需要用到库
-
python3用tkinter, python2用Tkinter
-
psutil
思路
-
利用psutil获取到第一个网卡, 然后获取传入传出的流量, 单位是字节(byte), 一般都是KB, 也就是一千个字节来显示比较普遍, 所以后面有除以1024;
-
用while循环, 每隔一秒来刷新;
-
tkinter中按钮绑定的方法作为一个中间方法, 先开启一个线程, 然后在执行实际的代码, 这样图形界面也不会卡顿.
下面是实际的代码
# _*_ coding: utf-8 _*_
# @Author : otfsenter
try:
import Tkinter as tk
except ImportError:
import tkinter as tk
import threading
import time
import psutil
# 最后的1表示第2个网卡，如果网速显示不正常，可以尝试变化一下数字，一般是1
key = list(psutil.net_io_counters(pernic=True).keys())[2]
def seconds():
in_flow = psutil.net_io_counters(pernic=True).get(key).bytes_recv
out_flow = psutil.net_io_counters(pernic=True).get(key).bytes_sent
return int(in_flow), int(out_flow)
class Window(tk.Tk):
def __init__(self):
tk.Tk.__init__(self)
# self.event = event
self.geometry('200x90')
self.val_in = tk.StringVar()
self.val_out = tk.StringVar()
self.label_in = tk.Label(self, text='Incoming')
self.label_out = tk.Label(self, text='Outgoing')
self.entry_in = tkinter.Entry(self, textvariable=self.val_in)
self.entry_out = tkinter.Entry(self, textvariable=self.val_out)
self.button = tkinter.Button(self, text='Start!',
command=self.judge)
self.label_in.grid(row=0, column=0)
self.label_out.grid(row=1, column=0)
self.entry_in.grid(row=0, column=1)
self.entry_out.grid(row=1, column=1)
self.button.grid(row=2, column=0)
self.mainloop()
def judge(self):
t = threading.Thread(target=self.schedule)
t.start()
def schedule(self):
in_old, out_old = seconds()
while 1:
time.sleep(1)
in_new, out_new = seconds()
net_in = (in_new - in_old) / 1024
net_out = (out_new - out_old) / 1024
net_in = str(net_in).split('.')[0] + '.' + str(net_in).split('.')[1][:2]
net_out = str(net_out).split('.')[0] + '.' + str(net_out).split('.')[1][:2]
self.val_in.set(str(net_in) + 'KB/s')
self.val_out.set(str(net_out) + 'KB/s')
in_old = in_new
out_old = out_new
if __name__ == '__main__':
Window()
