使用python获取CPU和内存信息的思路与实现(linux系统)

from __future__ import print_function
from collections import OrderedDict
import pprint

def CPUinfo():
    '''Return the info in /proc/cpuinfo
    as a dirctionary in the follow format:
    CPU_info['proc0']={...}
    CPU_info['proc1']={...}
    '''

    CPUinfo=OrderedDict()
    procinfo=OrderedDict()

    nprocs = 0
    with open('/proc/cpuinfo') as f:
        for line in f:
            if not line.strip():
                #end of one processor
                CPUinfo['proc%s' % nprocs]=procinfo
                nprocs = nprocs+1
                #Reset
                procinfo=OrderedDict()
            else:
                if len(line.split(':')) == 2:
                    procinfo[line.split(':')[0].strip()] = line.split(':')[1].strip()
                else:
                    procinfo[line.split(':')[0].strip()] = ''
    return CPUinfo

if __name__ == '__main__':
    CPUinfo = CPUinfo()
    for processor in CPUinfo.keys():
        print('CPUinfo[{0}]={1}'.format(processor,CPUinfo[processor]['model name']))

from __future__ import print_function
from collections import OrderedDict

def meminfo():
    '''return the info of /proc/meminfo
    as a dictionary
    '''
    meminfo = OrderedDict()

    with open('/proc/meminfo') as f:
        for line in f:
            meminfo[line.split(':')[0]] = line.split(':')[1].strip()
    return meminfo

if __name__ == '__main__':
    meminfo = meminfo()

    print("Total memory:{0}".format(meminfo['MemTotal']))
    print("Free memory:{0}".format(meminfo['MemFree']))