Python obtains the code for CPU usage, memory usage, and network usage status, and pythoncpu

Python obtains the code for CPU usage, memory usage, and network usage status, and pythoncpu

Since psutil has been updated to version 3.0.1, the latest code is as follows:

#!/usr/bin/env pythonimport osimport timeimport sysimport atexitimport psutil#print "Welcome,current system is",os.name," 3 seconds late start to get data"time.sleep(3)line_num = 1#function of Get cpu statedef getCPUstate(interval=1):  return (" CPU:"+str(psutil.cpu_percent(interval))+"%")def getMemorystate():  phymem = psutil.virtual_memory()  line = "Memory: %5s%% %6s/%s"%(      phymem.percent,      str(int(phymem.used/1024/1024))+"M",      str(int(phymem.total/1024/1024))+"M"      )  return linedef bytes2human(n):  """  >>>bytes2human(10000)  '9.8k'  >>>bytes2human(100001221)  '95.4M'  """  symbols = ('K','M','G','T','P','E','Z','Y')  prefix = {}  for i ,s in enumerate(symbols):    prefix[s] = 1 << (i+1)*10  for s in reversed(symbols):    if n >=prefix[s]:      value = float(n) / prefix[s]      return '%.2f %s'%(value,s)  return '%.2fB'%(n)def poll(interval):  """Retrieve raw stats within an interval window."""  tot_before = psutil.net_io_counters()  pnic_before = psutil.net_io_counters(pernic=True)  #sleep some time  time.sleep(interval)  tot_after = psutil.net_io_counters()  pnic_after = psutil.net_io_counters(pernic=True)  #get cpu stats  cpu_state = getCPUstate(interval)  #get memory  memory_state = getMemorystate()  return (tot_before,tot_after,pnic_before,pnic_after,cpu_state,memory_state)def refresh_window(tot_before,tot_after,pnic_before,pnic_after,cpu_state,memory_state):  """print stats on screen"""  #print current time,cpu state,memory  print (time.asctime() +" | "+cpu_state+" | "+      memory_state)  #total  print(" NetStates:")  print(" total bytes: sent: %-10s received: %s"%(\    bytes2human(tot_after.bytes_sent), \    bytes2human(tot_after.bytes_recv)))  print( " total packets: sent: %-10s received: %s"%(\    tot_after.packets_sent,\    tot_after.packets_recv))  # per-network interface details: let's sort network interfaces so    # that the ones which generated more traffic are shown first  print( " ")  nic_names = pnic_after.keys()  #nic_names.sort(key=lambda x: sum(pnic_after[x]), reverse=True)  for name in nic_names:    stats_before = pnic_before[name]    stats_after = pnic_after[name]    templ = "%-15s %15s %15s"      print(templ % (name, "TOTAL", "PER-SEC"))     print(templ % (      "bytes-sent",        bytes2human(stats_after.bytes_sent),       bytes2human(stats_after.bytes_sent - stats_before.bytes_sent) +      '/s',       ))    print(templ % (        "bytes-recv",        bytes2human(stats_after.bytes_recv),        bytes2human(stats_after.bytes_recv- stats_before.bytes_recv)      + '/s',        ))    print(templ % (       "pkts-sent",      stats_after.packets_sent,      stats_after.packets_sent - stats_before.packets_sent,      ))    print((templ %(      "pkts-recv",       stats_after.packets_recv,      stats_after.packets_recv - stats_before.packets_recv,      )))    print( " ")try:  interval = 0  while 1:    args = poll(interval)    refresh_window(*args)    interval = 1except (KeyboardInterrupt,SystemExit):  pass

The above is the updated instance code. You can test it together. If you have any other questions, you can discuss it in the comment area below. Thank you for your support for the help house.