(6/7), MACHINE(64/32)    """    ifname='eth0'    osinfo = os.uname()    HOSTNAME = osinfo[1]    VERSION  = osinfo[2].split('.')[-2]    MACHINE  = osinfo[-1]    mem_cmd = "awk '/MemTotal/{printf(\"%0.2f\",$2/1000/1000)}' /proc/meminfo"    MEM = int(round(float(commands.getoutput(mem_cmd))))    cpu_cmd = "awk '/processor/{cpu+=1}END{print cpu}' /proc/cpuinfo"    CPU = commands.getoutput(cpu_cmd)    if VERSION == 'el7':        avai_mem_cmd = "awk '/MemAvailable/ {printf(\"%0.2f\",$2/1000/1000)}' /proc/meminfo"        AVAI_MEM =  commands.getoutput(avai_mem_cmd)        cpuidle_cmd = "top -bcn 1 | head |awk '/Cpu/ {print $8}'"        CPUIDLE = commands.getoutput(cpuidle_cmd)    if VERSION == 'el6':        ##centos6 可用内存计算方法:MemFree+Buffers+Cached        avai_mem_cmd = "sed -n '2,4p' /proc/meminfo |awk '{sum+=$2}END{printf(\"%.2f\",sum/1000/1000)}'"        AVAI_MEM =  commands.getoutput(avai_mem_cmd)        cpuidle_cmd = "top -bcn 1 | sed -n 's/ //g;3p' | awk -F\"%|,\" '{print $7}'"        CPUIDLE = commands.getoutput(cpuidle_cmd)    unix_socker = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)    IPADDR = socket.inet_ntoa(fcntl.ioctl(        unix_socker.fileno(),        0x8915,  # SIOCGIFADDR        struct.pack('256s', ifname[:15])    )[20:24])    return HOSTNAME, IPADDR, CPU, CPUIDLE, MEM, AVAI_MEM, VERSION, MACHINE

方法2:通过 psutil 模块来获取

import osimport commandsimport stringimport socketimport jsonimport psutildef base_info():    """    :return HOSTNAME, IPADDR, CPU, CPUIDLE, MEM, AVAI_MEM, VERSION(6/7), MACHINE(64/32)    """    ifname='eth0'    osinfo = psutil.os.uname()    HOSTNAME = osinfo[1]    VERSION = osinfo[2].split('.')[-2]    MACHINE = osinfo[-1]    CPUIDLE = 100-psutil.cpu_percent(interval=1)    CPU = psutil.cpu_count()    mem_info = psutil.virtual_memory()    MEM = mem_info.total/1024/1024/1000    AVAI_MEM = mem_info.available/1024/1024/1000    net_info = psutil.net_if_addrs()    IPADDR = net_info['eth0'][0].address     return HOSTNAME, IPADDR, CPU, CPUIDLE, MEM, AVAI_MEM, VERSION, MACHINE